HP MSA P2000 (G3) Error – ‘Unwritable write-back cache data exists for a volume’
KB ID 0000817 Problem Seen on a G3 P2000 SAN, the client had also had an MSA70 shelf, which contained a failed array. I was removing the MSA and after the job, this error was getting logged. Unwritable write-back cache data exists for a volume (vdisk: unknown name, volume: unknown name, SN {Serial Number} it comprises {number}% of cache. Solution Essentially, there was data in the cache that needed writing to the array/vdisk, when it...
Dell PowerEdge – PERC RAID Card Importing / Using ‘Foreign’ Disks
KB ID 0000639 Problem I bought some SAS disks from eBay to go in my Power Edge 2900 Server, and scratched my head for a while trying to get the PERC RAID controller to use them. I could only see them marked as ‘Foreign’. Probably because they did not have their original config ‘wiped’ off them before I bought them. Solution 1. Boot the server, Press CTRL+R when prompted, then press ‘C’ to enter the...