Certain Seagate disk drives may experience servo seek errors.

Asset ID:	1-73-1022189.1
Update Date:	2010-06-09
Keywords:

Solution Type FAB (standard) Sure

Solution 1022189.1 : Certain Seagate disk drives may experience servo seek errors.

Impact

Certain disk drives with disk firmware version SUOB, SUOD or SUOE may experience servo seek retries which can cause drive failures.

Contributing Factors

These issues can occur on the following drive types...

ST32502NS (250.0GB) SATA Disk Drive
ST35002NS (500.0GB) SATA Disk Drive
ST37502NS (750.0GB) SATA Disk Drive
ST31000NS (1.0TB) SATA Disk Drive

...with firmware versions SU0B, SU0D or SU0E for the following platforms;

Sun Fire X4500 and X4540
Sun Fire X2100 and X2100 M2 (250GB only)
Sun Fire X2200 M2 (250GB only)
Sun Fire X2250 (250GB only)
Ultra24 (250GB only)
Sun Fire T1000 (250GB only)
Sun SPARC Enterprise T1000 (250GB only)
Sun Storage J4200/J4400 Arrays (1 TB only)
Sun Storage J4500 arrays (500GB, 750GB & 1 TB only)
Sun Storage S7210, S7310 & S7410 (1 TB only)

Symptoms

The drive will be classified as a failed drive, resulting in a higher failure rate.

Root Cause

Because of the firmware bug, there is an uncompensated timing error due to head stack tilt, resulting in servo seek retries. If this happens on an ID seek, the actuator would get pulled to the latch, leading to a retry and resulting in a time out.

Sun is currently purging all inventory from manufacturing (WIP, Raw Stock and in Transit), FRUs and X-options except Finished Goods. The firmware has been released and all affected Services inventory began purging per GSAP 5085 starting on January 26, 2010. Reference the GSAP via the below (internal only) URL for additional details;

http://sro/prcp/gsaps/5085

Corrective Action

Workaround:

No workaround available - see Resolution section below.

Resolution:

Download and install the appropriate patch as outlined below if you have any of the drives mentioned above.

These issues are addressed in Firmware SU0F, as delivered in patch 141469-02 (or later) for boot drives and 141468-03 (or later) for non-boot drives, for the following drives;

ST32502NS (250.0GB) SATA Disk Drive
ST35002NS (500.0GB) SATA Disk Drive
ST37502NS (750.0GB) SATA Disk Drive
ST31000NS (1.0TB) SATA Disk Drive

...and for the following platforms;

Sun Fire X4500 and X4540
Sun Fire X2100 and X2100 M2 (250GB only)
Sun Fire X2200 M2 (250GB only)
Sun Fire X2250 (250GB only)
Ultra 24 (250GB only)
Sun Fire T1000 (250GB only)
Sun SPARC Enterprise T1000 (250GB only)

To address this issue for ST31000NS (1.0TB) drives in J4200/J4400 arrays only, the following CAMS patch is required:

142798-02 (FW update for CAM 6.5 on Solaris)
142799-02 (FW udpate for CAM 6.5 on Windows)
142799-02 (FW update for CAM 6.5 on Linux)

Installation of these patches will vary for each OS, and instructions can be found in the README file of each patch.

For Sun 7210, 7310 and 7410 Unified Storage platforms the firmware is included as part of Q3.4 or later and is available via the below URL;

http://wikis.sun.com/display/FishWorks/Software+Updates

Identification of Affected Parts (how to):

To determine the firmware revision on the drive, run format(1M) with 'inquiry', for all systems except Sun 7210, 7310 and 7410 as in the following examples;

Example 1:

