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  • Repairing a "dead" RAID array

    Recently my wifes crafting system, which has a Promise Fasttrak TX4 2x40g RAID0 (Maxtor ATA100's), started giving her problems.

    While the cards bootup diagnostic showed it to be an intact array Win2K showed the contents of the array severely truncated with only its Audio folder present, and you couldn't open that folder at all. It basically acted as if one of the drives had an error.

    No mix of Win2K, Norton or other tools could fix the problem, which became very frustrating very fast given she had a lot of active projects on the array.

    Things were getting ugly and the heat was on you-know-who to fix things fast

    Maxtor's Powermax tool to the rescue!!

    Powermax can "see" the individual drives in a Promise RAID (haven't tried it on other makes yet) and run diagnostics on each separately. It extracts to a PC-DOS floppy that runs at bootup.

    As it turns out the drive on the secondary master had an error which Powermax found and fixed. I booted back into Win2K and as soon as I opened the RAID it was obvious Powermax had done its job. EVERYTHING was there and intact.

    The next move was to back-up all the files on her RAID0 over the network to my RAID5, format her RAID0 just for safeties sake and copy them back.

    I also copied them to DVD-RAM's just for safe keeping

    Maxtor says Powermax will work on any ATA drive of 500 megs or larger even though it's targeted to their Maxtor and Quantum products.

    One more permanent addition to the toolkit!!

    SEAGATE OFFICIAL SUPPORT Get the most out of all your data storage devices with how-to videos and articles, software downloads, technical support information, and data recovery services.


    Dr. Mordrid
    Last edited by Dr Mordrid; 15 November 2003, 15:39.
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  • #2
    Thanks for the tip

    Just curious here, but why did you set up a RAID0 array for your wife ? Did she really need it or was it just your itch ?

    Comment


    • #3
      She needed two things:

      1. capacity, and at the time I had two drives doing nothing but gather dust. A RAID's additive capacity gave her maximum contiguous capacity.

      2. speed because she also does video scrapbooks.

      Dr. Mordrid
      Dr. Mordrid
      ----------------------------
      An elephant is a mouse built to government specifications.

      I carry a gun because I can't throw a rock 1,250 fps

      Comment


      • #4
        but RAID0 is not very safe...

        Comment


        • #5
          Originally posted by Kurt
          but RAID0 is not very safe...
          Compared to what and in wich situation?
          If there's artificial intelligence, there's bound to be some artificial stupidity.

          Jeremy Clarkson "806 brake horsepower..and that on that limp wrist faerie liquid the Americans call petrol, if you run it on the more explosive jungle juice we have in Europe you'd be getting 850 brake horsepower..."

          Comment


          • #6
            Manufacturer's Diagnostics are always very handy
            Powermax (4.06) also happens to be on

            The Ultimate Boot CD (Freeware) ISO

            Hard Disk Diagnosis
            Drive Fitness Test (IBM/Hitachi) 3.50
            PowerMax (Maxtor/Quantum) 4.06
            Data Lifeguard (Western Digital) 10.0
            SeaTools Desktop (Seagate) 1.06.02
            Diagnostic Tool (Fujitsu) 6.10
            SHDIAG (Samsung) 1.25

            Hard Disk Management
            IBM/Hitachi Feature Tool 1.90
            Ranish Partition Manager 2.43
            AutoClave (HDD Wiper) 0.3
            Partition Resizer 1.3.4
            SavePart (Partition Saver) 2.70
            XFDISK (Extended FDISK) 0.9.3beta
            g4u (HDD Cloning) 1.12
            HDClone (Free Edition) 1.0
            TestDisk 4.4
            SPFDISK (Special FDISK) 2000-03k

            Memory Diagnosis
            Memtest86 3.0
            Windows Memory Diagnostic

            Linux-based Rescue Disks
            Offline NT Password & Registry Editor 030426
            Tom's Boot Disk 2.0.103
            Recovery Is Possible (RIP) 2.0
            BasicLinux 2.1

            Others
            F-Prot Antivirus for DOS (Personal use only) 3.14a
            Virus definition: 18 Oct 2003
            Includes read-only freeware version of NTFSDOS

            AIDA16 (System information) 2.08
            Active NTFS Reader for DOS 1.0.1
            Gujin (PC boot loader) 0.8
            Freesco 0.3.1


            another useful tool especially for those with RAID arrays would be DiskPatch (Paid)
            which supports both RAID 0 & 5

            Originally posted by Technoid
            Compared to what and in wich situation?
            compared to a single HDD or any other RAID level
            and all situations

            the MTBF of each drive is additive, and increases with stripe width
            plus the MTBF of the controller (which can be replaced)
            RAID 0 is for performance only, anything else is safer for storage
            Last edited by Ice Czar; 17 November 2003, 07:38.
            "Propaganda isn't what you tell people, It's what you don't tell them." William S. Paley founder CBS

            Comment


            • #7
              Even though RAID0 is less safe than say RAID5 etc. this is still the first failure of this type I've seen in the the several years I've been using Fasttraks. I will admit though that the FT SX-4000 RAID5 is where I store my important stuff.

