On Wed, 6 Apr 2011, Jonathan Tripathy wrote:
pvcreate /dev/hdb7
vgextend /dev/hdb7
Then, every time I create a new customer LV, I would do:
lvcreate -nNewCustomerLV -L20G vg0 /dev/md3
Then, every time I wanted to create a snapshot:
lvcreate -L20G -s -n data_snap /dev/vg0/NewCustomerLV /dev/hdb7
Is that correct? No Leakage? And no zeroing needed?
Correct. Except vgextend needs to specify a VG. And you still need to zero a
customer LV before removing it. The PV reserved for snapshots approach only
avoids the need to zero snapshots.
I wonder if there is an elegant way to automate things like this via
"allocation policies" or similar in the metadata.
--
Stuart D. Gathman <stuart@bmsi.com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.
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