Mnemoic,  With the Raid 5 having gone offline due to going into a foreign configuration, you should have cleared the foreign. Now with the array as it is currently, what we will need to do to recover would be to boot to the Perc BIOS and "Retag" the array. To do so we will recreate the array as it was configured originally, but minus Initialization. If you were to initalize the array after configuring, it would delete the data. So what you will need to do is hit F2 from the main page. Select Create VD. From there configure the Raid 5 with the same drives. Once you configure, and DO NOT INITIALIZE the array, then you will power down the server. While offline, remove the drive that had failed. Once the original failed drive is removed, the power the server and see if it will boot to the OS normally.  If so, then I would suggest getting a complete backup of the data. After that then verify the Raid controller is current on firmware, and update if needed. Once that is complete then reinsert the failed drive and see if it rebuilds. If not then replace the drive.  Let me know if this helps.
Hi There, we have PowerEdge 2950 with ESX 3.5. Before our problem we have 4x750GB RAID 5 config. Week ago, we found that drive in slot 1 is failed, as always we remove it and replaced again, day after it's display that it's die. Ok, in PERC BIOS utility it was offline, day after we starting to backup data from ESX server, but during this process storage was gone from ESX server, after reboot PERC told us that there is no config on RAID and that it found foreign config. We open PERC BIOS utility and then import foreign config, but RAID level now is 10 (it's use disks 0,2,3) total storage size is 1,3 TB! We reboot server, ESX is up and running but storage with VMs is missed :( My questions is, can I delete current VD from PERC BIOS utility and create new VD with HDD 0,2,3 (1 is offline) RAID 5 without initialization? Any suggestions? Thank you!
PERC 6/i imported foreign configuration is incorrect