tankman1989
Active Member
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I am creating a software RAID 5 array and I am getting a strange output response from the create array command. It is listing the sizes of the partitions available and it is not correct at all. I have 5 500GB drives as listed in the Fdisk -l command below and they all appear to have the same number of blocks and the disk sizes are all listed the same. I just created the partitions in Fdisk and all the disks were empty. Can anyone tell me what is going on here?
The create command is at the bottom of the code.
The create command is at the bottom of the code.
Continue creating array?Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 1 60801 488384001 fd Linux raid autodetect
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x07df3ce0
Device Boot Start End Blocks Id System
/dev/sdb1 1 60801 488384001 fd Linux raid autodetect
Disk /dev/sdc: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0008c8f9
Device Boot Start End Blocks Id System
/dev/sdc1 1 60801 488384001 fd Linux raid autodetect
Disk /dev/sdd: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x3bf537ab
Device Boot Start End Blocks Id System
/dev/sdd1 1 60801 488384001 fd Linux raid autodetect
Disk /dev/sde: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x44fdfe06
Device Boot Start End Blocks Id System
/dev/sde1 1 60801 488384001 fd Linux raid autodetect
Disk /dev/sdf: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000a4906
root@fserve:/home/mike# mdadm --create --verbose /dev/md0 --level=5 --raid-devices=5 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1
mdadm: layout defaults to left-symmetric
mdadm: chunk size defaults to 512K
mdadm: layout defaults to left-symmetric
mdadm: layout defaults to left-symmetric
mdadm: /dev/sda1 appears to contain an ext2fs file system
size=488384000K mtime=Fri Mar 23 00:52:34 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdb1 appears to contain an ext2fs file system
size=8032468K mtime=Fri Mar 23 00:55:34 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdc1 appears to contain an ext2fs file system
size=24097468K mtime=Fri Mar 23 00:55:50 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdd1 appears to contain an ext2fs file system
size=488384000K mtime=Fri Mar 23 00:56:01 2012
mdadm: layout defaults to left-symmetric
mdadm: size set to 488382464K
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