Isn't it ok use --assume-clean as file system is created again and should be able to retrieve the data for file system part of the disk ? Thanks, Marri -----Original Message----- From: Guy Watkins [mailto:linux-raid@xxxxxxxxxxxxxxxx] Sent: Wednesday, July 08, 2009 4:12 PM To: Tirumala Reddy Marri; linux-raid@xxxxxxxxxxxxxxx Cc: 'Dan Williams' Subject: RE: Question on RAID-5 using ADMA I think you are doing --assume-clean wrong. Anyway, if you are bypassing the parity build with --assume-clean then how can you expect it to work with a failed disk? } -----Original Message----- } From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid- } owner@xxxxxxxxxxxxxxx] On Behalf Of Tirumala Reddy Marri } Sent: Wednesday, July 08, 2009 5:38 PM } To: linux-raid@xxxxxxxxxxxxxxx } Cc: Dan Williams } Subject: Question on RAID-5 using ADMA } } Hi, } I am having issue with following sequence of steps. } } 1. Start raid-5 " mdadm -C /dev/md0 -f -z30000000 -c64 -l5 -n3 } /dev/sd[a-c] -assume -clean" } 2. mkfs.ext3 /dev/md0 } 3. mount /dev/md0 /mnt/tmpmnt } 4. mdadm -a /dev/md0 /dev/sdd (adding a spare disk) } 5. mdadm -f /dev/smd0 /dev/sda (fail disk /dev/sda) } } When I do ls -l /mnt/tmpmnt I am seeing the errors end of the email. } } --- } } EXT3-fs error (device md0): ext3_valid_block_bitmap: Invalid block } bitmap - block_group = 30, block = 983042 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983055, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983424, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983426, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983428, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983430, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983431, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983433, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983435, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983473, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983475, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983476, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983488, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983489, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983492, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983494, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983496, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983497, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983498, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983499, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983501, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983502, length 1 } EXT3-fs error (device md0): ext3_new_block: Allocating block in system } zone - blocks from 983503, length 1 } } } ------------ } Regards, } Marri } -- } To unsubscribe from this list: send the line "unsubscribe linux-raid" in } the body of a message to majordomo@xxxxxxxxxxxxxxx } More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html