Solved!
Go to SolutionInstalling windows 2012 R2 on Poweredge R900 with Raid
Hi,
I have installed Windorws 2012 R2 on my Poweredge R900 it has raid controller Perc 6/I with 5 SAS 300 GB HDD but i am not sure on what level of raid the OS installed. When I check the the disk manager C: drive shows 790 GB but as a Dell Virtual Disk shows 1.35 TB approx. Could any one please explain what level of raid the OS is on and how to check it.
Thanks
theflash1932
11 Legend
•
16255 Posts
1375
0
Posted April 7th, 2015 23:00
Install OMSA (OpenManage Server Administrator):
Go to Storage, PERC, Virtual Disks to see the RAID level.
theflash1932
11 Legend
•
16255 Posts
1375
0
Posted April 9th, 2015 08:00
Your system firmware is probably out of date. 2012 has native drivers for the PERC 6, but it requires a minimum firmware level. Update the BIOS, ESM/BMC, then PERC to see if that helps.
theflash1932
11 Legend
•
16255 Posts
1375
0
Posted April 8th, 2015 09:00
If you have 5x300GB disks in a RAID array, and the total size of the array is ~1.35TB, you can only have them in a RAID 0. Click on the RAID 0 to see the member disks - you will probably see only one virtual disk, you will probably see all 5 disks as members of that VD, and you will probably see 0GB of available space on each.
So, C: is 803GB ... what other partitions are there?
In RAID 0, if a disk fails, EVERYTHING is gone. You are almost guaranteed to have some data loss already. I would recommend you get a backup, wipe out your RAID 0 and configure a larger RAID 5 (or 6 would be better).