Hi Rajesh,
1. If you want to mirror 6 partitions, you'll have to make 6 RAID
devices, md0..md5. Use hda1+hdb1 for md0, hda2+hdb2 for md1, etc.
2. Once you've made a RAID device, you cannot access the underlying
partitions directly. So if you've combined hda1 and hdb1 into md0,
you cannot mount hda1 and/or hdb1 individually; you can only mkfs,
fsck and mount md0. It is /not/ possible to create a file on the
first hdd and then start RAID and then see if the file exists on the
second HDD.
3. If you want to check that RAID is working, remove one of the disks
while the system is running (if you have hot-pluggable disks). The
system should continue working and the files on the RAID partition
should still be accessible.
Hope this clarifies.
Regards,
-- Raju
>>>>> "Rajesh" == Rajesh Fowkar <[EMAIL PROTECTED]> writes:
Rajesh> Hi Nikhil, What I have got are 2 Hard Disks of 9GB each
Rajesh> and I want to mirror the contents of first HDD on to the
Rajesh> second one. I have got 6 partitions on my first HDD and I
Rajesh> have created 6 partitions of similar size on my second
Rajesh> HDD.
Rajesh> This stuff is not yet clear to me. Can you point out me to
Rajesh> any link on info on configuring raid. I have already gone
Rajesh> through HOWTO and documentation of raidtools but that has
Rajesh> increased my confusion further.
Rajesh> The main thing is to check whether raid is working say by
Rajesh> creating a file on 1st HDD and mounting the raid partition
Rajesh> and checking whether the same file exists on it. Than only
Rajesh> I can be sure that raid is working fine. Isn't it ?
Rajesh> Thanks
Rajesh> Regards
Rajesh> Rajesh
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