On Mon, Jul 15, 2013 at 03:38:07PM +1000, Tim Connors wrote:
One thing I read yesterday was that zfs can be prone to issues from fragmentation - is there a preventive strategy or remedial measure to take into account?
Don't ever use more than 80% of your file system?
btrfs has a 'balance' command to rebalance storage of files across the disks (e.g. after you've added or replaced disks in the pool. That has the side-effect of de-fragging files. of course, on a large pool, it takes ages to run. zfs doesn't have this.
Yeah, I know that's not a very acceptable alternative.
it's not that bad. you're supposed to keep an eye on your systems and add more disks to the pool (or replace current disks with larger ones) as it starts getting full. my main zpools (4x1TB in RAIDZ1) are about 70% full. I probably should start thinking about replacing the drives with 4x2TB soon...or deleting some crap. craig -- craig sanders <cas@taz.net.au> BOFH excuse #108: The air conditioning water supply pipe ruptured over the machine room