On 5/18/07, Sibastien Colmant <[EMAIL PROTECTED]> wrote:
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after reading some more on ccdconfig, just on the top of my head it
doesnt seems to allow moving data block from on physical or logical
volume to another for example.
when i m saying volume management i m encompassing more than
concatenating disks or partitions, i need to be able to move data
around, resize dynamically add and / or remove disks and or partitions
without the user having to endure downtime.
note that i m not saying that ccd is not a valid package, i m just
saying that it seems to be a bit limited.
for instance, i'm looking at
http://tldp.org/HOWTO/LVM-HOWTO/reducelv.html to shrink a volume.
it's not done online. other sections that talk about an online
operation like pvmove all say it either can cause data loss or is
unstable. it's also highly filesystem dependent. ffs cannot be
resized online, so it hardly matters what a volume manager would be
capable of.
