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Other => Other => Topic started by: driftwood on August 05, 2016, 01:35:17 PM
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I have a dedicated server at Hetzner, one of the drives is faulty and although they will replace it I need still need remove the old drive from the array and insert the new drive into the existing array.
On the face of it this is not a difficult job but I've not done it before and I'm having trouble removing the drive from the array. I could continue trying but I fear I'll put in a crap command as I'm dyslexic . So would much prefer it if I could find someone who does this often (I have ten sites on the server).
Anyone with experience of doing this ? here a run down of the problem for anyone interested.
Software RAID:
Personalities : [raid1]
md0 : active raid1 sda1[0] sdb1[1]
16777088 blocks super 1.0 [2/2] [UU]
md3 : active raid1 sdb5[1]
1839216960 blocks super 1.0 [2/1] [_U]
bitmap: 11/14 pages [44KB], 65536KB chunk
md2 : active raid1 sdb3[1]
1073741632 blocks super 1.0 [2/1] [_U]
bitmap: 6/8 pages [24KB], 65536KB chunk
md1 : active raid1 sda2[0] sdb2[1]
524224 blocks [2/2] [UU]
unused devices:
Partition info:
Filesystem Size Used Avail Use% Mounted on
/dev/md2 1008G 20G 937G 3% /
tmpfs 16G 0 16G 0% /dev/shm
/dev/md1 496M 35M 436M 8% /boot
/dev/md3 1.7T 5.3G 1.6T 1% /home
Disk /dev/sdb: 3000.6 GB, 3000592982016 bytes
255 heads, 63 sectors/track, 364801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x798d3974
Device Boot Start End Blocks Id System
/dev/sdb1 1 2089 16777216+ fd Linux raid autodetect
/dev/sdb2 2089 2155 524288+ fd Linux raid autodetect
/dev/sdb3 2155 135829 1073741824+ fd Linux raid autodetect
/dev/sdb4 135830 364802 1839219160 f W95 Ext'd (LBA)
/dev/sdb5 135830 364802 1839217112+ fd Linux raid autodetect
Disk /dev/sda: 3000.6 GB, 3000592982016 bytes
255 heads, 63 sectors/track, 364801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xc93735b1
Device Boot Start End Blocks Id System
/dev/sda1 1 2089 16777216+ fd Linux raid autodetect
/dev/sda2 2089 2155 524288+ fd Linux raid autodetect
/dev/sda3 2155 135829 1073741824+ fd Linux raid autodetect
/dev/sda4 135830 364802 1839219160 f W95 Ext'd (LBA)
/dev/sda5 135830 364802 1839217112+ fd Linux raid autodetect
Disk /dev/md1: 536 MB, 536805376 bytes
2 heads, 4 sectors/track, 131056 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md2: 1099.5 GB, 1099511431168 bytes
2 heads, 4 sectors/track, 268435408 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md3: 1883.4 GB, 1883358167040 bytes
2 heads, 4 sectors/track, 459804240 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md0: 17.2 GB, 17179738112 bytes
2 heads, 4 sectors/track, 4194272 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
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you need to replace sda, if you already have done this then this shouldn't be any problem to do it again.
Also on the internet there are many tutorials for doing that
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you need to replace sda, if you already have done this then this shouldn't be any problem to do it again.
Also on the internet there are many tutorials for doing that
Well I was thinking I need to replace sdb !!
I haven't already done it, the last time I hadn't really setup the server so I just got them to change the drive and I started again. This is not the same server but I've only been using it it for 6 weeks.
At the moment I'm finding it difficult to remove the drives from the array.