IBM SAS RAID Series Manual
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IBM SAS RAID Series Manual

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Power Systems
SAS RAID controllers for IBM i

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  • Page 1 Power Systems SAS RAID controllers for IBM i...
  • Page 3 Power Systems SAS RAID controllers for IBM i...
  • Page 4 Note Before using this information and the product it supports, read the information in “Notices,” on page 57, “Safety notices” on page v, the IBM Systems Safety Notices manual, G229-9054, and the IBM Environmental Notices and User Guide, Z125–5823. ™...

  • Page 5: Table Of Contents

    Chapter 1. What’s new in SAS RAID controllers for IBM i ....1 Chapter 2. SAS RAID controllers for IBM i ..... 3 Feature comparison of SAS RAID cards .
  • Page 6 Appendix. Notices ....... 57 Trademarks . . 58 Electronic emission notices . . 58 Class A Notices . . 58 Terms and conditions . . 62 SAS RAID controllers for IBM i...

  • Page 7: Safety Notices

    Class 1 power levels. For this reason, never look into the end of an optical fiber cable or open receptacle. (C027) CAUTION: This product contains a Class 1M laser. Do not view directly with optical instruments. (C028) © Copyright IBM Corp. 2009...
  • Page 8 (C030) Power and cabling information for NEBS (Network Equipment-Building System) GR-1089-CORE The following comments apply to the IBM servers that have been designated as conforming to NEBS (Network Equipment-Building System) GR-1089-CORE: The equipment is suitable for installation in the following:...

  • Page 9: Chapter 1. What's New In Sas Raid Controllers For Ibm I

    Chapter 1. What’s new in SAS RAID controllers for IBM i This topic collection is new for the October 2009 release. © Copyright IBM Corp. 2009...
  • Page 10 SAS RAID controllers for IBM i...

  • Page 11: Chapter 2. Sas Raid Controllers For Ibm I

    PCI-X SAS RAID card comparison Use the table in this topic to compare the features of PCI-X SAS RAID cards for IBM i. There are also images of adapters for you to view. © Copyright IBM Corp. 2009...
  • Page 12 4. The cache battery pack for both adapters is contained in a single battery field-replaceable Unit (FRU), which is physically located on the 575C Auxiliary Cache card. Adapter graphics View the SAS RAID controllers. SAS RAID controllers for IBM i...
  • Page 13 Figure 1. CCIN 572A PCI-X266 External Dual-x4 3 Gb SAS adapter Figure 2. CCIN 57B8 planar RAID enablement card Chapter 2. SAS RAID controllers for IBM i...

  • Page 14: Pcie Sas Raid Card Comparison

    Consider these factors when using dual storage I/O adapter (IOA) functions. PCIe SAS RAID card comparison Use the table in this topic to compare the features of a PCI Express (PCIe) SAS RAID cards for IBM i. There are also images of adapters for you to view.
  • Page 15 Consider using an adapter that provides write cache when using RAID 5 or RAID 6. Adapter graphics View the SAS RAID controllers. Figure 4. CCIN 57B7 Planar Auxiliary Cache Figure 5. CCIN 57B3 PCIe x8 Ext Dual-x4 3 Gb SAS adapter Chapter 2. SAS RAID controllers for IBM i...

  • Page 16: Sas Architecture

    SCSI command set or the ATA/ATAPI command set depending on the device type. A SAS expander enables connections between a controller port and multiple I/O device ports by routing connections between the expander ports. Only a single connection through an expander can exist at any SAS RAID controllers for IBM i...

  • Page 17: Disk Arrays

    If a disk failure occurs, the disk can typically be replaced without interrupting normal system operations. System mirroring provides data redundancy by mirroring the same data across pairs of disks. Chapter 2. SAS RAID controllers for IBM i...

  • Page 18: Supported Raid Levels

    Related concepts “PCI-X SAS RAID card comparison” on page 3 Use the table in this topic to compare the features of PCI-X SAS RAID cards for IBM i. There are also images of adapters for you to view. “PCIe SAS RAID card comparison” on page 6 Use the table in this topic to compare the features of a PCI Express (PCIe) SAS RAID cards for IBM i.

  • Page 19: Raid 6

    The capacity of a disk array depends on the capacity of the disks used and the RAID level of the array. To calculate the capacity of a disk array, do the following: RAID 5 Multiply one fewer than the number of disks by the disk capacity. Chapter 2. SAS RAID controllers for IBM i...

  • Page 20: Raid Level Summary

    2. Select Display disk configuration from the Work with Disk Configuration display. 3. Select Display device parity status on the Display Disk Configuration display. The valid four states for IBM SAS Disk Arrays are RAID 5, RAID 6, RAID 5/Availability, and RAID 6/Availability.

