Specifications

6-16 Sun StorEdge A1000 and A3x00/A3500FC Best Practices Guide • November 2002
6.10 Data Corruption and Known Problems
■ Fujitsu 4/9-GB disk drive firmware 2848 has a bug and should be replaced using
patch no. 108873.
■ Turning power off a disk tray when using a RAID Manager version prior to 6.22.
Although this is not supported it can be done accidentally. See bug 4307641.
RAID Manager 6.22 with firmware 3.1.x has a fix for this problem.
■ RAID Manager 6.0 with firmware 2.4.x doesn’t properly handle internal memory
failures completely. It has been EOL’ed. Upgrade to at least RAID Manager 6.1.1
upgrade 2 immediately.
■ Removing a controller after a power failure, in which cached data blocks are held
on the controller.
■ A single point of failure is created if cache mirroring is disabled while write-cache
is enabled. Don’t use this combination. If the controller with a cached write block
fails, then the data is lost as described in “Cache Mirroring” on page 3-6.
■ If an entire A3x00 disk array is powered down and VERITAS File System (VxFS)
doesn’t automatically disable the file systems on the array, then those files need to
be manually disabled or data corruption will occur. See bug 4326273.
■ There are also problems in the isp driver that can cause data corruption so isp
patch levels should be maintained, see bug 4113677.
■ There is an E10000 software problem with caching; upgrade Solaris 2.6 to patch
no. KU-20.
■ There are potential data corruption issues in RAID Manager 6.0, 6.1, and 6.1.1
firmware when failover occurs. Make sure that patch no. 106513-4 at least is
installed. See bug 4293936.
Note – Patch no. 106513-4 is not compatible with RAID Manager 6.0/6.1. Upgrade
to at least RAID Manager 6.1.1Upgrade 2.
■ An error message with ASC/Q 0c/00 may appear to indicate data loss, but
doesn’t in reality. See bug 4124793.