1. Manuals
  2. Brands
  3. Fujitsu Manuals
  4. Storage
  5. ETERNUS Multipath Driver V2
  6. User manual

Fujitsu ETERNUS Multipath Driver V2 User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
P2U3-0031-15ENZ0
FUJITSU Storage
ETERNUS Multipath Driver V2
User's Guide
for Linux

Advertisement

Table of Contents
loading

Related Manuals for Fujitsu ETERNUS Multipath Driver V2

Summary of Contents for Fujitsu ETERNUS Multipath Driver V2

  • Page 1 P2U3-0031-15ENZ0 FUJITSU Storage ETERNUS Multipath Driver V2 User's Guide for Linux...
  • Page 2 This page is intentionally left blank.

  • Page 3: Intended Audience

    FUJITSU Storage "ETERNUS Disk storage system, ETERNUS All Flash Array, GR series" (hereinafter referred to as "storage system" unless stated otherwise). The latest information is provided in the "FUJITSU Storage ETERNUS Multipath Driver V2 (for Linux) Installation Information" found under "Downloads" at the following URL: http://www.fujitsu.com/global/products/computing/storage/software/eternus-mpd/...
  • Page 4 ● Chapter 11 Command Reference This chapter contains important notes for using the Multipath Driver. A list of "Syslog Messages" is provided in the appendix. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 5 SLES9 Related Manuals Refer to the following related manuals for more information: • The storage system manual • The manual provided with ETERNUS Web GUI/GRmgr/ETERNUSmgr FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 6: Typographical Conventions

    Intel, the Intel logo, Itanium, and the Itanium logo are trademarks of Intel Corporation in the U.S. and other countries. The company names, product names and service names mentioned in this document are registered trademarks or trademarks of their respective companies. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 7 For error messages that do not require device monitoring, "NOTICE" or a lower error level are displayed. Modification effect This change affects when error levels are used for message monitoring. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 8 Does not inquire whether the udev function is used or not when using the "mpdconfig -s" command. Modification effect Does not affect any other operation. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 9 When connecting to the ETERNUS8000, the ETERNUS6000, and the ETERNUS4000 model 300 and 500, Max Throttle does not have to be set with the "mpdconfig -m" command. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...
  • Page 10 Modification effect When performing message monitoring, the newly added message may not be monitored as intended. Note that this change does not affect the message monitoring function with Fujitsu middleware. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux...
  • Page 11 SCSI%u (%u, %u ,%u): ERROR=0x06: parity error SCSI%u (%u, %u ,%u): ERROR=0x07: internal error SCSI%u (%u, %u ,%u): ERROR=0x08: reset SCSI%u (%u, %u ,%u): ERROR=0x0b: soft error FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 12 Modification effect When performing message monitoring, the newly added message may not be monitored as intended. Note that this change does not affect the message monitoring function with Fujitsu middleware. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux...
  • Page 13 Modification effect When analyzing the result of the "iompadm info" command, the newly added message may not be analyzed as intended. Note that this change does not affect the Fujitsu middleware that analyzes the "iompadm info" command result. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux...
  • Page 14 SCSI%u (%u, %u ,%u): incomplete scsi cdb=0x%x Modification effect When performing message monitoring, the newly added message may not be monitored as intended. Note that this change does not affect the message monitoring function with Fujitsu middleware. ■ V2.0L14 modification ●...
  • Page 15 Modification effect When performing message monitoring, the newly added message may not be monitored as intended. Note that this change does not affect the message monitoring function with Fujitsu middleware. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux...
  • Page 16 Modification effect When performing message monitoring, the newly added message may not be monitored as intended. Note that this change does not affect the message monitoring function with Fujitsu middleware. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux...
  • Page 17 ETERNUS Multipath Driver is not loaded. Modification effect When performing message monitoring, the newly added message may not be monitored as intended. Note that this change does not affect the message monitoring function with Fujitsu middleware. ■ V2.0L24 modifications ●...
  • Page 18 A service (mpdprerc) for the Multipath Driver is added to the services that are executed at system startup. Apart from the adding of the services listed above, there is no other affect on servers. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...
  • Page 19 LUN =%d. Modification effect When performing message monitoring, the newly added message may not be monitored as intended. Note that this change does not affect the message monitoring function with Fujitsu middleware. ● Modification outline The default Max Throttle setting of the ETERNUS DX60/DX60 S2, DX80/DX80 S2, DX90/DX90 S2 is automated.
  • Page 20 The following table shows the updates for each Multipath Driver version: Fibre Channel connections are available for all the supported OSs. The latest information is provided in the "FUJITSU Storage ETERNUS Multipath Driver V2 (for Linux) Installation Information" found under "Downloads" at the following URL: http://www.fujitsu.com/global/products/computing/storage/software/eternus-mpd/...
  • Page 21 LifeKeeper clustering software with Red Hat Enterprise Linux AS (v.4 for x86) Update 4 and Red Hat Enterprise Linux ES (v.4 for x86) Update 4 is supported. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...
  • Page 22 V2.0L14 The following storage systems are supported: (November 2009) ETERNUS DX60 SAS model ETERNUS DX80 SAS model ETERNUS DX90 ETERNUS DX400 series ETERNUS DX8000 series FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 23 SUSE Linux Enterprise Server 11 (Service Pack 1 or later) • V2.0L24 LifeKeeper is supported for the following OSs: (February 2013) Red Hat Enterprise Linux 5 (Update 8 or later) FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 24 Red Hat Enterprise Linux 7 SUSE Linux Enterprise Server 10 (Service Pack 1 or later) SUSE Linux Enterprise Server 11 (Service Pack 1 or later) FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 25: Table Of Contents