  • Page 21: States For Disk Units

    This unit has lost power. The unit was previously connected to the controller but is no longer detected. Unknown The state of the disk could not be determined. Auxiliary write cache A duplicate, nonvolatile copy of write cache data can be preserved. Chapter 2. SAS RAID controllers for IBM i...

  • Page 22: Auxiliary Write Cache Adapter

    AWC. Because the AWC does not control other devices over the bus and communicates directly with its attached RAID controller over a dedicated SAS bus, it has little, if any, performance impact on the system. SAS RAID controllers for IBM i...

  • Page 23: Viewing Link Status Information

    3. Select Logical hardware resources (buses, IOPs, controllers,...). 4. Select System bus resources. 5. Select the IBM Dual Storage IOA by placing a 9 (Resources associated with IOP) in front of the desired adapter. 6. Enter 5 (Display detail) in front of Storage IOA for the desired adapter. The screen displayed will look similar to the following example: Chapter 2.
  • Page 24 Attached auxiliary IOA resource name: DC05 Attached auxiliary IOA serial number: YL3229020FF9 Attached auxiliary IOA link status : Operational Attached auxiliary IOA type-model . : 575C-001 Bottom F3=Exit F5=Refresh F6=Print F9=Change detail F12=Cancel F14=Dual Storage IOA Configuration SAS RAID controllers for IBM i...

  • Page 25: Chapter 3. Controller Software

    IBM i installation media, cumulative package media, and through the Web-based Fix Delivery Center for IBM i. This information is an overview of the IBM i software support that is required for the adapter. For complete information related to the installation and maintenance of IBM i, see the IBM ®...
  • Page 26 Updates to the adapter software support are packaged, distributed, and installed through the same mechanisms that are used for other portions of the IBM i Licensed Internal Code. The standard IBM i technical support procedures can be used to determine the latest available level of adapter software support.

  • Page 27: Chapter 4. Common Controller And Disk Array Management Tasks

    Use the information in this section to manage your SAS RAID disk arrays. v Device parity protection The topic describes the use of device parity protection on IBM i. v Managing disk arrays Refer to this topic to see the interface for performing various tasks with disk arrays.
  • Page 28 It is recommended that SSDs be protected by RAID 5, RAID 6, or by system mirroring. See Installing and configuring Solid State Drives to identify specific configuration and placement requirements related to the SSD devices. Related information Installing and configuring Solid State Drives SAS RAID controllers for IBM i...

  • Page 29: Chapter 5. Dual Storage Ioa Configurations

    Related concepts “PCI-X SAS RAID card comparison” on page 3 Use the table in this topic to compare the features of PCI-X SAS RAID cards for IBM i. There are also images of adapters for you to view. “PCIe SAS RAID card comparison” on page 6 Use the table in this topic to compare the features of a PCI Express (PCIe) SAS RAID cards for IBM i.

  • Page 30: Dual Storage Ioa Functions

    Figure 11. Dual storage IOA RAID configuration Figure 12. Dual storage IOA system mirroring configuration Dual storage IOA functions Consider these factors when using dual storage I/O adapter (IOA) functions. SAS RAID controllers for IBM i...
  • Page 31 Use of the dual storage IOA function requires controller and IBM i software support. Controller support is shown in the feature comparison tables for PCIe and PCI-X cards. Look for controllers that have Dual Storage IOA configuration marked as Yes. The IBM i software levels that are required for multi-initiator support are identified in the Controller software verification topic.

  • Page 32: Dual Storage Ioa Function Attributes

    Verify the minimum software support that is required for your specific controller. “PCI-X SAS RAID card comparison” on page 3 Use the table in this topic to compare the features of PCI-X SAS RAID cards for IBM i. There are also images of adapters for you to view.

  • Page 33: Sas Cabling Considerations

    Auxiliary Storage Hardware Resource Detail Description ... . : Storage IOA Type-model ... . : 574E-001 Status ....: Operational Serial number .

  • Page 34: Performance Considerations

    (for example, 2, 4, 6, and so forth) to be created. It also enables the system to optimize disk arrays on each controller. As a result, the two controllers will have an equal number of disk units with an active path. To change the parity set optimization, see Changing parity set optimization. SAS RAID controllers for IBM i...
  • Page 35 Figure 13. Dual storage IOA optimization. This figure shows RAID arrays with primary and secondary adapters. Viewing the active or passive path of disk units To view the active or passive path of the disk units, complete the following steps. 1.

