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RAID 5 - How can I find disk with bad blocks?

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  • RAID 5 - How can I find disk with bad blocks?

    I have a RAID 5 setup using a perc 5/i raid card in a dell poweredge 1900 server. There are 3 disk. There are 2 partitions on the raid virtual disk. Using Acronis Disk Director, I shrank the d: partition successfully, and attempted to expand the c: partition. I got an error that the following error: "Partition with bad blocks cannot be resized"

    When I boot into the raid card manager, it shows all disk are online and no SMART errors. I've ran chkdsk, it took a long time and found a bunch of errors and I still get the same error message. I've ran chkdsk again and I don't get any more errors.

    How can I find out which disk is causing the problem?

  • #2
    Re: RAID 5 - How can I find disk with bad blocks?

    I am not familiar with the Dell tools available but I have used HD Tune Pro v5 on my RAID 5 setup on my home Server and know that it does recognise the RAID 1 and RAID 5 on my hardware. It may be worth checking out.
    1 1 was a racehorse.
    2 2 was 1 2.
    1 1 1 1 race 1 day,
    2 2 1 1 2

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    • #3
      Re: RAID 5 - How can I find disk with bad blocks?

      There's a tool in the OpenManage suite for HD diagnostics, I think it's Array Manager or something like that.

      Even if you are Out of Warranty (which I'm guessing you are with a PE1900) it's usually worth a call to Dell support, as in my experience they will help you up to the point of diagnosing faulty parts so they can quote for an out of warranty replacement (Not Cheap!).
      BSc, MCSA: Server 2008, MCSE, MCSA: Messaging, MCTS
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      Cruachan's Blog

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      • #4
        Re: RAID 5 - How can I find disk with bad blocks?

        So I made a full image of the disk using Acronis True Image, installed 3 new hard disks, rebuilt the raid, restored from my backup, then used Acronis Disk Director to resize the partitions.

        SAME THING!

        It let me shrink the D: partition, but when I tried to expand the C:\ partition, I got the same error message:
        Cannot reszie partitions with bad blocks

        So it's not the drives, what else can I do?

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        • #5
          Re: RAID 5 - How can I find disk with bad blocks?

          Originally posted by ingram View Post
          So I made a full image of the disk using Acronis True Image, installed 3 new hard disks, rebuilt the raid, restored from my backup, then used Acronis Disk Director to resize the partitions.

          SAME THING!

          It let me shrink the D: partition, but when I tried to expand the C:\ partition, I got the same error message:
          Cannot reszie partitions with bad blocks

          So it's not the drives, what else can I do?
          chkdsk /R

          10 char limit

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          • #6
            Re: RAID 5 - How can I find disk with bad blocks?

            Originally posted by wullieb1 View Post
            chkdsk /R

            10 char limit
            I ran chkdsk /r before and after

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            • #7
              Re: RAID 5 - How can I find disk with bad blocks?

              Originally posted by ingram View Post
              I ran chkdsk /r before and after
              Is it definitely showing 0kbs in bad sectors??

              Code:
              D:\>chkdsk /r
              The type of the file system is NTFS.
              Cannot lock current drive.
              
              Chkdsk cannot run because the volume is in use by another
              process.  Chkdsk may run if this volume is dismounted first.
              ALL OPENED HANDLES TO THIS VOLUME WOULD THEN BE INVALID.
              Would you like to force a dismount on this volume? (Y/N) y
              Volume dismounted.  All opened handles to this volume are now invalid.
              Volume label is Storage.
              
              CHKDSK is verifying files (stage 1 of 5)...
                13824 file records processed.
              File verification completed.
                150 large file records processed.
                0 bad file records processed.
                0 EA records processed.
                0 reparse records processed.
              CHKDSK is verifying indexes (stage 2 of 5)...
                14050 index entries processed.
              Index verification completed.
                0 unindexed files scanned.
                0 unindexed files recovered.
              CHKDSK is verifying security descriptors (stage 3 of 5)...
                13824 file SDs/SIDs processed.
              Security descriptor verification completed.
                113 data files processed.
              CHKDSK is verifying file data (stage 4 of 5)...
                13808 files processed.
              File data verification completed.
              CHKDSK is verifying free space (stage 5 of 5)...
                74360932 free clusters processed.
              Free space verification is complete.
              Windows has made corrections to the file system.
              
               488383487 KB total disk space.
               190843596 KB in 3247 files.
                    1480 KB in 115 indexes.
                       0 KB in bad sectors.
                   94679 KB in use by the system.
                   65536 KB occupied by the log file.
               297443732 KB available on disk.
              
                    4096 bytes in each allocation unit.
               122095871 total allocation units on disk.
                74360933 allocation units available on disk.
              
              D:\>

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              • #8
                Re: RAID 5 - How can I find disk with bad blocks?

                Have you looked to see if the firmware version of the RAID controller is up to the latest revision? Sometimes updating system files or apps can reveal older versions of BIOS or firmware. You should be able to read what level of firmware is on your RAID controller during a boot sequence, then compare that with the manufacturer's support site.

                Since you've replaced all the HDDs and simply restored data to them, but the same problem manifests, the RAID controller would seem to be the next logical step.
                *RicklesP*
                MSCA (2003/XP), Security+, CCNA

                ** Remember: credit where credit is due, and reputation points as appropriate **

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