    "iompadm info" Command ..........................50 Disconnecting/Reconnecting Paths when Replacing Hardware ......... 51 3.5.1 "iompadm change" Command ........................51 3.5.2 "iompadm restart" Command ........................52 Multipath Recovery ......................52 FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 26 Path Reduction (Cable Reduction) ..................69 5.6.1 Reduction without Server Rebooting ......................69 5.6.2 Reduction with Server Rebooting ........................69 Path Addition and Reduction (HBA Addition and Reduction) ..........70 FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 27 Reduction with Server Rebooting ........................89 Path Addition (Cable Addition) ..................90 7.5.1 Addition without Server Rebooting ........................ 90 7.5.2 Addition with Server Rebooting ........................90 FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 28 Path Reduction (Cable Reduction) .................. 103 9.6.1 Reduction without Server Rebooting ......................103 9.6.2 Reduction with Server Rebooting ......................... 104 Path Addition and Reduction (NIC Addition and Reduction) ........... 104 FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 29 Frequently Asked Questions .................... 114 Chapter 11 Command Reference 11.1 "iompadm" Commands ....................115 11.2 "mpdconfig" Command ....................120 11.3 "mpd_snap" Command ....................124 Appendix A Syslog Messages Index FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 30 4-path failover, active to standby........................ 47 Figure 3.8 Multipath failover, a storage system with CM not assigned................. 48 Figure 10.1 Use identical LUNs............................. 106 Figure 10.2 Start from LUN0............................107 FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 31 Device identification example ........................49 Table 3.4 Change unit specification ..........................51 Table 11.1 "iompadm" command output elements..................... 117 Table 11.2 "iompadm" command status detail information..................117 FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 32: Chapter 1 What Is Multipath Driver

    If an error occurs in the PCI bus of the server, access to the server may not be possible or the server may crash. To prevent this situation from occurring, configure a clustering server to continue the operation by switching the cluster to save an HBA. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 33: Connections

    In a multipath connection, all HBAs or NICs must be of the same type. Fibre Channel Hubs cannot be used. HA Port Devices for ETERNUS3000 model 50 and ETERNUS GR710 can be used. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 34: Chapter 2 Multipath Driver System Setup

    "by-id name" for referring to storage system disks. When using FUJITSU Software PRIMECLUSTER Global Disk Services with a Red Hat Enterprise Linux AS v.4 environment, a Red Hat Enterprise Linux ES v.4 environment, or a Red Hat Enterprise Linux environment, refer to "2.1.2 When Using FUJITSU Software PRIMECLUSTER Global Disk Services (Storage System Recognition...

