+ Post New Thread
Page 1 of 2 12 LastLast
Results 1 to 15 of 17
Hardware Thread, Failed HDD, now working, do I trust it? in Technical; Ive had a server HDD fail in raid 5. I removed it, cleaned and checked it and re-installed. Its now ...
  1. #1

    CHR1S's Avatar
    Join Date
    Feb 2006
    Location
    Birmingham
    Posts
    4,389
    Thank Post
    1,489
    Thanked 439 Times in 286 Posts
    Rep Power
    195

    Failed HDD, now working, do I trust it?

    Ive had a server HDD fail in raid 5.
    I removed it, cleaned and checked it and re-installed. Its now happily rebuilding and seems ok.
    There are no recorded errors (Media and Pre Fail)

    Do I just leave it and see how it goes?

  2. #2


    Join Date
    Mar 2009
    Location
    Leeds
    Posts
    6,233
    Thank Post
    218
    Thanked 813 Times in 695 Posts
    Rep Power
    274
    ive never had one fail and be reusable for long in my experience if it lasts much past rebuilding youre doing well and in 1 case recently got to 90%ish rebuilt and took the server down until it was pulled out

  3. Thanks to sted from:

    CHR1S (7th November 2012)

  4. #3

    CHR1S's Avatar
    Join Date
    Feb 2006
    Location
    Birmingham
    Posts
    4,389
    Thank Post
    1,489
    Thanked 439 Times in 286 Posts
    Rep Power
    195
    I will keep everything crossed then! haha

  5. #4


    Join Date
    May 2009
    Posts
    2,502
    Thank Post
    200
    Thanked 636 Times in 487 Posts
    Rep Power
    230
    Quote Originally Posted by CHR1S View Post
    Ive had a server HDD fail in raid 5.
    I removed it, cleaned and checked it and re-installed. Its now happily rebuilding and seems ok.
    There are no recorded errors (Media and Pre Fail)

    Do I just leave it and see how it goes?
    I'd take a view dependent on what it is being used for. We have some NAS type devices used as part of the backup (prior to tape), if it was one of them I'd probably be happy to take the risk. On our main SAN, degrading the array has a performance impact on rebuild and I'd want to avoid that. Worse, a disc that is dodgy but not being failed by the RAID controller (i.e. subject to retries) can have an ongoing impact on performance - again, I'd want to avoid that on our primary storage.

  6. Thanks to pcstru from:

    CHR1S (7th November 2012)

  7. #5
    apeo's Avatar
    Join Date
    Sep 2005
    Location
    Lost
    Posts
    1,612
    Thank Post
    95
    Thanked 115 Times in 111 Posts
    Rep Power
    41
    To be fair its 50/50 for me on how successful it rebuilds or not but those that did rebuild lasted quite a while. Guess you have to weigh how critical the data and the server is, then decide if its worth the potential risk that this disk will potentially fail in tandem with another.

  8. 2 Thanks to apeo:

    CHR1S (7th November 2012)

  9. #6

    CHR1S's Avatar
    Join Date
    Feb 2006
    Location
    Birmingham
    Posts
    4,389
    Thank Post
    1,489
    Thanked 439 Times in 286 Posts
    Rep Power
    195
    Its the servers main storage, but, its backed up twice and in a DFS.

  10. #7

    elsiegee40's Avatar
    Join Date
    Jan 2007
    Location
    Kent
    Posts
    10,082
    Thank Post
    1,683
    Thanked 2,029 Times in 1,501 Posts
    Rep Power
    674
    Given that it's part of a RAID array, it's failure shouldn't be a disaster as, in theory, the server will keep going.

    It is, however, a warning. It could well die permanently and the other drives could well be on the verge of failure too... or they could march on for years... there is absolutely no way of telling.

    Losing one drive with RAID is not a problem, losing two potentially is. Personally I'd replace the drive and keep this one as an emergency spare to tide you through should you have a permanent failure on another drive.

