02-11-2014
Some comments:
No need to backup libc_hwcap2.so.1 which isn't a zfs file system anyway.
You need to create a snapshot before sending datasets.
Instead of sending each file system separately, send recursively from the top dataset (and create a recursive snapshot to ensure consistency).
Instead of sending to a local file, send the stream to another machine where you run "zfs receive". This will guarantee the backup wasn't corrupted during the transport.
If you want to compress your data, use ZFS own compression capabilities instead of relying of an external gzip command.
If you are short on network bandwidth, you might compress the datastream before sending it but you'll need to uncompress it on the other side before receiving it.
Use incremental send/receive for subsequent backups.
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