RAID 1 hard drive replacement incompatibility issue on Sun V20z/V40z.

Asset ID:	1-73-1000020.1
Update Date:	2013-04-10
Keywords:

Solution Type FAB (standard) Sure

Solution 1000020.1 : RAID 1 hard drive replacement incompatibility issue on Sun V20z/V40z.

Related Items


Sun Fire V20z Server
 Sun Fire V40z Server

Related Categories


PLA-Support>Sun Systems>Sun_Other>Sun Collections>SN-OTH: Sun FAB

PreviouslyPublishedAs
200023

___________
***Checked for relevance on 20-Apr-2013***

Product
Sun Fire V20z Server
Sun Fire V40z Server

Bug Id
<BUG: 15247803>
<BUG: 15290608>

Part

Part No: F371-0292-01
Part Description: Fujitsu 73 GB CRU.HDD,SCSI,10K
Part Type: Disk

Impact

THIS POLICY IS FOR RAID 1 CRU ONLY.

If a RAID 1 system has Fujitsu drives for both the primary and secondary drives and receives a Seagate drive as a FRU, then the mirror cannot be recreated because the Seagate drive is slightly smaller than the Fujitsu. The issue is that both, SEA and FUJ disks have the same X Option (X9256A) that is used when ordering these peripherals.

The V20z and V40z OEM uses "generic industry" FW for their hard drives that create different volume capacities which will impact rebuilding RAID 1 array.

The following paragraph summarize the policy:

Replace a RAID 1 hard drive when:

The hard drive fails during operations due to unrecoverable data errors
For systems with Drive Failure Warning, the hard drive is due for replacement

Root Cause

Disk mirroring can not be recreated when the replacement drive is smaller than the drive that was replaced. Mirroring function seizes. Smaller capacity drives do not have the data capacity of the larger hard drive.

Workaround
No workaround available - see Resolution section below.

Resolution

All RAID 1 mirroring broken 73GB hard drives should be replaced with PN: F371-0292-xx CRUs.

The correction was made as follows:

Reference: ECO W0_32203
Part number creation: F371-0292-xx CRU,ASSY, FUJ, 73GB

Related Information

ECO: W0_32203

Internal Escalation ID: 1-9464506
Modification History
Date: 12-JUL-2006

Updated implementation type to reactive

Previously Published As: 102207

Internal Contributor/submitter: raymond.sasaki@sun.com
Internal Eng Business Unit Group: KE Authors
Internal Eng Responsible Engineer: Sej.lim@sun.com
Internal Services Knowledge Engineer: sean.hassall@sun.com

Internal Kasp FAB Legacy ID: 102207

Internal Sun Alert & FAB Admin Info
Critical Category:
Significant Change Date:
Avoidance: Workaround
Responsible Manager: null
Original Admin Info: null

Product_uuid
1acc55b3-4b82-11d8-99fc-080020a9ed93|Sun Fire V20z Server
4726b78d-56d2-11d8-9e3a-080020a9ed93|Sun Fire V40z Server

Attachments

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