Overland Storage SnapSAN VSS User Manual
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Overland Storage SnapSAN VSS User Manual

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SnapSAN
Overland
Storage
August 2012
10400401-001
VSS
™

User Guide

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Summary of Contents for Overland Storage SnapSAN VSS

  • Page 1: User Guide

    SnapSAN Overland ™ Storage User Guide August 2012 10400401-001...
  • Page 2 Overland Storage. Overland Storage provides this manual as is, without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Overland Storage may make improvements or changes in the product(s) or programs described in this manual at any time.
  • Page 3 Preface This user guide explains how to install, setup, and use the SnapSAN VSS Provider software. VSS Provider is software that facilitates business backup operations by linking the Volume Shadow Copy Service (VSS) of Microsoft® Windows Server® 2003 or Microsoft® Windows Server® 2008 with data replication (VSS Storage Volume Cloning or VSS Provider Replication and Mirroring) and a snapshot function (VSS Provider Snapshots).

  • Page 4: Typographical Conventions

    SnapSAN VSS User Guide Overland Technical Support For help configuring and using your SnapSAN VSS, search for help at: http://support.overlandstorage.com/kb You can email our technical support staff at techsupport@overlandstorage.com or get additional technical support information on the Contact Us web page: http://www.overlandstorage.com/company/contact-us/...

  • Page 5: Electrostatic Discharge Information

    SnapSAN VSS User Guide Electrostatic Discharge Information A discharge of static electricity can damage static-sensitive devices. Proper packaging and grounding techniques are necessary precautions to prevent damage. To prevent electrostatic damage, observe the following precautions: • Transport products in static-safe containers such as conductive tubes, bags, or boxes.

  • Page 6: Table Of Contents

    Backup Server Connected to Data Replication RV ................... 4-2 Collecting Information of Unclear Failure ....................4-3 Chapter 5 - Troubleshooting About Snapshot or Data Replication ......................5-1 Event Log Warning Message ......................... 5-1 Event Log Error Message ..........................5-2 10400401-001 08/2012  ©2012 Overland Storage, Inc.
  • Page 7 SnapSAN VSS User Guide Appendix A - Error Failure Messages Appendix B - Command Lists Index 10400401-001 08/2012  ©2012 Overland Storage, Inc.

  • Page 8: Chapter 1 - Overview

    VSS. Accordingly, a user can easily carry out non-interrupting backup without becoming involved with complicated scripts for each application, just by executing the requestor. Figure 1-1: VSS Basic Configuration 10400401-001 08/2012  ©2012 Overland Storage, Inc.

  • Page 9: Providers

    SnapSAN VSS User Guide Providers A hardware provider is software exclusively for the in-house manufactured disk arrays (supplied by the storage vendor), makes it possible to create shadow copies using hardware- specific replication functions. VSS Provider is a hardware provider.
  • Page 10 SnapSAN VSS User Guide • File system (NTFS) 10400401-001 08/2012  ©2012 Overland Storage, Inc.

  • Page 11: Chapter 2 - Vss Provider Installation

    At least 6 MB of memory on the application server and at least 30 MB of memory on the backup server are needed in order to use this software. Cooperation This software cooperates and operates with ControlCommand Protection Manager 10400401-001 08/2012  ©2012 Overland Storage, Inc.

  • Page 12: Vss Provider Installation And Operation Procedures

    SnapSAN VSS User Guide VSS Provider Installation and Operation Procedures This example shows the system installation procedure by taking a tape backup system in which the D series is used as an example. For the snapshot environment installation procedure, refer to the “Snapshot User’s Manual (Installation and Operation Guide for Windows)”.

  • Page 13: Chapter 3 - System Configuration

    Connect the path of individual servers, to be connected to the disk array, to the port of different directors of the disk array, limiting the servers to be accessed by AccessControl. 10400401-001 08/2012  ©2012 Overland Storage, Inc.

  • Page 14: Software Configuration

    SnapSAN VSS User Guide Software Configuration The example shows a software configuration. Select the software to use from the business equipment and operations mode. The software configuration varies according to the requestor selected. Figure 3-2: Software Configuration Example Hardware Required To install and use VSS Provider, the following hardware is needed: Disk Array –...

