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Want to change RAID setup

I have a poweredge server that came from Dell with 5 virtual disks setup in a raid 5 (8 physical.)
This system does not have an optical disk so I would prefer to not have to reload the OS but I wanted to remove 4 of the virtual disks and combine them into one virtual disk with either Raid 5 or 6.
If I delete the virtual disks 1-4 but leave the virtual disk 0 (where the OS resides) will I still need to re-load the OS?
7 answers Last reply Best Answer
More about change raid setup
  1. um, if you have raid 5, would the OS be stripped across all your virtual disks?
  2. vmem said:
    um, if you have raid 5, would the OS be stripped across all your virtual disks?


    That's a good question. I am not that familiar with raid setups. I see in PERC that I can delete the VD but they are all part of Disk Group 0. In every setup screen for the 5 virtual disks all 8 drives are listed.
  3. Your RAID is setup across all 8 Drives, in order to remap the setup in any way you would need to 'break' the RAIDs and start over from scratch last I am aware.

    Check here for more details about the arrangement http://en.wikipedia.org/wiki/RAID
  4. jconnerfoto said:
    vmem said:
    um, if you have raid 5, would the OS be stripped across all your virtual disks?


    That's a good question. I am not that familiar with raid setups. I see in PERC that I can delete the VD but they are all part of Disk Group 0. In every setup screen for the 5 virtual disks all 8 drives are listed.


    can you give us the model of the server you have? I suspect there's a lot more than a simple RAID 5 array going on. it's also possible that the OS is backed up on a single drive somewhere...
  5. vmem said:
    jconnerfoto said:
    vmem said:
    um, if you have raid 5, would the OS be stripped across all your virtual disks?


    That's a good question. I am not that familiar with raid setups. I see in PERC that I can delete the VD but they are all part of Disk Group 0. In every setup screen for the 5 virtual disks all 8 drives are listed.


    can you give us the model of the server you have? I suspect there's a lot more than a simple RAID 5 array going on. it's also possible that the OS is backed up on a single drive somewhere...

    Sure,
    It is a Dell Poweredge R510 Rack Server.
  6. Best answer
    hmm, unfortunately all the Dell website will tell me is "there is an array of RAID options" lol. and I'm unfamiliar with the system :(

    anyways, it sounds like you have a hardware raid 5 combining 8 drives, which is then further split into 5 virtual drives (for the sake of organization or whatever). IF that is the case, then as long as you leave virtual volume 0 alone, you can do whatever you want with the remaining volumes (keep in mind the OS's ability to recognize larger drive sizes etc if you're combining them all) :)
  7. vmem said:
    hmm, unfortunately all the Dell website will tell me is "there is an array of RAID options" lol. and I'm unfamiliar with the system :(

    anyways, it sounds like you have a hardware raid 5 combining 8 drives, which is then further split into 5 virtual drives (for the sake of organization or whatever). IF that is the case, then as long as you leave virtual volume 0 alone, you can do whatever you want with the remaining volumes (keep in mind the OS's ability to recognize larger drive sizes etc if you're combining them all) :)

    Thanks!
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