Hi.
I have two questions - details follow:
/1st/
Is he right that grub2 supports the assembly of an intel imsm
fakeraid/software-raid?
(see the *** MDADM-DETAILS *** below)
/2nd/
What raid levels are supported?
Especially: Can / Will a RAID-0 work with grub2?
*** THE-SITUATION ***
My Notebook came with 4 SSD drives (Sony VAIO)
and an intel fakeraid - imsm (intel matrix storage manager)
that is configured as RAID-0 on all 4 drives (which is neat for the speed).
For now I am trying to keep the dualboot with win7
-->
Linux supports this software-raid format either via mdadm >=v3 or via
device-mapper >=v1.
There is the mdraid grub module and - according to Kyron - it seems to
be possible to assemble an imsm RAID-1 with grub2, even though you would
need grub > v1.98:
http://wiki.neuralbs.com/index.php/Gentoo_Quick_Install_notes#GRUB2
What irritates me though is the fact that grep -irl imsm within the
grub2 source code shows nothing.
*** MDADM-DETAILS ***
mdadm creates /dev/md127 and /dev/md/imsm_0 as symlink to it.
mdadm --misc --detail /dev/md127 yields:
Version : imsm
Raid Level : container
Total Deviced: 5
Working Devices : 5
UUID : some-hash...
And lists the 4 drives: /dev/sda-d
mdadm then creates /dev/md126 and /dev/md/Volume0_0 as symlink to it
mdadm --misc --detail /dev/md126 yields:
Container : /dev/md/imsm_0, member 0
Raid Leel : raid0
Array Size : 500GB
Raid Devices : 4
Total Devices : 4
State : Clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Chunk Size : 128K
Thanks a lot for any hint in advance!
tormen
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