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Thread: Cloning a Raid0 to a Raid5 array

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    Cloning a Raid0 to a Raid5 array

    we have a file server with a striped array for performance, on a dell poweredge with perc3 raid controller

    we'd like to add in 3 new drives and create a raid5 array with built in redundancy like our main server

    the problem seems to be transferring the current OS and files from our current striped array onto a newly created raid 5 array, then removing the original array completely leaving just the 3 drive raid5 in situ

    after asking two independent IT support companies we are getting different opinions on whether it can be done, has anyone got specific experience on this issue ?
    SG31G2 - E8600@4g - 4gig tracer - Raptor system for sale
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    Vive le pants! directhex's Avatar
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    • directhex's system
      • Motherboard:
      • MSI X99A Gaming 7
      • CPU:
      • Intel Core i7 5280k
      • Memory:
      • 32GiB ADATA DDR4
      • Storage:
      • Corsair Neutron XT 960GB
      • Graphics card(s):
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    Dell PERC controllers are rebadged LSI MegaRAID, so try LSI's website/manuals

    My gut instinct is to say "no, this is a backup/restore job"

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    Administrator Moby-Dick's Avatar
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    I'd say its not going to be easy - you probably can't even ghost the install onto the new array.
    I'd be tempted to go for a rebuild as well.

    as its a file server , you coupld probaly migrate files onto a removable drive / tapeset for the duration of the migration phase
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    Nox
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    • Nox's system
      • Motherboard:
      • Yes
      • CPU:
      • Yes
      • Memory:
      • Yes
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      • Yes
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    i'm sure my LSI logic megaraid would of let you do this, but really will depend on the controller you have.

    Nox

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    OK, kind of getting the picture here, is a raid0+1 system a viable alternative to get the redundancy we require ?

    and anyone know if a Dell Poweredge4600 with Perc 3d controller would support ?
    SG31G2 - E8600@4g - 4gig tracer - Raptor system for sale
    SX48P2-D - Q9650@3.6 - 8gig DDR3 - 128SSD - 9800GT
    Corsair 600T - DP67BG - I7 2600k - MSI GTX560Ti - C300 SSD - 2Tb WD - 16 gig ddr3


  6. #6
    Vive le pants! directhex's Avatar
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    • directhex's system
      • Motherboard:
      • MSI X99A Gaming 7
      • CPU:
      • Intel Core i7 5280k
      • Memory:
      • 32GiB ADATA DDR4
      • Storage:
      • Corsair Neutron XT 960GB
      • Graphics card(s):
      • MSI GTX 980 Gaming 4G Twin Frozr 5
      • PSU:
      • Corsair AX860i
      • Case:
      • NZXT H440
      • Operating System:
      • Ubuntu 17.10, Windows 10
      • Monitor(s):
      • Dell U2713HM
      • Internet:
      • FIOS
    0+1 gives N/2 disks' worth of space, and is redundant against failure from any 1 disk, or four specific pairs of disks (but not 2 other pairs)

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