[Clonezilla-live] Clonezilla + software RAID question.

[albinootje <alb...@gm...>]

Hi,

According to this :
http://drbl.sourceforge.net/faq/fine-print.php?path=./2_System/65_Clonezilla_support_RAID.faq

Clonezilla does not support software RAID, but can someone provide some
more details why not ?

If I look at my software RAID 1 setup, I can still see the separate
device file descriptors :

# ls -la /dev/sda*
brw-rw---- 1 root disk 8, 0 2009-08-08 00:54 /dev/sda
brw-rw---- 1 root disk 8, 1 2009-08-08 00:54 /dev/sda1
brw-rw---- 1 root disk 8, 2 2009-08-08 00:54 /dev/sda2
brw-rw---- 1 root disk 8, 3 2009-08-08 00:54 /dev/sda3
brw-rw---- 1 root disk 8, 4 2009-08-08 00:54 /dev/sda4

# cat /proc/mdstat
Personalities : [raid1]
md2 : active raid1 sda4[0] sdb4[1]
      437506112 blocks [2/2] [UU]

md1 : active raid1 sda3[0] sdb3[1]
      48829440 blocks [2/2] [UU]

md0 : active raid1 sda1[0] sdb1[1]
      96256 blocks [2/2] [UU]

unused devices: <none>

What would go wrong if I would use clonezilla to make a clone of one of
the two disks,
by pointing it to the /dev/sda (etc.), and restore it on another (new) disk,
and let the software RAID 1 sync with yet another disk later on ?


# time dd if=/dev/sda1 of=sda1-test count=100 bs=16k
100+0 records in
100+0 records out
1638400 bytes (1.6 MB) copied, 6.52774 seconds, 251 kB/s

real	0m6.575s
user	0m0.000s
sys	0m0.000s

# time dd if=/dev/md0 of=md0-test count=100 bs=16k
100+0 records in
100+0 records out
1638400 bytes (1.6 MB) copied, 0.0736687 seconds, 22.2 MB/s

real	0m0.316s
user	0m0.004s
sys	0m0.008s

# diff md0-test sda1-test
#

.... no difference between those two test files

TIA,
A.