Hello,
I am attempting to move a bunch of zfs filesystems from one pool to another.
Mostly this is working fine, but one collection of file systems is causing me
problems, and repeated re-reading of "man zfs" and the ZFS Administrators Guide
is not helping. I would really appreciate some help/advice.
Here is the scenario.
I have a nested (hierarchy) of zfs file systems.
Some of the deeper fs are snapshotted.
All this exists on the source zpool
First I recursively snapshotted the whole subtree:
zfs snapshot -r nasp...@xfer-11292010
Here is a subset of the source zpool:
# zfs list -r naspool
NAME USED AVAIL REFER
MOUNTPOINT
naspool 1.74T 42.4G 37.4K /naspool
nasp...@xfer-11292010 0 - 37.4K -
naspool/openbsd 113G 42.4G 23.3G
/naspool/openbsd
naspool/open...@xfer-11292010 0 - 23.3G -
naspool/openbsd/4.4 21.6G 42.4G 2.33G
/naspool/openbsd/4.4
naspool/openbsd/4...@xfer-11292010 0 - 2.33G -
naspool/openbsd/4.4/ports 592M 42.4G 200M
/naspool/openbsd/4.4/ports
naspool/openbsd/4.4/po...@patch000 52.5M - 169M -
naspool/openbsd/4.4/po...@patch006 54.7M - 194M -
naspool/openbsd/4.4/po...@patch007 54.9M - 194M -
naspool/openbsd/4.4/po...@patch013 55.1M - 194M -
naspool/openbsd/4.4/po...@patch016 35.1M - 200M -
naspool/openbsd/4.4/po...@xfer-11292010 0 - 200M -
Now I want to send this whole hierarchy to a new pool.
# zfs create npool/openbsd
# zfs send -R naspool/open...@xfer-11292010 | zfs receive -Fv npool/openbsd
receiving full stream of naspool/open...@xfer-11292010 into
npool/open...@xfer-11292010
received 23.5GB stream in 883 seconds (27.3MB/sec)
cannot receive new filesystem stream: destination has snapshots (eg.
npool/open...@xfer-11292010)
must destroy them to overwrite it
What am I doing wrong? What is the proper way to accomplish my goal here?
And I have a follow up question:
I had to snapshot the source zpool filesystems in order to zfs send them.
Once they are received on the new zpool, I really don't need nor want this
"snapshot" on the receiving side.
Is it OK to zfs destroy that snapshot?
I've been pounding my head against this problem for a couple of days, and I
would definitely appreciate any tips/pointers/advice.
Don
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