# format

Searching for disks...done
AVAILABLE DISK SELECTIONS:
      0. c0t0d0 <ATA-SEAGATEST31000N-SU0B cyl 60797 alt 2 hd 255 sec 126>
         /pci@0,0/pci1022,7458@1/pci11ab,11ab@1/disk@0,0
      1. c0t1d0 <ATA-SEAGATEST31000N-SU0B cyl 60797 alt 2 hd 255 sec 126>
         /pci@0,0/pci1022,7458@1/pci11ab,11ab@1/disk@1,0
      2. c0t2d0 <ATA-SEAGATEST31000N-SU0B cyl 60797 alt 2 hd 255 sec 126>
         /pci@0,0/pci1022,7458@1/pci11ab,11ab@1/disk@2,0
      3. c0t3d0 <ATA-SEAGATEST31000N-SU0B cyl 60797 alt 2 hd 255 sec 126>
          ...
     39. c5t4d0 <ATA-SEAGATEST31000N-SU0B cyl 60797 alt 2 hd 255 sec 126>
         /pci@2,0/pci1022,7458@8/pci11ab,11ab@1/disk@4,0
     40. c5t7d0 <ATA-SEAGATEST31000N-SU0B cyl 60797 alt 2 hd 255 sec 126>
         /pci@2,0/pci1022,7458@8/pci11ab,11ab@1/disk@7,0
Specify disk (enter its number): 40
selecting c5t7d0
[disk formatted]
FORMAT MENU:
       disk       - select a disk
       type       - select (define) a disk type
       partition - select (define) a partition table
       current    - describe the current disk
       format     - format and analyze the disk
       fdisk      - run the fdisk program
       repair     - repair a defective sector
       label      - write label to the disk
       analyze    - surface analysis
       defect     - defect list management
       backup     - search for backup labels
       verify     - read and display labels
       save       - save new disk/partition definitions
       inquiry    - show vendor, product and revision
       volname    - set 8-character volume name
       !<cmd>     - execute <cmd>, then return
       quit
format> inquiry
Vendor:   ATA
Product: SEAGATE ST31000N
Revision: SU0B or SU0D or SU0E <---

Example 2:

scsvr-56@[/]>format

Searching for disks...done
AVAILABLE DISK SELECTIONS:
      0. c2t0d0 <DEFAULT cyl 45597 alt 2 hd 255 sec 126>
         /pci@0,0/pci108e,534b@5/disk@0,0
      1. c2t1d0 <DEFAULT cyl 60797 alt 2 hd 255 sec 126>
         /pci@0,0/pci108e,534b@5/disk@1,0
Specify disk (enter its number): 1
selecting c2t1d0
[disk formatted]
FORMAT MENU:
       disk       - select a disk
       type       - select (define) a disk type
       partition - select (define) a partition table
       current    - describe the current disk
       format     - format and analyze the disk
       fdisk      - run the fdisk program
       repair     - repair a defective sector
       label      - write label to the disk
       analyze    - surface analysis
       defect     - defect list management
       backup     - search for backup labels
       verify     - read and display labels
       save       - save new disk/partition definitions
       inquiry    - show vendor, product and revision
       volname    - set 8-character volume name
       !<cmd>     - execute <cmd>, then return
       quit
format> inquiry
Vendor:   ATA
Product: SEAGATE ST31000N
Revision: SU0B or SU0D or SU0E <---
format>

Either of the above examples indicate the drive firmware revision is SU0B, SU0D or SU0E and requires an upgrade to SU0F.

For Sun 7210, 7310 and 7410, the firmware will be SU0E, if you are on Q3.3 or later.

Alternatively, drives can be inspected visually for the Sun model number (as listed in Contributing Factors section above).

Comments

Although this is a Controlled Proactive FAB, no Customer List or Letter will be provided.

You should strongly recommend the implementation of this FAB to all contracted customers that have one of these affected configurations.

References:

Resolution Patches: 141469-02, 141468-03, 142798-02, 142799-02
ECO: WO_42415, WO_42478, WO_41155, WO_42474
GSAP: 5085
StopShip/Purge: P001-20700

For information about FAB documents, its release processes, implementation strategies and billing information, go to the following URL:

http://tns.central/fab

For Sun Authorized Service Providers go to:

http://tns.central/SPE/fab/

In addition to the above you may email:

FAB-Manager@sun.com

Internal Contributor/submitter
Veerappan.Nachiappan@Sun.COM

Internal Eng Responsible Engineer
Douglas.K.Huang@Sun.COM Responsible Manager: Veerappan.Nachiappan@Sun.COM

Internal Services Knowledge Engineer
Joe.Davis@Sun.COM

Internal Eng Business Unit Group
NWS (Network Storage)

Internal Sun Alert & FAB Admin Info
08-Feb-2010: Completed draft and sent to Extended Review.
10-Feb-2010: On hold awtg resolution by submitter of feedback from Ext Rvw.
15-Feb-2010: Resolved affected Sun p/ns - still on hold awtg final Eng/Supplier review.
17-Feb-2010: Final changes provided by submitter - sending to Publish.

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