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| Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | ||
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Solution Type Sun Alert Sure Solution 1020324.1 : Sun StorageTek and Storage Arrays May Experience Data Corruption for Volumes 2TB or Larger in Size
PreviouslyPublishedAs 256288 Bug Id <SUNBUG: 6821652>, <SUNBUG: 6821654>, <SUNBUG: 6821655>, <SUNBUG: 6822129> Date of Workaround Release 01-Apr-2009 Date of Resolved Release 11-Jun-2009 Sun StorageTek and Storage Arrays May Experience Data Corruption for Volumes 2TB or Larger in Size (see below) 1. ImpactThis issue may result in data corruption for volumes at least 2 Terabyte(TB)or larger in size. Systems with less than 2TB volumes are not affected. 2. Contributing FactorsThis issue may occur on the following platforms:
Notes: There are two scenarios that describe how this issue occurs. In each scenario, all of the conditions must be true for this issue to occur. Scenario #1: - 2TB or greater volume being accessed by host - A drive failure for the virtual disk that the volume resides - A host IO accesses a block at an offset that is 2TB or greater on the volume in question - The IO accesses a block that would be on the failed drive component of the volume Scenario #2: - 2TB or greater volume being accessed by host - A host WRITE IO accesses a block at an offset that is 2TB or greater on the volume in question - A controller reboot occurs for the owning controller, resulting in an interrupted write Note: Volumes with a RAID level 0 (data stripe with no mirror or parity) is only impacted in scenario #2 because a failed drive causes a loss of data, per the design of RAID 0. To identify affected firmware releases, do the following: Using the Sun StorageTek Common Array Manager From the browser: Click on the Storage Systems menu item in the side bar. Identify your array from the list and review the "Firmware Version" field. Using the SSCS CLI sscs list array <array_name> then review the "Firmware Version" field. Using the Sun StorageTek SANtricity Storage Manager From the GUI: 1) Open an Array Management window for your array 2) Storage Array Menu-> View Sub-Menu -> Profile 3) In the Summary tab, review the "Firmware version" field Using the SMcli CLI SMcli <array DNS or IP> -c "show storageArray summary;" then review the "Firmware version" field. 3. SymptomsWrong data could be returned on a reconstructed read, as well as seeinga potential data parity mismatch for applications that perform this type of check. Or wrong data could be written for the interrupted write, or the write IO itself could be dropped. The end result is data corruption. 4. WorkaroundTo avoid the issue until a final resolution is available, do not use volumes 2TB or greater in size.5. ResolutionThis issue is addressed in the following releases:
To obtain the array firmware version 7.50.08.10 or later, upgrade to Sun StorageTek Common Array Manager 6.4.0 which is available at: This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun Alert notification may contain information provided by third parties. The issues described in this Sun Alert notification may or may not impact your system(s). Sun makes no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary and confidential information. It is being provided to you pursuant to the provisions of your agreement to purchase services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use. This Sun Alert notification may only be used for the purposes contemplated by these agreements. Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved. Modification History 01-May-2009: updated Contributing Factors and Resolution sections 11-Jun-2009: updated Contributing Factors and Resolution sections. Now Resolved. Product Sun StorageTek 6140 Array Internal Contributor/submitter curtis.decotis@sun.com Internal Eng Responsible Engineer rich.floyd@sun.com Internal Eng Business Unit Group NWS (Storage) Internal Services Knowledge Engineer karen.edwards@sun.com Internal Comments (for SAs)
Sun Storage 6xxx products will find resolution by using controller firmware version All three components (CAM, SANtricity and the firmware) are currently https://dlrequest-zn-dlapps1.sfbay.sun.com/usr/search
Sun Storage 25xx products will find resolution by using controller Internal Sun Alert & FAB Admin Info 31-Mar-2009: karen, submitted yesterday. created and will send to 24 sunalert_review today Attachments This solution has no attachment |
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