  • Page 35: When Using Fujitsu Software Primecluster Global Disk Services (Storage System Recognition Order Setting)

    "Downloads" at the following URL: http://www.fujitsu.com/global/products/computing/storage/software/eternus-mpd/ 2.1.1.3 Notes Notes of how to use by-id names are provided in the "FUJITSU Storage ETERNUS Multipath Driver V2 (for Linux) Installation Information" found under "Downloads" at the following URL: http://www.fujitsu.com/global/products/computing/storage/software/eternus-mpd/ 2.1.2...
  • Page 36 If the order is unchanged, the server does not need to be restarted. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...

  • Page 37: Multipath Driver Related Log

    Approx. 1MB Installation history log. When the mpdsetup.log reaches its (mpdsetup.log.1, maximum size, the file rotates in the order of mpdsetup.log.1 mpdsetup.log.2) and mpdsetup.log.2. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 38: Chapter 3 Multipath Driver Functions And Operation

    You can disconnect a specified path by placing it in Offline status. This allows any necessary maintenance work to be performed. The path can be reconnected after the maintenance. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...

  • Page 39: Path Management

    If no active or standby path is available, a warning path may be used for I/O. • [active "warning"] or [standby "warning"] is displayed by the "iompadm info" command. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 40: Figure 3.1 Path Status Transitions

    [stop "stop by command"] is displayed by the "iompadm info" command. These path status transitions are shown in the following figure. Figure 3.1 Path status transitions fatal fail active warning fail standby stop FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 41 For SAS connection, the operating path information will disappear (not be displayed in the result of the "iompadm info" command) for "Link Down" paths. This path information will reappear when the link is restored. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 42: Checks And Path Status Transitions

    When a failure is detected by the check, the status does not change. When it is normal, the error counter is set to 100 and the status becomes warning. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...
  • Page 43 • Path stays in warning status for one hour. • Within one hour the path status changes from active/standby to warning and back 10 times. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 44: Load Balancing/Failover

    CM or not) and number of paths. For details on which storage systems have assigned CMs or not are provided in the "FUJITSU Storage ETERNUS Multipath Driver V2 (for Linux) Installation Information" found under "Downloads" at the following URL: http://www.fujitsu.com/global/products/computing/storage/software/eternus-mpd/...

  • Page 45: Figure 3.3 4-Path Load Balancing On A Storage System With Cm Assigned

    I/O request Multipath Driver HBA #0 HBA #1 HBA #2 HBA #3 LUN0/1 Load balance CM #0 CM #1 Storage system with CM not assigned FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 46: Failover

    Linux server I/O request Multipath Driver HBA #0 HBA #1 Active path Standby path Failure CM #0 CM #1 Storage system with CM assigned (2-path) FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 47: Figure 3.6 4-Path Failover, Active To Active

    HBA #2 HBA #3 Active path Active path Failure Standby path Standby path CM #0 CM #1 Storage system with CM assigned (4-path or more) FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 48: Figure 3.8 Multipath Failover, A Storage System With Cm Not Assigned

    HBA #2 HBA #3 Active path Active path Active path Active path LU0/1 Load balance Failure CM #0 CM #1 Storage system with CM not assigned FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 49: Identifying Disks And Paths

    The 3rd number is called the port number. Details of the port numbers (CAID) of each storage system model and their connections are provided in the "FUJITSU Storage ETERNUS Multipath Driver V2 (for Linux) Installation Information" found under "Downloads" at the following URL: http://www.fujitsu.com/global/products/computing/storage/software/eternus-mpd/...

  • Page 50: Multipath Status Display

    0000:03:05.0 standby "online" 11, 11, 2 DISK: ETERNUS_DXL- 130011-0000-0001 (sdc) PATH: sdc 0000:03:04.0 active "online" 10, 10, 0 sdc 0000:03:05.0 standby "online" 11, 11, 2 FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 51: Disconnecting/Reconnecting Paths When Replacing Hardware

    (g) Use this when replacing a group module. Details of the relationship between change units and storage systems are provided in the "FUJITSU Storage ETERNUS Multipath Driver V2 (for Linux) Installation Information" found under "Downloads" at the following URL: http://www.fujitsu.com/global/products/computing/storage/software/eternus-mpd/...

  • Page 52: Iompadm Restart" Command

    Reboot the server when the "iompadm restart" command is executed for a path for which "I/O rejection" is displayed as the "iompadm info" result but this path fails to recover. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...
  • Page 53 Before starting an addition process, use the "iompadm info" command to check that the existing devices are in normal status. • Before starting a reduction process, check that the device not to be reduced is in normal status. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 54: Storage System And Lu Addition

    When a new storage system is added, an enquiry is sent regarding the storage system recognition order. If by-id names are not being used, or are being used with FUJITSU Software PRIMECLUSTER Global Disk Services installed, follow the on-screen instructions.
  • Page 55 Execute the "mpdconfig -m" command to set a Max Throttle value for the new storage system. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. [Example] # /opt/FJSVmpd/bin/mpdconfig -m End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 56: Addition With Server Rebooting

    When adding storage systems to a configuration in which "by-id names" are not used or "by- id names" are used with FUJITSU Software PRIMECLUSTER Global Disk Services installed, set the recognition order for the storage systems that have already been recognized.

  • Page 57: Storage System And Lu Reduction

    When a new storage system is added without using the by-id names, or using the by-id names with FUJITSU Software PRIMECLUSTER Global Disk Services installed, execute the "mpdconfig -s" command to set the recognition order that includes new storage systems.

  • Page 58: Reduction With Server Rebooting

    When the storage system reduction reduces the number of storage systems connected to the server to one or less, execute the "mpdconfig -c" command to clear the storage system recognition order. [Example] # /opt/FJSVmpd/bin/mpdconfig -c FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 59 If a storage system is removed and the recognition order function is being used, execute the "mpdconfig -s" command to reconfigure the recognition order. [Example] # /opt/FJSVmpd/bin/mpdconfig -s FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 60: Path Addition (Cable Addition)

    Execute the "mpdconfig -m" command to set a Max Throttle value for the new path. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. [Example] # /opt/FJSVmpd/bin/mpdconfig -m End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 61: Addition With Server Rebooting

    Execute the "mpdconfig -m" command to set a Max Throttle value for the new path. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. [Example] # /opt/FJSVmpd/bin/mpdconfig -m End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 62: Path Reduction (Cable Reduction)

    "mpdconfig -m" command to set the Max Throttle value correctly. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 63: Reduction With Server Rebooting

    "mpdconfig -m" command to set the Max Throttle value correctly. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 64: Path Addition And Reduction (Hba Addition And Reduction)

    When a HBA is added, execute the "mpdconfig -m" command to set the Max Throttle values for the new path. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 65: Changing The Multipath Configuration (Sas Connection For Rhel-As4, Rhel-Es4, Rhel5, Or Sles10)

    Before starting an addition process, use the "iompadm info" command to check that the existing devices are in normal status. • Before starting a reduction process, check that the device not to be reduced is in normal status. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 66: Storage System Addition

    (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. [Example] # /opt/FJSVmpd/bin/mpdconfig -m If by-id names are not being used, or are being used with FUJITSU Software PRIMECLUSTER Global Disk Services installed, use the "mpdconfig -s" command to set the recognition order. [Example] # /opt/FJSVmpd/bin/mpdconfig -s End of procedure 5.1.2...