  11. Thanks to elsiegee40 from:

    CHR1S (7th November 2012)

  12. #8
    apeo's Avatar
    Join Date
    Sep 2005
    Location
    Lost
    Posts
    1,612
    Thank Post
    95
    Thanked 115 Times in 111 Posts
    Rep Power
    41
    Quote Originally Posted by CHR1S View Post
    Its the servers main storage, but, its backed up twice and in a DFS.
    When you say its a DFS, is it replicated? Given you have backups and if it is replicated then guess it isn't an issue. Personally I'd go the same route as elsiegee40, and replace the drive if I could, using the potential failing one as a spare. I'd do that just so I didnt have the hastle of rebuilding a server.

  13. Thanks to apeo from:

    CHR1S (7th November 2012)

  14. #9

    CHR1S's Avatar
    Join Date
    Feb 2006
    Location
    Birmingham
    Posts
    4,389
    Thank Post
    1,489
    Thanked 439 Times in 286 Posts
    Rep Power
    195
    Yes its a replicated DFS, im erring on the side of caution now too!

  15. #10

    CHR1S's Avatar
    Join Date
    Feb 2006
    Location
    Birmingham
    Posts
    4,389
    Thank Post
    1,489
    Thanked 439 Times in 286 Posts
    Rep Power
    195
    Rebuilt and passed its tests with no issues. Will watch it like a hawk! haha

  16. #11


    Join Date
    Dec 2005
    Location
    In the server room, with the lead pipe.
    Posts
    4,538
    Thank Post
    271
    Thanked 752 Times in 590 Posts
    Rep Power
    218
    I wouldn't have done - I'd have let it rebuild on the spare and phone $vendor for a replacement disk. First-line may quibble about testing the disk...second-line won't.

  17. Thanks to pete from:

    CHR1S (7th November 2012)

  18. #12
    gshaw's Avatar
    Join Date
    Sep 2007
    Location
    Essex
    Posts
    2,606
    Thank Post
    154
    Thanked 205 Times in 190 Posts
    Rep Power
    64
    I'd swap that out, especially if it's under warranty... better safe than sorry imo

  19. Thanks to gshaw from:

    CHR1S (7th November 2012)

  20. #13

    jinnantonnixx's Avatar
    Join Date
    Mar 2011
    Location
    In the Calamatorium.
    Posts
    1,826
    Thank Post
    104
    Thanked 449 Times in 308 Posts
    Blog Entries
    2
    Rep Power
    262
    It's let you down once already. Why do you think it won't let you down again? You've had your warning!

  21. Thanks to jinnantonnixx from:

    CHR1S (7th November 2012)

  22. #14

    Join Date
    Feb 2008
    Location
    Wiltshire
    Posts
    862
    Thank Post
    273
    Thanked 130 Times in 110 Posts
    Blog Entries
    26
    Rep Power
    39
    Usually the first thing HP Support get you to do if you have an orange light flag up on your drive cage; remove from cage and plug back in again. If it stays orange then they try and get you to run further tests, but at that point I usually stamp my feet and demand a new hard drive. Watch it; like a hawk.

    Pete

  23. Thanks to FragglePete from:

    CHR1S (7th November 2012)

  24. #15

    twin--turbo's Avatar
    Join Date
    Jun 2012
    Location
    Carlisle
    Posts
    2,334
    Thank Post
    1
    Thanked 381 Times in 340 Posts
    Rep Power
    149
    Done pull - push - rebuilds many times and disks have either not rebuilt, died soon after or lasted for years.

    It all depends on why it droped out of the array in the first place.

    Have a spare on the shelf or as a assigned hot spare.


    Rob

  25. Thanks to twin--turbo from:

    CHR1S (7th November 2012)

SHARE:
+ Post New Thread
Page 1 of 2 12 LastLast

Similar Threads

  1. Replies: 9
    Last Post: 22nd August 2011, 09:52 AM
  2. How far do you travel to work, how long does it take?
    By jonny_2010 in forum Educational IT Jobs
    Replies: 137
    Last Post: 13th July 2011, 05:54 PM
  3. Google images do you block it?
    By jumpinjamez in forum How do you do....it?
    Replies: 43
    Last Post: 17th March 2008, 08:34 AM
  4. Pinnacle Studio 10 - how do you deploy it?
    By tarquel in forum Windows
    Replies: 8
    Last Post: 21st February 2007, 04:53 PM
  5. failed redundancy - what to do?
    By browolf in forum Hardware
    Replies: 3
    Last Post: 2nd November 2005, 08:59 AM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •