Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | |||
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Solution Type FAB (standard) Sure Solution 1001017.1 : Mirrored 73GB and 146GB disk drives on Sun Fire V20z/V40z systems may be exposed to a drive compatibility issue when a drive is replaced.
PreviouslyPublishedAs 201343 Product Sun Fire V20z Server Sun Fire V40z Server Bug Id <SUNBUG: 6477361> Date of Resolved Release 13-JUN-2007 Impact Disk mirroring can not be recreated when the replacement drive is smaller than the drive that was replaced. Smaller capacity drives do not have the data capacity of the larger hard drive. Contributing Factors If a RAID 1 Sun Fire V20z/V40z system has Fujitsu drives for both the primary and secondary drives and receives a Seagate drive as a FRU, the mirror cannot be recreated because the Seagate drive is slightly smaller than the Fujitsu. The issue is that both, Seagate and Fujitsu disks have the same X Option (X9256A) that is used when ordering these peripherals. Affected Xoptions: X-Option Description X9291A 73GB 15K Disk Drive X9291A-Z 73GB 15K Disk Drive, ROHS X4154A-Z 146GB 15K Disk Drive, ROHS X9257A 73GB 10K Disk Drive Affected Part Numbers: 370-6689 CRU, 73.4GB 10K, Mixed Vendor (non-RoHS FRU) 370-6689 FRU, Seagate, SCSI, 73GB 10K, non-RoHS 371-0292 FRU, Fujitsu, SCSI, 73GB 10K, non-RoHS 370-6905 CRU, SCSI, 146GB 10K, Mixed Vendor (non-RoHS FRU) 370-6905 FRU, Seagate, SCSI, 146GB 10K, non-RoHS 371-2564 FRU, Fujitsu, SCSI, 146GB 10K, non-RoHS 370-6941 CRU, 73.4GB 15K, Mixed Vendor (non-RoHS FRU) 371-2601 FRU, Seagate, SCSI, 73GB 15K, non-RoHS 371-2602 FRU, Fujitsu, SCSI, 73GB 15K, non-RoHS 371-1454 CRU, SCSI, 146GB 10K, Mixed Vendor (RoHS FRU) 371-1454 FRU, Seagate, SCSI, 146GB 10K, RoHS 371-2441 FRU, Fujitsu, SCSI, 146GB 10K, RoHS 371-1456 CRU, SCSI, 73GB 15K, Mixed Vendor (RoHS FRU) 371-2605 FRU, Seagate, SCSI, 73GB 15K, RoHS HDD 371-2525 FRU, Fujitsu, SCSI, 73GB 15K, RoHS HDD 371-1627 CRU, SCSI, 146GB 15K, Mixed Vendor (RoHS FRU) 371-2606 FRU, Seagate, SCSI, 146GB 15K, RoHS 371-2526 FRU, Fujitsu, SCSI, 146GB 15K, RoHS 371-1452 FRU, Seagate, SCSI, 73GB 10K, RoHS 371-1453 FRU, Fujitsu, SCSI, 73GB 10K, RoHS Symptoms # raidctl -c c1t0d0 c1t1d0 Cannot create RAID volume when primary disk is larger than secondary disk. Below is an example of attempting to replace a Fujitsu disk with a Seagate to an existing RAID array built using Hitachi disks. Time/Date has been removed from the output below for better formatting. va64-v20zd-gmp03 scsi: /pci@0,0/pci1022,7450@a/pci17c2,10@4 (mpt0): va64-v20zd-gmp03 Volume 0 target 0 is |missing| va64-v20zd-gmp03 scsi: /pci@0,0/pci1022,7450@a/pci17c2,10@4 (mpt0): va64-v20zd-gmp03 Volume 0 is |enabled||degraded| va64-v20zd-gmp03 scsi: /pci@0,0/pci1022,7450@a/pci17c2,10@4 (mpt0): va64-v20zd-gmp03 Volume 0 target 0 is |out of sync||missing| va64-v20zd-gmp03 scsi: /pci@0,0/pci1022,7450@a/pci17c2,10@4 (mpt0): va64-v20zd-gmp03 Volume 0 target 0 is |out of sync||online| va64-v20zd-gmp03 scsi: /pci@0,0/pci1022,7450@a/pci17c2,10@4 (mpt0): va64-v20zd-gmp03 Volume 0 target 0 is |out of sync||initializing| va64-v20zd-gmp03 scsi: /pci@0,0/pci1022,7450@a/pci17c2,10@4 (mpt0): va64-v20zd-gmp03 Volume 0 target 0 is |out of sync||online| va64-v20zd-gmp03 scsi: /pci@0,0/pci1022,7450@a/pci17c2,10@4 (mpt0): va64-v20zd-gmp03 Volume 0 target 0 is |out of sync||not compatible| # raidctl RAID RAID RAID Disk Volume Status Disk Status ------------------------------------------------------ c1t0d0 DEGRADED c1t0d0 FAILED c1t1d0 OK