  • Page 67: Storage System Reduction

    # /opt/FJSVmpd/bin/mpdconfig -c End of procedure 5.2.2 Reduction with Server Rebooting Same as for FC/FCoE connection. Refer to "4.2.2 Reduction with Server Rebooting" (page 58). FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 68: Lu Addition

    Execute the "mpdconfig -m" command to set a Max Throttle value for the new path. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 69: Addition With Server Rebooting

    (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. End of procedure 5.6.2 Reduction with Server Rebooting Same as for FC/FCoE connection. Refer to "4.4.2 Reduction with Server Rebooting" (page 63). FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 70: Path Addition And Reduction (Hba Addition And Reduction)

    Adding and reducing HBAs with server rebooting is the same procedure as adding and reducing cables with server rebooting. Add or reduce HBAs at the same time that cables are being added or reduced. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...

  • Page 71: Changing The Multipath Configuration

    Before starting an addition process, use the "iompadm info" command to check that the existing devices are in normal status. • Before starting a reduction process, check that the device not to be reduced is in normal status. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 72: Storage System Addition

    [Example] # /opt/FJSVmpd/bin/mpdconfig -m If by-id names are not being used, or are being used with FUJITSU Software PRIMECLUSTER Global Disk Services installed, use the "mpdconfig -s" command to set the recognition order. [Example] # /opt/FJSVmpd/bin/mpdconfig -s End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux...

  • Page 73: For Suse Linux Enterprise Server 9

    Execute the "mpdconfig -m" command to set a Max Throttle value for the new storage system. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. [Example] # /opt/FJSVmpd/bin/mpdconfig -m FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 74: Storage System Reduction

    However, if the storage system reduction reduces the number of storage systems connected to the server to one or less, execute the "mpdconfig -c" command to clear the recognition order setting instead. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 75: Reduction With Server Rebooting

    Shut down the server. Detach the hardware. Disconnect the target storage system from the server (turn the storage system power off, disconnect the cables, etc.). FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 76: Lu Addition

    "4.1 Storage System and LU Addition" (page 54). LU Reduction Same as for FC/FCoE connection. Refer to "4.2 Storage System and LU Reduction" (page 57). FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 77: Path Addition (Cable Addition)

    Execute the "mpdconfig -m" command to set a Max Throttle value for the new path. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. [Example] # /opt/FJSVmpd/bin/mpdconfig -m End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 78: For Suse Linux Enterprise Server 9

    Execute the "mpdconfig -m" command to set a Max Throttle value for the new path. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. [Example] # /opt/FJSVmpd/bin/mpdconfig -m End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 79: Path Reduction (Cable Reduction)

    Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. Set the iSCSI service and delete the iSCSI target information of the removed path. End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 80: Reduction With Server Rebooting

    Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. Set the iSCSI service and delete the iSCSI target information of the removed path. End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 81: Path Addition And Reduction (Nic Addition And Reduction)

    Adding and reducing NICs with server rebooting is the same procedure as adding and reducing cables with server rebooting. Add or reduce NICs at the same time that cables are being added or reduced. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...

  • Page 82: (Fc/Fcoe Connection For Rhel6, Rhel7, Or Sles11)

    Before starting an addition process, use the "iompadm info" command to check that the existing devices are in normal status. • Before starting a reduction process, check that the device not to be reduced is in normal status. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 83: Storage System Addition

    Set up the storage system so that its LUs are accessible to the server, and then connect it to the server. For details on the settings, refer to the storage system manual. Restart the server. Power on the server and boot it up. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 84: Storage System Reduction

    Disconnect the target storage system from the server (turn the storage system power off, disconnect the cables, etc.). Delete the removed storage system from the Multipath Driver target list using the "mpdconfig -d" command. [Example] # /opt/FJSVmpd/bin/mpdconfig -d FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 85: Reduction With Server Rebooting

    # /opt/FJSVmpd/bin/iompadm info Delete the removed storage system from the Multipath Driver target list using the "mpdconfig -d" command. [Example] # /opt/FJSVmpd/bin/mpdconfig -d End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 86: Lu Addition

