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Old 01-08-2005, 01:20 PM   #1
cbonar
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Registered: Apr 2004
Location: Paris, FRANCE
Distribution: Kubuntu + Debian
Posts: 53

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Question Will RAID-1 sync changes made under another OS ?


Hi

I am setting up RAID-1 on my system with Mandrake 10.1 and Windows XP.
I have one disk containing all the data I want to replicate. This disk contains 2 partitions : my /home partition and the equivalent for Windows (D:).
I have another disk (same size, same vendor) that I want to use for the RAID-1.

My question is : if I use Linux to establish RAID-1 for the Windows (NTFS) partition too, and if I boot under Windows (where RAID-1 is obviously not active), and make some modifications to the files on D:, and then log back to Linux, will the RAID-1 be able to resynchronize with the new datas on D: (/dev/hdc2) ?

Of course, under Windows I would write to the disk corresponding to the main raid disk /dev/hdc, not the copy (/dev/hda).

------------------------

Disks configuration :
/dev/hdc
- - - - - - /dev/hdc1 : ReiserFS, /home, 58GB
- - - - - - /dev/hdc2 : NTFS, /mnt/ntboy, 53GB
/dev/hda
- - - - - - same disk than /dev/hdc

raidtools :
Using raidtools-0.90-13mdk.

/etc/raidtab :
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hdc1
raid-disk 0
device /dev/hda1
raid-disk 1

raiddev /dev/md1
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hdc2
raid-disk 0
device /dev/hda2
raid-disk 1

uname -a :
Linux dhcp-204-156 2.6.8.1-10mdksmp #1 SMP Wed Sep 8 16:41:52 CEST 2004 i686 Intel(R) Pentium(R) 4 CPU 3.00GHz unknown GNU/Linux
 
  


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