  • Page 15: Snapshot Or Data Replication

    SnapSAN VSS User Guide Application Server • JobCenter • Protection Manager • Protection Manager for Exchange • Exchange Server 2003 • VSS Provider • ControlCommand Backup Server • JobCenter • Protection Manager • NetBackup • VSS Provider • ControlCommand Management Server •...

  • Page 16: Initial Setup Of Volumes

    SnapSAN VSS User Guide replication operation is executed for a volume made up of multiple partitions or logical volumes or for a dynamic disk volume. The table below shows the function range for each disk. Table 3-1: Available Volume Type...

  • Page 17: Backup Server Connected To Data Replication Volume (Rv)

    SnapSAN VSS User Guide Backup Server Connected to Data Replication Volume (RV) When performing backup operations in which the data replication function is used, the initial setup below is necessary. Execute identical operations for target volumes used in backup operations.

  • Page 18: Chapter 4 - Error Management

    This section describes the procedure that returns a volume to its initial state when an error occurred during operation using the snapshot function. Execute the procedure below for all volumes subject to backup. 1. Start a command prompt on the backup server. 10400401-001 08/2012  ©2012 Overland Storage, Inc.

  • Page 19: Backup Server Connected To Data Replication Rv

    Start a command prompt on the backup server. 1. Check the RV state. Here, the state of logical disk name rv001 is checked. > iSMrc_query -rv rv001 -rvflg ld 10400401-001 08/2012  ©2012 Overland Storage, Inc.

  • Page 20: Collecting Information Of Unclear Failure

    Confirm that the iSMvolgather directory is created under the installation directory when the storage destination directory is not changed or under the specified directory when it is changed, and obtain the files under that directory. 10400401-001 08/2012  ©2012 Overland Storage, Inc.
  • Page 21 Moreover, since VSS Provider utilizes the snapshot or data replication function, if a failure occurs, also refer to the measures for errors described in the “Snapshot User’s Manual (Installation and Operation Guide for Windows)” or the “Data Replication User’s Manual (Installation and Operation Guide for Windows)”. 10400401-001 08/2012  ©2012 Overland Storage, Inc.

  • Page 22: Chapter 5 - Troubleshooting

    (including volumes not subject to backup), the (sample) warning below may be output to the (application) event log. This applies to SnapSAN Manager cluster partitions and others. Type: Warning Source:VSS Event ID:12290 Explanation:Volume Shadow Copy Service warning: GetVolumeInformationW (\\?\Volume{941f0b7b-120c-11d9-b701-505054503030}\,NULL,0,NULL, NULL,(0x00000000], , 260) == 0x00000057. hr = 0x00000000. 10400401-001 08/2012  ©2012 Overland Storage, Inc.