    Therefore, to access the SCSI disk via a sd* device name, add the LU so that it has the same device name before and after the system restart. If by-id names are used, this problem does not occur. End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 87: Addition With Server Rebooting

    Power on the server and boot it up. Use the "iompadm info" command to check that the new LU has been correctly recognized and incorporated. [Example] # /opt/FJSVmpd/bin/iompadm info End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 88: Lu Reduction

    LUs when the server is restarted after deleting LUs. Alter the OS and application settings as necessary. If by-id names are used, this problem does not occur. End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 89: Reduction With Server Rebooting

    Power on the server and boot it up. Use the "iompadm info" command to check that the removed LUs are disappeared from view. [Example] # /opt/FJSVmpd/bin/iompadm info End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 90: Path Addition (Cable Addition)

    End of procedure 7.5.2 Addition with Server Rebooting Use the following procedure to add extra cables while the server is shut down. Procedure Shut down the server. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 91: Path Reduction (Cable Reduction)

    Disconnect the target cable from the server (remove the connected cable, etc.). Delete the removed cable from the Multipath Driver target list using the "mpdconfig -d" command. [Example] # /opt/FJSVmpd/bin/mpdconfig -d FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 92: Reduction With Server Rebooting

    "mpdconfig -m" command to set the Max Throttle value correctly. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 93: Path Addition And Reduction (Hba Addition And Reduction)

    When a HBA is added, execute the "mpdconfig -m" command to set the Max Throttle values for the new path. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 94: Changing The Multipath Configuration (Sas Connection For Rhel6, Rhel7, Or Sles11)

    Before starting a reduction process, check that the device not to be reduced is in normal status. Storage System Addition Same as for FC/FCoE connection. Refer to "7.1 Storage System Addition" (page 83). FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 95: Storage System Reduction

    # /opt/FJSVmpd/bin/mpdconfig -d End of procedure 8.2.2 Reduction with Server Rebooting Same as for FC/FCoE connection. Refer to "7.2.2 Reduction with Server Rebooting" (page 85). FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 96: Lu Addition

    Use the "iompadm info" command to check the result. When the cables are disconnected, they should be automatically removed and disappear from the list. [Example] # /opt/FJSVmpd/bin/iompadm info FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 97: Reduction With Server Rebooting

    Adding and reducing HBAs with server rebooting is the same procedure as adding and reducing cables with server rebooting. Add or reduce HBAs at the same time that cables are being added or reduced. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...

  • Page 98: Chapter 9 Changing The Multipath Configuration

    Before starting an addition process, use the "iompadm info" command to check that the existing devices are in normal status. • Before starting a reduction process, check that the device not to be reduced is in normal status. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 99: Storage System Addition

    Execute the "mpdconfig -m" command to set a Max Throttle value for the new storage system. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. [Example] # /opt/FJSVmpd/bin/mpdconfig -m End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 100: Storage System Reduction

    Delete the removed hardware from the Multipath Driver target list using the "mpdconfig -d" command. [Example] # /opt/FJSVmpd/bin/mpdconfig -d Set the iSCSI service and delete the iSCSI target information of the removed storage system. End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 101: Reduction With Server Rebooting

    Same as for FC/FCoE connection. Refer to "7.3 LU Addition" (page 86). LU Reduction Same as for FC/FCoE connection. Refer to "7.4 LU Reduction" (page 88). FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 102: Path Addition (Cable Addition)

    Execute the "mpdconfig -m" command to set a Max Throttle value for the new path. Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. [Example] # /opt/FJSVmpd/bin/mpdconfig -m End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 103: Path Reduction (Cable Reduction)

    Refer to the software information (/opt/FJSVmpd/manual/english/readme.pdf) for the Max Throttle value computation method. Set the iSCSI service and delete the iSCSI target information of the removed path. End of procedure FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 104: Reduction With Server Rebooting

    Adding and reducing NICs with server rebooting is the same procedure as adding and reducing cables with server rebooting. Add or reduce NICs at the same time that cables are being added or reduced. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...

