Hi Mike, I reviewed this doc and the only issue I have with it now is that uses /var/tmp an an example of storing snapshots in "long-term storage" elsewhere.
For short-term storage, storing a snapshot as a file is an acceptable solution as long as you verify that the snapshots as files are valid like you would for any important data. I test root pool snapshot recovery for every Solaris 10 release and have also for Nevada releases. The point that needs to be clear is that you verify the file or snapshot. I have updated our root pool recovery steps to be performed either using snapshots as remotely stored files or remotely stored snapshots, here: http://www.solarisinternals.com/wiki/index.php/ZFS_Troubleshooting_Guide#Complete_Solaris_ZFS_Root_Pool_Recovery I will follow-up on this particular marketing document. Thanks for pointing it out... Cindy On 09/02/09 12:37, Mike Gerdts wrote:
I just received a special offer from Sun (marketing...) promising that I will learn "How to use ZFS snapshots for backup and restore purposes." The relevant doc is at... https://www.sun.com/offers/docs/zfs_snapshots.pdf It says: === Begin quote === Archiving and Restoring Snapshots Another use of snapshots is to create archives for long-term storage elsewhere. In the following sequence of commands, we send the snapshot into a file and then compress it. It can then be retrieved from the file when required. This is also shown: # zfs send pool/filesys...@thursday > /var/tmp/thursday.snap # gzip -9 -v /var/tmp/thursday.snap # zfs create pool/thursday # gzip -d -c /var/tmp/thursday.snap.gz | zfs receive -F pool/thursday === End quote === There have been several threads on this list saying not to do that. It seems that this guide aimed at new users is inviting people to do things that will lead them to unsympathetic ears if things go poorly.
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