              Dr. Mordrid
              Dr. Mordrid
              ----------------------------
              An elephant is a mouse built to government specifications.

              I carry a gun because I can't throw a rock 1,250 fps

              Comment


              • #8
                Dr. Mordrid: what driver version do you use for the SX4000? i've had problems with all others prior to the latest beta.
                They're too slow at boot under SBS2000 and some services timeout.
                nospam

                Comment


                • #9
                  Originally posted by Dr Mordrid
                  this is still the first failure of this type I've seen
                  I mod Data Storage over at [H]ardForums
                  where there is many a young n00b that
                  doesnt really comprehend the fragility of a HDD
                  and they shop for the cheapest deals
                  from less than diligent suppliers\shippers

                  and among them drive failures are relatively common
                  and dual channel onboard RAID0 is equally common
                  for gaming performance. And HDDs do fail even when they
                  have been properly handled and maintained.

                  That said Ive yet to loose one (that I bought new)
                  I find a dual channel RAID 0 to be an acceptable risk for storage provided backup is maintained regularly, but when wider stripes are employed the risk dramatically increases.

                  Like you I maintain my "storage" on a RAID 5
                  "Propaganda isn't what you tell people, It's what you don't tell them." William S. Paley founder CBS

                  Comment


                  • #10
                    Originally posted by tonny
                    Dr. Mordrid: what driver version do you use for the SX4000? i've had problems with all others prior to the latest beta.
                    They're too slow at boot under SBS2000 and some services timeout.
                    BIOS version 2.0.0.4
                    Driver version 1.2.0.9

                    I do NOT boot from the RAID5 since it's used purely for video storage. The OS is loaded from removable HDD's with one for editing (Win2K SP2), one for betatesting (multiboot Win2K SP2 & SP4 and WinXP) and one for "normal use".

                    Dr. Mordrid
                    Last edited by Dr Mordrid; 19 November 2003, 03:09.
                    Dr. Mordrid
                    ----------------------------
                    An elephant is a mouse built to government specifications.

                    I carry a gun because I can't throw a rock 1,250 fps

                    Comment


                    • #11
                      I'm running 1.01.16 Driver with no problems!

                      Although I am going to upgrade the driver/ bios now
                      Asus P4C800-E Deluxe, Pentium 4 3GHz, 2Gb DDRRAM, Gainward BLISS GeForce 7800 GS+ 512MB, Matrox TripleHead2Go Digital, 3x Iiyama 4637 18.1" TFTs, Audigy 2 ZS, Matrox RT.x100, Silentmaxx Acoustic Case

                      Comment


                      • #12
                        I had BIOS 1.01.0.15 installed... updated to 2.0.0.4 and the system locked after three "dots" on the detecting drives.

                        Put card in another machine and worked fine, but flashed BIOS to 1.02.0.5 to get system working again.
                        Asus P4C800-E Deluxe, Pentium 4 3GHz, 2Gb DDRRAM, Gainward BLISS GeForce 7800 GS+ 512MB, Matrox TripleHead2Go Digital, 3x Iiyama 4637 18.1" TFTs, Audigy 2 ZS, Matrox RT.x100, Silentmaxx Acoustic Case

                        Comment


                        • #13
                          Originally posted by Enak
                          I'm running 1.01.16 Driver with no problems!

                          Although I am going to upgrade the driver/ bios now
                          Even though I'm using the latest release drivers without problems I would strongly recommend you consider editing & computer rule #1:

                          IF IT AIN'T BROKE DON'T #$%^&*@ FIX IT !!

                          Win2k SP4 fixes a lot of bugs, but my rig works great with Win2k SP2. Which do you think I'm using?

                          Dr. Mordrid
                          Last edited by Dr Mordrid; 19 November 2003, 12:47.
                          Dr. Mordrid
                          ----------------------------
                          An elephant is a mouse built to government specifications.

                          I carry a gun because I can't throw a rock 1,250 fps

                          Comment


                          • #14
                            I know

                            I like fiddling too much!

                            I do get great satisfaction fixing something i broke... especially when it's not mine!
                            Asus P4C800-E Deluxe, Pentium 4 3GHz, 2Gb DDRRAM, Gainward BLISS GeForce 7800 GS+ 512MB, Matrox TripleHead2Go Digital, 3x Iiyama 4637 18.1" TFTs, Audigy 2 ZS, Matrox RT.x100, Silentmaxx Acoustic Case

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