Krzys wrote:
Sorry to bother you but something is not clear to me regarding this
process.. Ok, lets sat I have two internal disks (73gb each) and I am
mirror them... now I want to replace those two mirrored disks into one
LUN that is on SAN and it is around 100gb. Now I do meet one requirement
of having more than 73gb of storage but do I need only something like
73gb at minimum or do I actually need two luns of 73gb or more since I
have it mirrored?
You can attach any number of devices to a mirror.
You can detach all but one of the devices from a mirror. Obviously, when
the number is one, you don't currently have a mirror.
The resulting logical size will be equivalent to the smallest device.
My goal is simple to move data of two mirrored disks into one single SAN
device... Any ideas if what I am planning to do is duable? or do I need
to use zfs send and receive and just update everything and switch when I
am done?
or do I just add this SAN disk to the existing pool and then remove
mirror somehow? I would just have to make sure that all data is off that
disk... is there any option to evacuate data off that mirror?
The ZFS terminology is "attach" and "detach" A "replace" is an attach
followed by detach.
It is a good idea to verify that the sync has completed before detaching.
zpool status will show the current status.
-- richard
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