RAID drive

[GrimR]

I have a server who's purpose is a backup of AD, run anti virus and a couple of backups.
I had RAID 1 and RAID 5. RAID one crashed completely yes both disks dead, I knew it was coming but management won't believe it till it's dead. [I sent them screen shots everyday, even pictures don't help] Anyway bought two new drives and reloaded and it is domain controller again. [same name IP everything].
The issue that has me confused is the RAID 5 was never touched and is hardware RAID and is in diskmgmt but showing as unallocated, why is that? What did happened to it.

MCITP:EA/SA, MCSE, MCSA, MCDBA, MCTS, MCP+I, MCP

 

[technome]

Odd, in 20 years of working with hardware raid 1 and raid 5 combos, I never had an issue with a raid 5 unallocated/or disappearance after a raid 1 failure and restoration. Very slim possibility it is an issue at the OS level, a util equal to the link will fix the format at the OS level, but sound like this issue is at the raid level...

http://www.diskinternals.com/ntfs-recovery/

Sounds like the raid 5 somehow has been initialized.
Might try...

http://www.data-recovery-software.net/

........................................
Chernobyl disaster..a must see pictorial

http://www.kiddofspeed.com/default.htm

 

[58sniper]

Was it, by chance, software RAID?

Pat Richard MVP
Plan for performance, and capacity takes care of itself. Plan for capacity, and suffer poor performance.

http://www.ucblogs.net/blogs/exchange/

 

[GrimR]

No hardware RAID, Dell server Ctrl + A enter RAID controller.
A friend of mine says

Im assuming you had hardware raid on the server, when you reinstalled the OS the raid controller lost connectivity and dumped the raid configs. Remember when Windows installs it detects raid controllers etc and tries to install them automatically

MCITP:EA/SA, MCSE, MCSA, MCDBA, MCTS, MCP+I, MCP

 

[technome]

..reinstalled the OS the raid controller lost connectivity and dumped the raid configs."
It do not happen this way. The hardware raid config in on the raid adapter and on the disks. Thankfully Microsoft's OS can not do damage to the configuration, it can not access the config. Lost connectivity or a scrambled driver would not cause a config loss.
58Snipers query as to software raid would explain the "unallocated" array, as Microsoft's software raid implementation just plain sucks and has caused great grief over it's existence. Perhaps the raid 5's individual disks were setup as raid 0s at the adapter level, then within Disk manager, each was setup as Dynamic, then an OS raid 5 was created with the individual raid 0 drives( I have seen it done ).

........................................
Chernobyl disaster..a must see pictorial

http://www.kiddofspeed.com/default.htm