Hi all.
I'd like to replace two hd in raid1 with larger ones.
I could just add the new drives in raid1 and mount it on /opt after a
dump/restore, but I'd prefer to just have to drives instead of four..
less noise and less power consumption and noise.
The question is: what whould be the best way to go?
Tricks and tips? Drawbacks? Common errors?
Any hint/advice welcome.
Thank you. :-)
present HD: two WD caviar green 500GB
new HD: two WD caviar green 2TB
root@host1:~# uname -rms
Linux 2.6.32-46-server x86_64
root@host1:~# mdadm --version
mdadm - v2.6.7.1 - 15th October 2008
root@host1:~# cat /proc/mdstat
Personalities : [linear] [raid1] [multipath] [raid0] [raid6] [raid5]
[raid4] [raid10]
md1 : active raid1 sda2[0] sdb2[1]
7812032 blocks [2/2] [UU]
md2 : active raid1 sda3[0] sdb3[1]
431744960 blocks [2/2] [UU]
md0 : active raid1 sda1[0] sdb1[1]
48827328 blocks [2/2] [UU]
unused devices: <none>
root@host1:~# parted /dev/sda print
Model: ATA WDC WD5000ABPS-0 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 50.0GB 50.0GB primary ext4 boot, raid
2 50.0GB 58.0GB 8000MB primary linux-swap(v1) raid
3 58.0GB 500GB 442GB primary ext4 raid
root@host1:~# parted /dev/sdb print
Model: ATA WDC WD5000ABPS-0 (scsi)
Disk /dev/sdb: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 50.0GB 50.0GB primary ext4 boot, raid
2 50.0GB 58.0GB 8000MB primary linux-swap(v1) raid
3 58.0GB 500GB 442GB primary ext4 raid
root@host1:~# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/md0 48060232 6460476 39158392 15% /
none 3052888 272 3052616 1% /dev
none 3057876 0 3057876 0% /dev/shm
none 3057876 88 3057788 1% /var/run
none 3057876 0 3057876 0% /var/lock
none 3057876 0 3057876 0% /lib/init/rw
/dev/md2 424970552 399524484 3858820 100% /opt
Thank you and best regards.
Robi
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