VU Blog

Vuspace:

• We presented two solutions Xythos and Microsoft Windows cluster. We’re currently waiting on governance to see which path we head down.

Storage Management IP Migration:

• I am in the process of moving all of the management interfaces of our Storage environment to our admin network. This month the SAN directors were all moved successfully, next we’ll move the Clariions and a couple other interconnected machines. I am waiting on the Exchange servers.

Operational:

• The BlueArc suffered a parity error this month in one of the drives in a Raid 5 parity set. The apparent cause was a corruption written to the disk when a failed drive was replaced. The final fix was to find the specific disk the faulty parity data was written to and replace that disk with a new one. The rebuild from other disks caused the parity data to be regenerated fixing the issue. Our exposure during this was possible data loss if any drive, but the drive with the corrupted parity data failed.
• The HBA’s have been swapped out from Emulex to Qlogic cards in an attempt to fix the SCSI LUN reset errors that were causing drives to be automatically set offline. A reboot was required to repair this issue. Once since the upgrade we have had tape drives automatically disable, but it was not due to a SCSI reset. We have not seen another reset since. We have identified and replaced a failed tape drive that was causing issues.
• Routine Clariion maintenance.
• Routine SAN maintenance.