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Hello, list, |
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|
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Recently, one of our servers has been crashed because of some harddisk |
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problem. In several days before, the hd speed of this server become a little |
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slow than usual. And yesterday, during some basic operations on the server, |
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such as "ls", "cp", "ifconfig". Suddenly, there appeared a I/O error, then |
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the server died. |
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|
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The RAID controller is: |
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0000:02:03.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID (rev |
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01) |
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And there are a RAID-5 logical disk via three 146G SCSI physical disks. |
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|
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After boot the server, we have entered the RAID controller BIOS, found all |
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the physical disks has been the "FAILED/OFFLINE" situation. Then we forced |
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the status of HD to ONLINE status. |
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Then we boot the system via a KNOPPIX cd, and the partition table detected |
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by fdisk look likes: |
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|
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root@4[root]# fdisk -l |
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Warning: ignoring extra data in partition table 5 |
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Warning: ignoring extra data in partition table 5 |
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Warning: ignoring extra data in partition table 5 |
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Warning: invalid flag 0xffffaa0a of partition table 5 will be corrected by |
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w(rite) |
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|
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Disk /dev/sda: 293.6 GB, 293628542976 bytes |
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255 heads, 63 sectors/track, 35698 cylinders |
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Units = cylinders of 16065 * 512 = 8225280 bytes |
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|
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Device Boot Start End Blocks Id System |
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/dev/sda1 * 1 13 104391 83 Linux |
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/dev/sda2 14 650 5116702+ 83 Linux |
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/dev/sda3 651 1287 5116702+ 83 Linux |
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/dev/sda4 1288 35698 276406357+ 5 Extended |
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/dev/sda5 ? 1675 2071 3177836+ dd Unknown |
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In fact, there should be sda5 and sda6, i guess cylinder 1289-1675 should be |
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the sda5 - swap partition. And the rest should be the sda6. |
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|
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The first three partitions could mounted successfully, and sda contained NO |
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data which should be the boot partition. But sda2 and sda3 which should be |
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root partition and /var partition contained NO data too, but there are so |
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many files in the folder "lost+found". |
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|
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We have used GUI parted, parted, testdisk, gpart and some other disk detect |
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tools to the scan the disk and try to find out the correct partition tables, |
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but no results. |
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|
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So i post this problem here to ask for some advices. |
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Could someone pick me up? |
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|
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Thanks in advance. |
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|
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Penghui Wang. |
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-- |
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Wang Penghui |
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http://www.extmail.org |
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http://www.postfix.org.cn |
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