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Re: [BackupPC-users] Block-level rsync-like hashing dd?
2011-04-12 20:40:08
On 13/04/2011 5:13 AM, Timothy J Massey wrote:
To
slightly expand what Les wrote: there are
4 realistic options (for a very loose definition of
"realistic"):
1) rsync the pool.
2) LVM Snapshot/dd
3) Break a RAID array
4) Run two separate BackupPC servers, both
backing
up the same server.
You missed options 5 and 6.
5) Run on Solaris or Opensolaris using NFS. Make regular NFS
snapshots (cheap) and send the snapshots to a remote Solaris
machine. NFS even allows you to send the delta's between snapshots.
(Got lots of memory, or a ssd log device? Disable backuppc's pool
and rely on NFS block level de-duplication instead.)
Our current option would now be number 6 on this list. An archive
host.
6) Archive Host. Backups run at night, during the day, backuppc
archives itself to the archive host. Tar files of all the backups
sit on a remote server - full remote backups of everything on the
backuppc. An instant replacement for tape.
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