Re: [zfs-discuss] thoughts on parallel backups, rsync, and send/receive

2009-01-26 Thread Ahmed Kamal
Did anyone share a script to send/recv zfs filesystems tree in parallel, especially if a cap on concurrency can be specified? Richard, how fast were you taking those snapshots, how fast were the syncs over the network. For example, assuming a snapshot every 10mins, is it reasonable to expect to

Re: [zfs-discuss] thoughts on parallel backups, rsync, and send/receive

2009-01-26 Thread Richard Elling
Ian Collins wrote: Richard Elling wrote: Recently, I've been working on a project which had agressive backup requirements. I believe we solved the problem with parallelism. You might consider doing the same. If you get time to do your own experiments, please share your observations with

Re: [zfs-discuss] thoughts on parallel backups, rsync, and send/receive

2009-01-26 Thread Richard Elling
Ahmed Kamal wrote: Did anyone share a script to send/recv zfs filesystems tree in parallel, especially if a cap on concurrency can be specified? Richard, how fast were you taking those snapshots, how fast were the syncs over the network. For example, assuming a snapshot every 10mins, is it

Re: [zfs-discuss] thoughts on parallel backups, rsync, and send/receive

2009-01-26 Thread Ian Collins
Richard Elling wrote: Ian Collins wrote: One thing I have yet to do is find the optimum number of parallel transfers when there are 100s of filesystems. I'm looking into making this dynamic, based on throughput. I'm not convinced that a throughput throttle or metric will be

[zfs-discuss] thoughts on parallel backups, rsync, and send/receive

2009-01-25 Thread Richard Elling
Recently, I've been working on a project which had agressive backup requirements. I believe we solved the problem with parallelism. You might consider doing the same. If you get time to do your own experiments, please share your observations with the community.

Re: [zfs-discuss] thoughts on parallel backups, rsync, and send/receive

2009-01-25 Thread Ian Collins
Richard Elling wrote: Recently, I've been working on a project which had agressive backup requirements. I believe we solved the problem with parallelism. You might consider doing the same. If you get time to do your own experiments, please share your observations with the community.