Channels on a server

Discussion in 'OT Technology' started by infinite loop, Jan 8, 2003.

  1. infinite loop

    infinite loop Statistically speaking, the Yankees do indeed suck

    Joined:
    Feb 13, 2001
    Messages:
    25,275
    Likes Received:
    0
    Location:
    La Crescenta, CA
    If I have a server with a controller with 2 internal channels, do I need a second controller or will the second channel take over if the first fails?
     
  2. Dommi

    Dommi Guest

    ide controllers are not commonly redundant.

    raid would make them redundant.
    IE
    mirroring the drives off of different controllers
     
  3. infinite loop

    infinite loop Statistically speaking, the Yankees do indeed suck

    Joined:
    Feb 13, 2001
    Messages:
    25,275
    Likes Received:
    0
    Location:
    La Crescenta, CA
    These will be scsi controllers
     
  4. Dommi

    Dommi Guest

    no
    Ill fetch proof
    :grumble:
     
  5. infinite loop

    infinite loop Statistically speaking, the Yankees do indeed suck

    Joined:
    Feb 13, 2001
    Messages:
    25,275
    Likes Received:
    0
    Location:
    La Crescenta, CA
    Ok, so I guess best practise then (regardless of ide or scsi) is to span a raid accross multiple controllers, regardless of how many internal channels the controllers have?
     
  6. Dommi

    Dommi Guest

  7. Dommi

    Dommi Guest

    ok
    I need sleep
    sorry
    arrogance level too high
     
  8. Dommi

    Dommi Guest

    but you can duplex over raid 1 or raid 5
     
  9. 5Gen_Prelude

    5Gen_Prelude There might not be an "I" in the word "Team", but

    Joined:
    Mar 14, 2000
    Messages:
    14,519
    Likes Received:
    1
    Location:
    Vancouver, BC, CANADA
    The benefit of two controllers is simply that you are not restricted to just being protected if a HD fails, you are also protected if the controller fails. But you should really understand what your requirements are before going down this road. If you're just worried about a pr0n collection, an extra HD is all you need with periodic backups. RAID is really good in a case where data is changing not only daily but by the second and the information CANNOT be lost.
     
  10. Rob

    Rob OT Supporter

    Joined:
    Jul 6, 2002
    Messages:
    88,630
    Likes Received:
    41
    Location:
    Atlanta, GA
    I have offsite backups for my pr0n. :bigthumb:
     
  11. infinite loop

    infinite loop Statistically speaking, the Yankees do indeed suck

    Joined:
    Feb 13, 2001
    Messages:
    25,275
    Likes Received:
    0
    Location:
    La Crescenta, CA
    This is for our organizations intranet. It's going to be a RAID 5 server, no doubt. At this point, we're trying to determine how many controllers to order with the server and our hardware people aren't around to answer my questions :)
     
  12. Dommi

    Dommi Guest

    well you can duplex raid six
    raid six is
    5+1
    or striping with parity and mirroring
    IE
    controller one has 4 disks
    1+2+3+4 are striped each disk is 1/4 occupied with a parity stripe.
    controller 2 is an exact mirror
    1+2+3+4 are striped each disk is 1/4 occupied with a parity stripe.
    if controller one fails, its mirror engages...

    (find the movie reference. :big grin: )
     

Share This Page