[linux-lvm] RAID and LVM?
Paul Jakma
paul at clubi.ie
Mon Jul 26 00:12:17 UTC 1999
On Mon, 26 Jul 1999, Luca Berra wrote:
i checked alan cox's linux-2.2.10-ac12 pacth wich includes
a heavily modified raid and lvm0.6 patch.
i added my devfs patch
http://www.comedia.it/bluca/lvm/devfs-patch-v99.4-2.2.10-ac12.gz
and i was able to create and use a vg on a raid 1 device
cool! Tell me, how is md_make_request in md.c defined? The old way,
or the new way:
int md_make_request (struct buffer_head * bh, int rw)
this is what's been causing me problems.
todo: adding the diffs to the latest raid and lvm patches,
incremental diff for those can be found at
http://www.comedia.it/bluca/lvm/
checking autodetect, especially with both raid and
lvm loaded as modules. raid autorun happens before
and after initrd, now i need it during initrd.
i noticed lvm does autodetect based on partition ID. Raid does
aswell. So how can we do autodetection for LVM on RAID? The md device
won't have a partition id, and the underlying device will have to
have a RAID partition ID for RAID to autodetect it.
Can LVM check for some magic within each block device and use that to
decide whether a device is a PV or not?
Regards,
Luca
regards,
--
Paul Jakma
paul at clubi.ie http://hibernia.clubi.ie
PGP5 key: http://www.clubi.ie/jakma/publickey.txt
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