zfs send to tape backup

custangro · 03-17-2010, 10:53 AM

Testing a "backup to tape" scenario for zfs...

I am getting this error when trying to send a snapshot to tape for backup...

Code:

root@host# zfs send pool/bkuptest@full | tar -cvEfb /dev/rmt/0cn 20 - 
tar: -: No such file or directory

Any ideas? Comments? Concerns? Help?

-C

jlliagre · 03-17-2010, 04:42 PM

Tar is expecting a file or directory name so '-' isn't supported in this position. Why aren't you using dd to write the stream to the tape ?

custangro · 03-17-2010, 05:50 PM

Quote:

Originally Posted by jlliagre

Tar is expecting a file or directory name so '-' isn't supported in this position. Why aren't you using dd to write the stream to the tape ?

At this point I'm just experimenting...although I found that this works perfectly...

Code:

zfs send pool/bkuptest@full > /dev/rmt/0
zfs recv pool/recover < /dev/rmt/0

-C