On 2011-May-04 08:39:39 +0800, Rich Teer <rich.t...@rite-group.com> wrote: >Also related to this is a performance question. My initial test involved >copying a 50 MB zfs file system to a new disk, which took 2.5 minutes >to complete. The strikes me as being a bit high for a mere 50 MB; >are my expectation realistic or is it just because of my very budget >concious set up? If so, where's the bottleneck?
Possibilities I can think of: - Do you have lots of snapshots? There's an overhead of a second or so for each snapshot to be sent. - Is the source pool heavily fragmented with lots of small files? >The source pool is on a pair of 146 GB 10K RPM disks on separate >busses in a D1000 (split bus arrangement) and the destination pool >is on a IOMega 1 GB USB attached disk. The machine to which both >pools are connected is a Sun Blade 1000 with a pair of 900 MHz US-III >CPUs and 2 GB of RAM. Hopefully a silly question but does the SB1000 support USB2? All of the Sun hardware I've dealt with only has USB1 ports. And, BTW, 2GB RAM is very light on for ZFS (though I note you only have a very small amount of data). -- Peter Jeremy
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