Data corruption exposure on 3.5-inch 300 GB, 450 GB, and 600 GB 15000 rpm SAS hard drives - IBM Systems



Source

RETAIN tip: H207740

Symptom

The listed hard disk drives can be exposed to a data loss issue.

Description Option Part Number Replacement Part Number
IBM 300 GB 15000 rpm SAS 3.5-inch G2 Hot-Swap 49Y6092 49Y6093
IBM 450 GB 15000 rpm SAS 3.5-inch G2 Hot-Swap 49Y6097 49Y6098
IBM 600 GB 15000 rpm SAS 3.5-inch G2 Hot-Swap 49Y6102 49Y6103
IBM 300 GB 15000 rpm SAS 3.5-inch Hot-Swap 44W2234 44W2235
IBM 450 GB 15000 rpm SAS 3.5-inch Hot-Swap 44W2239 44W2240
IBM 600 GB 15000 rpm SAS 3.5-inch Hot-Swap 44W2244 44W2245


IBM-ESXSVPCA300900EST1 A3C2
IBM-ESXSVPCA450900EST1 A3B8
IBM-ESXSVPCA600900EST1 A3C2


Any firmware level earlier than A3C4 is affected. The Serial Attached SCSI (SAS) controller logging could indicate 04/44 messages.

Affected Configurations

The system can be any of the following IBM servers:

  • BladeCenter S, type 1948, any model
  • BladeCenter S, type 7779, any model
  • BladeCenter S, type 8886, any model
  • System x3200 M2, type 4367, any model
  • System x3200 M2, type 4368, any model
  • System x3200 M3, type 7327, any model
  • System x3200 M3, type 7328, any model
  • System x3250 M2, type 4190, any model
  • System x3250 M2, type 4191, any model
  • System x3250 M2, type 4194, any model
  • System x3250 M3, type 4251, any model
  • System x3250 M3, type 4252, any model
  • System x3300 M4, type 7382, any model
  • System x3350, type 4192, any model
  • System x3350, type 4193, any model
  • System x3400, type 7975, any model
  • System x3400, type 7976, any model
  • System x3400 M2, type 7836, any model
  • System x3400 M2, type 7837, any model
  • System x3400 M3, type 7378, any model
  • System x3400 M3, type 7379, any model
  • System x3500, type 7977, any model
  • System x3500 M2, type 7839, any model
  • System x3500 M3, type 7380, any model
  • System x3500 M4, type 7383, any model
  • System x3530 M4, type 7160, any model
  • System x3550, type 1013, any model
  • System x3550, type 1913, any model
  • System x3550, type 7978, any model
  • System x3550 M4, type 7914, any model
  • System x3620 M3, type 7376, any model
  • System x3630 M3, type 7377, any model
  • System x3630 M4, type 7158, any model
  • System x3650, type 1914, any model
  • System x3650, type 7979, any model
  • System x3650 M4, type 7915, any model
  • System x3755 M3, type 7164, any model

The system is configured with one or more of the following IBM options:

  • 300 GB 15000 rpm SAS 3.5-inch G2 Hot-Swap, option part number 49Y6092, replacement part number 49Y6093
  • 450 GB 15000 rpm SAS 3.5-inch G2 Hot-Swap, option part number 49Y6097, replacement part number 49Y6098
  • 600 GB 15000 rpm SAS 3.5-inch G2 Hot-Swap, option part number 49Y6102, replacement part number 49Y6103
  • 300 GB 15000 rpm SAS 3.5-inch Hot-Swap option part number 44W2234, replacement part number 44W2235
  • 450 GB 15000 rpm SAS 3.5-inch Hot-Swap option part number 44W2239, replacement part number 44W2240
  • 600 GB 15000 rpm SAS 3.5-inch Hot-Swap option part number 44W2244, replacement part number 44W2245
  • IBM BladeCenter S 6-Disk Storage Module, option 43W3581, any replacement part number

This tip is not software specific.

Any firmware level earlier than A3C4 is affected.

The system has the symptom described above.

Solution

This behavior has been corrected in the A3C4 hard drive firmware release. The firmware will be included in IBM SAS hard drive update program 1.12.01 and later levels.

IBM-ESXSVPCA300900EST1 A3C4
IBM-ESXSVPCA450900EST1 A3C4
IBM-ESXSVPCA600900EST1 A3C4

The file is available by selecting the appropriate Product Group, type of System, Product name, Product machine type, and Operating system on IBM Support's Fix Central web page, at the following URL:

Additional Information

A subset of optional IBM hard drives shipped between April 2010 and January 2013 running firmware levels A3C2, A3C0, A3BE, or A3B8 can be exposed to a possible undetected data loss or data error during a proximal write.

(The "proximal write" feature does a skip operation on the data transfer from DRAM to disk to improve performance.) This issue occurs when the starting Logical Block Address (LBA) is a reassigned LBA.

A firmware update designed to address this issue is now available. IBM strongly recommends application of this update as soon as possible.

An visual guide example:

  Disk layout showing simultaneous writes to reassigned LBA.

Applicable countries and regions

 


Document id:  MIGR-5092677
Last modified:  2013-09-12
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