robert.ho...@allatnet.de wrote:
Hi there,
i'm building a small NAS with 5x1TB Disks. The disks contains at the moment
some data, ntfs as the fs and aren't a raid.
Now my im wondering if its possible to add the parity later. So that i add step
by step one disk to the pool. And when i add the last disk, i enable the parity.
(i have only one another 1 tb disk to backup the files)
Thank you for you replies and sorry for my bad english.
Robert Hoppe
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You can cheat this was:
create the pool as a raidz1 with 4 1TB disks and a file:
e.g.
# mkfile -n 900g /some/path/here
(make sure the size of this file is SMALLER than your disks, though not
much smaller)
this will give you a sparse file on /some/path/here
# zpool create tank raidz1 c0t0d0 c0t1d0 c0t2d0 c0t3d0 /some/path/here
what you do next is fail the "file" device
# zpool offline tank /some/path/here
This will result in a degraded RAIDZ1 pool.
Go ahead and copy your data over to the pool. When you are finished,
add in the last 1TB drive this way:
# zpool replace /some/path/here c0t4d0
You can do something similar for RAIDZ2 pools.
Obviously, you can only have 1 "fake" drive in a RAIDZ1 pool, and 2
"fake" drives in a RAIDZ2 pool.
--
Erik Trimble
Java System Support
Mailstop: usca22-123
Phone: x17195
Santa Clara, CA
Timezone: US/Pacific (GMT-0800)
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