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RAID-5

Discussion in 'Windows Server 2003 / 2008 / 2012 Exams' started by zimbo, Feb 12, 2006.

  1. zimbo
    Honorary Member

    zimbo Petabyte Poster

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    I understood all the material concerning disks but i just wanted to ask something cause i cant really do this in my lab.. lets say you have your three disks (20gb each) and we have a RAID-5 which will be 40Gb plus our parity.

    Now one morning i get see that one of the disk fails.. then what? what is the process of recovering the data using parity? lets start off by assuming i have a new 20gb drive in where the broken one was... by default its basic so how do i do about getting the RAID all up and running again and my data back?
     
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  2. d-Faktor
    Honorary Member

    d-Faktor R.I.P - gone but never forgotten.

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    any decent raid setup uses a hardware raid controller that allows for hot swappable disks. which means that while the system is still up and running you just remove the faulty disk, insert the new disk, and let it rebuild itself. peace of cake.
    if you have a software raid config inside windows, then you can also easily repair the volume. see: http://technet2.microsoft.com/WindowsServer/en/Library/33637922-ed94-4ef5-bfbd-5f04581090b21033.mspx
     
  3. amithchandran

    amithchandran New Member

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    you can fix a new 20 gb, use disk management and convert it to dynamic , while converting it will ask you to add to raid 5 . thats all . your drive will start working same as before.
     
  4. mojorisin

    mojorisin Kilobyte Poster

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    Would i be able to test this in a lab using 3 drives


    ie shut the machine down remove a drive and then start it up again with a new drive in place ? would it still rebuild ?
     
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  5. zimbo
    Honorary Member

    zimbo Petabyte Poster

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    yikes! that was a while back.. you initialize the new disk, convert it to dynamic then reactivate the disk and it should be all good! :biggrin
     
    Certifications: B.Sc, MCDST & MCSA
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  6. amithchandran

    amithchandran New Member

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    Depends on what raid you are using. If its a hardware RAID the yu must remove the affected Drive and Connect the new one. If its software then yu have to connect the drive then open diskmanager and convert the new disk to the dynamic and repair . Thats all . And if you have any provlem in doing that go to www.vmware.com and download the vmware workstation and practice the software raid in it.. Its not going to affect your lab server.
     
  7. Sandy

    Sandy Ex-Member

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    Normally I pull the dead disk and slip in a fresh one. Walk away get a coffee and watch it sync up. But I NEVER use software RAID 5 I always use a hardware implimentation.
     
  8. juice142

    juice142 Megabyte Poster

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    Thoughts on RAID 10 anyone?

    J.
     
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  9. Sandy

    Sandy Ex-Member

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    Define what RAID 10 is? I've seen at least two versions.
     
  10. juice142

    juice142 Megabyte Poster

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    Striping with parity and mirroring - I think! :blink

    J.
     
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  11. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    Two sets of mirrored drives, which are then striped.

    See this excelent article outlining the various RAID arrangements.

    Harry.
     
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  12. JohnBradbury

    JohnBradbury Kilobyte Poster

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  13. juice142

    juice142 Megabyte Poster

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    Wow, quite stunning H.

    Thanks for that. :thumbleft

    J.
     
    Certifications: BSc (Hons), A+, Network+
    WIP: 70-270, MCSA
  14. Boycie
    Honorary Member

    Boycie Senior Beer Tester

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    John,

    Welcome aboard, thanks for your link, appreciated :thumbleft
     
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  15. juice142

    juice142 Megabyte Poster

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    My sentiments entirely, thanks John! :thumbleft

    J.
     
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