Root Cause Seagate brand drives are smaller in capacity than Fujitsu drives (e.g. 146GB vs 147GB). When a system is initially setup with RAID on a Fujitsu disk drive, and then is later changed to a Seagate disk drive, the installation fails. If a Sun Fire V20z/V40z system has both Seagate and Fujitsu drives installed in a certain configuration, a mirror cannot be created. Mirroring is a fundamental feature of these platforms. These disks have the same Xoption and Part Number, so you cannot differentiate when ordering these parts. Furthermore, if a disk were to fail in an existing production array, replacement could only occur if the replacement disk is the same or of a larger capacity. New part numbers have been created for both Fujitsu and Seagate to differentiate between the two when ordering replacements. This corrective action was made available in Manufacturing via ECO# WO_33464 as of February 13, 2007. Corrective action was made available in Services via GSAP# 3834 as of March 6, 2007. Workaround No workaround available - reference Resolution section below
Resolution Field should replace like for like drives in a RAID environment. Seagate drives should be replaced with Seagate and Fujitsu drives should be replaced with Fujitsu. The below information shows the previous "mixed vendor" FRU/CRU and the new Seagate and Fujitsu specific FRU/CRU part numbers. 370-6941 CRU, 73.4GB 15K, Mixed Vendor (non-RoHS FRU) 371-2601 FRU, Seagate, SCSI, 73GB 15K, NON-ROHS 371-2602 FRU, Fujitsu, SCSI, 73GB 15K, NON-ROHS 371-1456 CRU, SCSI, 73GB 15K, Mixed Vendor (RoHS FRU) 371-2605 FRU, Seagate, SCSI, 73GB 15K, ROHS HDD 371-2525 FRU, Fujitsu, SCSI, 73GB 15K, ROHS HDD 371-1627 CRU, SCSI, 146GB 15K, Mixed Vendor (RoHS FRU) 371-2606 FRU, Seagate, SCSI, 146GB 15K, ROHS 371-2526 FRU, Fujitsu, SCSI, 146GB 15K, ROHS 371-1454 CRU, SCSI, 146GB 10K, Mixed Vendor (non-RoHS FRU) 371-2564 FRU, Fujitsu, SCSI, 146GB 10K, NON-ROHS 370-6905 FRU, Seagate, SCSI, 146GB 10K, NON-ROHS
Identification of Affected Parts (how to): Visually inspect disks prior to ordering a replacement. Order the correct part number by identifying the vendor on the disk. Modification History Date: 26-JUN-2007
Previously Published As 102966
Related Information
Internal Contributor/submitter Barry.Wright@Sun.COM Internal Eng Business Unit Group KE Authors Internal Eng Responsible Engineer Sej.Lim@Sun.COM, Chad.Amsler@Sun.COM Internal Services Knowledge Engineer Joe.Davis@Sun.COM Internal Escalation ID 1-19954974 Internal Kasp FAB Legacy ID 102966 Internal Sun Alert & FAB Admin Info Critical Category: Significant Change Date: 2007-06-21 Avoidance: Service Procedure Responsible Manager: Rhett.Brikovskis@Sun.COM Original Admin Info: WF - Initiated draft. - Joe 6/13/07 WF - completed draft & sending to Ext Rvw. - Joe 6/19/07 WF - moved affected xoptions and part numbers to Contributing Factors section. Added FRU p/n's as provided by Chad Amsler, and then Republished. - Joe 6/26/07 Attachments This solution has no attachment |
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