  • Page 105: Chapter 10 Notes When Using The Multipath Driver

    Notes when Using the Multipath Driver This chapter provides important additional information for using the Multipath Driver. For the latest information, refer to the "FUJITSU Storage ETERNUS Multipath Driver V2 (for Linux) Installation Information" found under "Downloads" at the following URL: http://www.fujitsu.com/global/products/computing/storage/software/eternus-mpd/...

  • Page 106: Figure 10.1 Use Identical Luns

    Figure 10.1 Use identical LUNs Linux server Linux server Storage system Storage system Volume set Volume set Same LUN Different LUN Storage system Storage system FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 107: Figure 10.2 Start From Lun0

    Figure 10.2 Start from LUN0 Linux server Linux server Storage system Storage system LU0, LU1, LU2, LU3 LU1, LU2, LU3, LU4 Volume set Volume set FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 108: Considerations For Linux Servers

    Changed CM assignments in a storage system with assigned CMs Path status (active/standby) will only reflect changes in the CM assignments after the server is rebooted. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...
  • Page 109 Multipath Driver version. Refer to "Linux Kernel and ETERNUS Multipath Driver Update" of the "FUJITSU Storage ETERNUS Multipath Driver V2 (for Linux) Installation Information" found under "Downloads" at the following URL: http://www.fujitsu.com/global/products/computing/storage/software/eternus-mpd/...
  • Page 110 Red Hat Enterprise Linux AS v.4, Red Hat Enterprise Linux ES v.4, or Red Hat Enterprise Linux 5 The link speed can be specified in /etc/modprobe.conf. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...

  • Page 111: Notes When Installing The Multipath Driver

    SUSE Linux Enterprise Server 9 (Service Pack 3 or later) • SUSE Linux Enterprise Server 10 (Service Pack 2 or later) • SUSE Linux Enterprise Server 11 (Service Pack 1 or later) FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 112 Note that the Multipath Driver can only be installed to the kernel of the host that installs KVM. Do not install the Multipath Driver in a guest OS. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...

  • Page 113: Troubleshooting

    If it is, follow the instructions in "Appendix A Syslog Messages" (page 125). Contact us according to your support contract for the messages whose action is "Contact a Fujitsu engineer". • When the command outputs an error message, refer to "Chapter 11 Command Reference"...

  • Page 114: Frequently Asked Questions

    If unnecessary information remains displayed, the following message may be sent to the syslog at ten- minute intervals. Timed out waiting for hotplug event XXXXX. Rebasing to YYYYY ("XXXXX" and "YYYYY" are arbitrary numbers) FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 115: Chapter 11 Command Reference

    Refer to the Output Format section for details of output information. iompadm info [disk_device_node] When specifying an "adapter" as the change_unit, the following format is available. iompadm change adapter PCI_bus_number FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 116 "0" is returned for a normal status Other than "0" is returned for an abend (and an error message is sent to the standard error output). FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...

  • Page 117: Table 11.1 "Iompadm" Command Output Elements

    A reset notice was received from the HBA driver or iSCSI initiator. HBA transport disrupted A transport disrupted notice was received from the HBA driver or iSCSI initiator. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 118 0000:03:05.0 standby "online" 11, 11, 2 DISK: ETERNUS_DXL- 130011-0000-0001 (sdc) PATH: sdc 0000:03:04.0 active "online" 10, 10, 0 sdc 0000:03:05.0 standby "online" 11, 11, 2 FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 119 11.1 "iompadm" Commands Error messages This section explains the main error messages and the resolution process. If any error message other than following appears, contact your Fujitsu engineer. must be superuser Cause: A user without the root-level user privilege executed the command.