  • Page 36: Installing Dual Storage Ioa Configurations

    3. Select Logical hardware resources (buses, IOPs, controllers) on the Hardware Service Manager menu. 4. Select System bus resources on the Logical Hardware Resources on the System Bus menu. 5. Select the Virtual IOP by typing a 9 (Resources associated with IOP) in front of the desired IBM dual storage IOA.
  • Page 37 1. Verify that all pre-requisites are permanently applied. 2. Install the SAS controllers into the system or partition. Note: Do not attach any cables to the SAS controllers. 3. To prevent errors while connecting the cables, perform a normal shutdown of the system or partition before you attach the cables.
  • Page 38 SAS RAID controllers for IBM i...

  • Page 39: Chapter 6. Sas Raid Controller Maintenance

    Displaying rechargeable battery information Use this procedure to display information about the controller’s rechargeable battery using the Hardware ® Service Manager in the IBM i operating system. 1. Sign on to the system with at least service level authority. 2. On the command line, type strsst. Press Enter.
  • Page 40 Physical card slot identifier containing the selected controller Battery Type The type of rechargeable cache battery pack. Battery State Indicates if an error condition currently exists related to the rechargeable cache battery pack. The SAS RAID controllers for IBM i...

  • Page 41: Error State

    possible values for this field are: Table 7. Battery state No battery warning/error Warning condition Error condition Unknown No warning or error A warning condition An error condition Information is not available condition currently exists. currently exists and an currently exists and an to determine whether a error has been logged.

  • Page 42: Forcing A Rechargeable Battery Error

    Note: The battery is a lithium ion battery. To avoid possible explosion, do not burn. Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local regulations. In the United SAS RAID controllers for IBM i...

  • Page 43: Replacing A 572B Nonconcurrent Maintainable Battery Pack

    States, IBM has a process for the collection of this battery. For information, call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. Attention: To prevent data loss, if the cache battery pack is not already in the error state, follow the steps described in “Forcing a rechargeable battery error”...
  • Page 44 7. Reinsert the pins (D) into the rivets from the back of the adapter. 8. Connect the cache battery pack connector (B) to the adapter. The plug connects to the adapter in only one way, so it cannot be inserted incorrectly. SAS RAID controllers for IBM i...

  • Page 45: Replacing A 57B7 Concurrent Maintainable Battery Pack

    9. Reinstall the adapter. Replacing a 57B7 concurrent maintainable battery pack Use this procedure to replace the concurrent maintainable battery pack on adapter type CCIN 57B7. Attention: Before continuing with this procedure, determine that it is safe to replace the cache battery pack.

  • Page 46: Replacing A 574E Concurrent Maintainable Battery Pack

    1. Using the following illustration to locate the battery components, verify that the cache data present LED (C) is not flashing. If it is flashing, do not continue; return to “Forcing a rechargeable battery SAS RAID controllers for IBM i...

  • Page 47: Replacing A 572F/575C Card Set Concurrent Maintainable Battery Pack

    error” on page 34. Figure 17. Replacing the 574E cache battery (B) Cache battery pack (C) Cache data present LED (D) Cache battery tab (E) Cache battery tab 2. Squeeze tab (D) against tab (E) to disengage the battery retaining tab, pull out the cache battery pack ( B ), and remove it from the controller.

  • Page 48: Separating The 572F/575C Card Set And Moving The Cache Directory Card

    Important: To avoid loss of cache data, do not remove the cache battery during this procedure. Notes: v This procedure should only be performed if directed from an isolation procedure or a maintenance analysis procedure (MAP). SAS RAID controllers for IBM i...
  • Page 49 v If you are removing the adapter from a double-wide cassette, go to the procedures in your system unit’s service information for removing a double-wide adapter from a double-wide cassette. Attention: All cards are sensitive to electrostatic discharge. See Handling static-sensitive devices before beginning this procedure.
  • Page 50 5. Turn the 572F storage adapter over so the components are facing up. Locate the cache directory card D on the 572F storage adapter. The cache directory card is the small rectangular card mounted on SAS RAID controllers for IBM i...
  • Page 51 the I/O card. Figure 22. Cache directory card D Cache directory card 6. Unseat the connector on the cache directory card by wiggling the two corners that are farthest from the mounting pegs. To disengage the mounting pegs, pivot the cache directory card back over the mounting pegs.
  • Page 52 9. Cassette installations only: If you are installing the 572F/575C card set adapter into a cassette, perform the following steps: a. Remove the adapter handle B as shown in Figure 25 on page 45. SAS RAID controllers for IBM i...