  • Page 23: Event Log Error Message

    SnapSAN VSS User Guide Event Log Error Message For Windows Server 2008, if there is a volume on the backup server whose state is Not Ready, such as an RV being replicated or LV being unlinked, the (example) error below may be output to an event log of the backup server by performing a VSS backup.
  • Page 24 WARNING, or INFO) is described. Explanation This field describes the causes of the message output, etc. Parameters in the message are also described in this field. Measure This field describes measures to be taken. 10400401-001 08/2012  ©2012 Overland Storage, Inc.
  • Page 25 SnapSAN VSS User Guide iSM13300 iSM13300: VSS HW provider started successfully. Term Description Type INFO Explanation Shows that VSS Provider started Unnecessary Measure iSM13301: VSS HW provider terminated by force. Term Description Type INFO Explanation Shows that VSS Provider was forcibly terminated...
  • Page 26 SnapSAN VSS User Guide iSM13852: Specified volume does not exist in a vollist file. SerialNumber=<aaa...a>, Term Description ERROR Type Explanation Shows that VSS Provider was called by a process that does not have Administrator privileges. Measure Re-execute following login to the Windows OS by a user who has Administrator privileges.
  • Page 27 SnapSAN VSS User Guide iSM13859: Failed to replicate. MV=<aaa...a>, RV=<bbb...b>. iSM13860: Parameter error. (Invalid Snapshot Set ID Term Description Type ERROR Explanation Replication failed. aaa...a: MV logical disk name bbb...b: RV logical disk name Measure After checking messages output by ControlCommand, check whether there is a mistake in setup by referring to the “Data Replication User’s Manual (Installation and Operation...
  • Page 28 SnapSAN VSS User Guide Term Description Type ERROR Explanation A wait for completion of separation failed. aaa...a: MV logical disk name bbb...b: RV logical disk name Measure After checking messages output by ControlCommand, check whether there is a mistake in setup by referring to the “Data Replication User’s Manual (Installation and Operation Guide for Windows)”...
  • Page 29 SnapSAN VSS User Guide iSM13864: Parameter error. (Invalid LUN information) Term Description Type ERROR Explanation A parameter error occurred. The LUN information is invalid. Measure After saving the information below, restart the VSS Provider service by referring to Chapter 3 “Actions When Error Occurs”.
  • Page 30 SnapSAN VSS User Guide iSM13874: No suitable SV was found for BV <aaa...a>. Term Description Type ERROR Explanation Shows that no SV suitable for VSS backup was found for the logical disk name indicated by aaa...a. aaa...a: Logical disk name...
  • Page 31 SnapSAN VSS User Guide iSM13880: Environment variable 'iSMrpl' not defined. Term Description Type ERROR Explanation The environment variable iSMrpl is not defined. [Measure] Confirm that ControlCommand has been installed. Measure If ControlCommand is installed, restart the server. iSM13881: Environment variable 'iSMvol' not defined.
  • Page 32 SnapSAN VSS User Guide iSM13884: Failed to change copy control state. MV=<aaa...a>, RV=<bbb...b>. Term Description Type ERROR Explanation A copy control state change failed. aaa...a: MV logical disk name bbb...b: RV logical disk name Measure After checking messages output by ControlCommand, check whether there is a mistake in setup by referring to the “Data Replication User’s Manual (Installation and Operation...
  • Page 33 SnapSAN VSS User Guide iSM20505: Environment variable ‘iSMvol’ is not defined. Term Description Type ERROR Explanation ControlCommand is not correctly installed. Measure Install ControlCommand correctly. iSM20506: Illegal <aaa...a> type. <bbb...b> Term Description Type ERROR Explanation [Explanation] The type that was specified for the pairvolflg or mode parameter is invalid.
  • Page 34 SnapSAN VSS User Guide iSM20511: iSMrc_lsdev: API Error has occurred. Term Description Type ERROR Explanation An error occurred during internal processing. Measure Make sure that the volume list was correctly created. iSM20512: Specified volume does not exist in Logical disk list.
  • Page 35 SnapSAN VSS User Guide iSM20516: Paramter control file write error. Term Description Type ERROR Explanation Writing to a control file failed. Measure Check the system operation state by referring to the event log or other information. iSM20517: Illegal devmode type. <aaa...a>...
  • Page 36 Puts a volume for which disable had been specified in a start state. -vol volumeSpecifies the LV or RV volume. A logical disk name can be specified in volume. -volflg vol_flgSpecifies the type of the volume specified in -vol. 10400401-001 08/2012  ©2012 Overland Storage, Inc.
  • Page 37 SnapSAN VSS User Guide This parameter must be specified together with -vol. The vol_flg that can be specified here is limited to ld. [USAGE] (1) Change the state of OS recognition for a LV to stop state (disable). A message is not output if the command succeeds.
  • Page 38 SnapSAN VSS User Guide z OPTIONS The iSMvss_clear command recognizes the following options: NoneChanges all the volumes to the enable state (which allows volumes to be recognized by the OS). deleteDeletes unnecessary device entry information from the registry. [USAGE] (1) Change all the volumes that were set to the disable state (which prevents volumes from being recognized by the OS) by the iSMvss command to the enable state (which allows volumes to be recognized by the OS).
  • Page 39 1-ii Error Event Log Error Message Event Log Warning Message Volume Shadow Copy Service VSS Provider Installation and Operation Procedures Hardware Configuration Flow VSS Provider Service Restarted Initial Setup of Volumes 10400401-001 08/2012  ©2012 Overland Storage, Inc.

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