We are focused on filesystems as the (software) users of
partition bound block device specials in _these_ days.
But the main aim of my LVM has been to get a more flexible block
device special layer for _ANY_ software to use it and to get rid of the
close coupling to classic partitions!
LVM gives the SysAdmin the possibility to add/remove disks on the fly
and even to move data around between disks _online_.
With the move feature we are able to handle frees of old, slow or small disks
to remove them from the system.
With this feature we can (pro)act against performance bottlenecks.
The LVM cares about disk address changes caused by later installed disks;
the logical volume using software (filesystem ...) doesn't have to care!
IMHO we should go the modular unix way of letting one component present
services/features etc. to (many) others.
Opinions welcome!
BTW: I am aware, that we have to let the software that uses the block special
do all necessary data/metadata restructuring.
(We wouldn't discuss about letting scsi middle layer doing this,
would we ? ;-) )
Ted Tso talked about an available offline ext2 resizer
at Linux Kongress Cologne which should be available from powerquest
for partition magic licence holders.
(BTW Ted: i didn't find it there ;-) )
Regards, Heinz
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