  • Page 53: Viewing Sas Fabric Path Information

    Figure 25. Cassette adapter handle attachment A Push-rivets B Adapter handle b. If you removed the double-wide PCI adapter from a cassette in the beginning of this procedure, reinstall the adapter into the double-wide cassette to complete the installation. See the procedures in your system unit’s service information for installing a double-wide adapter in a double-wide cassette.
  • Page 54 F5=Refresh F6=Print F12=Cancel Selecting a device will display the details of all the nodes on each path between the controller and the device. Following is an example for Display SAS fabric path graphical view. SAS RAID controllers for IBM i...
  • Page 55 SAS Fabric Path Graphical View Adapter DC03 Path Active : Yes Path Active : Yes Path State : Operational Path State : Operational +------------------------------------------------------------------------------+ SAS Address : 5005076C07377C01 || SAS Address : 5005076C07377C01 Port || Port Status : Operational || Status : Operational Info : 3.0 GBPS...
  • Page 56 The possible status values for the SAS Fabric Path Data View and the SAS Fabric Path Graphical View follow. Table 8. Status Description Operational No problem detected Degraded The SAS node is degraded Failed The SAS node is failed Suspect The SAS node is suspect of contributing to a failure SAS RAID controllers for IBM i...

  • Page 57: Example: Using Sas Fabric Path Information

    Table 8. (continued) Status Description Missing The SAS node is no longer detected by controller Not valid The SAS node is incorrectly connected Unknown Unknown or unexpected status Example: Using SAS fabric path information This data becomes helpful in determining the cause of configuration or SAS fabric problems. The following example assumes a cascaded disk enclosure with a broken connection on one path between the cascaded enclosures.
  • Page 58 Operational DMP015 Failed Operational DMP024 Failed Operational Operational Operational Failed Operational For Display SAS fabric path graphical view, choosing one of the devices with a Failed path will display information similar to the following. SAS RAID controllers for IBM i...
  • Page 59 +------------------------------------------------------------------------------+ Adapter DC01 | Path Active : No Path Active : Yes | Path State : Failed Path State : Operational +------------------------------------------------------------------------------+ | SAS Address : 5005076C07434609 || SAS Address : 5005076C07434609 | Port || Port | Status : Operational || Status : Operational | Info...
  • Page 60 || SAS Address : 5000CCA003263941 | Status : Missing || Status : Operational +------------------------------------------------------------------------------+ Device Lun DMP013 +------------------------------------------------------------------------------+ For SAS Fabric Path Data View, pressing the F11 key will display information similar to the following. SAS RAID controllers for IBM i...
  • Page 61 SAS Fabric Path Data View Adapter Adapter Port Path Active Path State Device DC01 Failed DMP013 DC01 Operational DMP013 Node SAS Address Port Type Port Status Info 5005076C07434609 Adapter Operational 3.0 GBPS 500A0B81E1AA9000 Expander Operational 3.0 GBPS 500A0B81E1AA9000 Expander Missing Status 0 5000CCA003263941 Device Lun...
  • Page 62 SAS RAID controllers for IBM i...

  • Page 63: Chapter 7. Sas Address And Physical Location Information

    FFFFFFFF indicates the identity of the device is not known or indicates a SAS RAID controller. v ccFFFFFF identifies only a controller’s SAS port. v cceellFF identifies the controller port, expander port, and LUN of an attached device. © Copyright IBM Corp. 2009...
  • Page 64 Figure 27. Example of SAS subsystem unit addresses SAS RAID controllers for IBM i...

  • Page 65: Appendix. Notices

    All statements regarding the manufacturer’s future direction or intent are subject to change or withdrawal without notice, and represent goals and objectives only. © Copyright IBM Corp. 2009...

  • Page 66: Trademarks

    IBM, the IBM logo, and ibm.com are trademarks or registered trademarks of International Business Machines Corp., registered in many jurisdictions worldwide. Other product and service names might be trademarks of IBM or other companies. A current list of IBM trademarks is available on the Web at Copyright and trademark information at www.ibm.com/legal/copytrade.shtml.
  • Page 67 This product is in conformity with the protection requirements of EU Council Directive 2004/108/EC on the approximation of the laws of the Member States relating to electromagnetic compatibility. IBM cannot accept responsibility for any failure to satisfy the protection requirements resulting from a non-recommended modification of the product, including the fitting of non-IBM option cards.
  • Page 68 The following is a summary of the EMI Taiwan statement above. Warning: This is a Class A product. In a domestic environment this product may cause radio interference in which case the user will be required to take adequate measures. IBM Taiwan Contact Information: SAS RAID controllers for IBM i...
  • Page 69 Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu betreiben. Des Weiteren dürfen auch nur von der IBM empfohlene Kabel angeschlossen werden. IBM übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne Zustimmung der IBM verändert bzw.

  • Page 70: Terms And Conditions

    THE MANUFACTURER MAKES NO GUARANTEE ABOUT THE CONTENT OF THESE PUBLICATIONS. THESE PUBLICATIONS ARE PROVIDED ″AS-IS″ AND WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE. SAS RAID controllers for IBM i...
  • Page 72 Printed in USA...

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