  • Page 120: Mpdconfig" Command

    "0" is returned for a normal status Other than "0" is returned for an abend (and an error message is sent to the standard error output). FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED...
  • Page 121 40--> 0000:03:05.0 40--> ------------------------------------------------------------------------ If all settings are Check the above throttle values. correct, enter "y" Is the throttle configuration correct? y(yes), n(no) --> y FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 122 (/etc/modprobe.conf, /boot/initrd-2.6.18-8.el5-mpd.img) ... updating modprobe.conf.(/etc/modprobe.conf) ... creating initrd ... Remake of the initrd succeeded. The new recognition order is enabled after reboot. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 123 Remake of the initrd succeeded. Error messages This section explains the main error messages and the resolution process. If any error message other than following appears, contact your Fujitsu engineer. only root can execute this command. Cause: A user without the root-level user privilege executed the command.

  • Page 124: Mpd_Snap" Command

    Other than "0" is returned for an abend (and an error message is sent to the standard error output). Error messages This section explains the main error messages and the resolution process. If any error message other than following appears, contact your Fujitsu engineer. ERROR: This command can be used only by the super-user. Cause: A user without the root-level user privilege executed the command.

  • Page 125: Appendix A Syslog Messages

    Actual message The following sections explain the Multipath Driver messages (specifically the module_name:level:message part), their causes and suggested responses. If the error message continues to appear even after performing the suggested action, contact a Fujitsu engineer. ■ mpdt driver specific syslog messages...
  • Page 126 "3.3.1 Device Identification" (page 49). Action Set up a valid LUN mapping for the storage system indicated by the %s and restart the server. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 127 "3.3.1 Device Identification" (page 49). Action Connect the server and the storage system indicated by the %s with a redundant configuration and restart the server. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 128 ETERNUS6000, while %x is a number (the group number). For the position of the actual RT or CM in the device, refer to the "FUJITSU Storage ETERNUS Multipath Driver V2 (for Linux) Installation Information" found under "Downloads" at the following URL: http://www.fujitsu.com/global/products/computing/storage/software/eternus-mpd/...
  • Page 129 Identify the failed LU using the "iompadm info" command, respond as necessary to resolve the problem, and recover the paths using the "iompadm restart" command. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 130 MPDH%d: NOTICE: SCSI%u (%u, %u, %u) : Use of I/O path was restarted from STOP status. Cause The status of the indicated path has returned to online from stop. %d and %u are numbers. Action No action is required. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 131 SCSI%u (%u, %u ,%u): ERROR=0x2: HBA bus busy Cause The indicated HBA has reported a busy bus. %u are numbers. Action Contact a Fujitsu engineer. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 132 Contact a Fujitsu engineer. SCSI%u (%u, %u ,%u): ERROR=0x8: HBA reset Cause The indicated HBA reset has occurred. %u are numbers. Action Contact a Fujitsu engineer. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 133 SCSI%u (%u, %u ,%u): device busy Cause The indicated storage system is in BUSY status. %u are numbers. Action Check the storage system and respond as necessary. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 134 SK: sense key (hexadecimal) SC: sense code (hexadecimal) SSC: sub sense code (hexadecimal) FRU: failure point (hexadecimal) Action Check the storage system and respond as necessary. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 135 SK: sense key (hexadecimal) SC: sense code (hexadecimal) SSC: sub sense code (hexadecimal) FRU: failure point (hexadecimal) Action Check the storage system and respond as necessary. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 136 SCSI%u (%u, %u ,%u): incomplete scsi cdb=0x%x Cause I/O by the diagnosis function has failed. %u are numbers and %x is the hexadecimal failed command code. Action Contact a Fujitsu engineer. FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 137 CM assigned ....... 44 storage system with CM not assigned ......44 syslog..............108, 125 iompadm............50, 51, 115 iompadm change ..........51, 117 FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...
  • Page 138 Index Transition to Fatal Fail..........43 udev ................34 warning............... 39 FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux Copyright 2014 FUJITSU LIMITED P2U3-0031-15ENZ0...

  • Page 139: For Linux

    However, Fujitsu shall assume no responsibility for any operational problems as the result of errors, omissions, or the use of information in this manual. • Fujitsu assumes no liability for damages to third party copyrights or other rights arising from the use of any information in this manual.

Table of Contents