I was watching DrivePool operations recently and I suspect the aggressive balance immediately settings are actually probably hurting overall performance of file operations that frequently happen for me. Specifically, merge/decode of multi-part files. I have an SSD in the pool with the SSD Optimizer, and I had thought there was a little delay before the balancer tried moving files off, but watching the operations, it looks like this actually happens much quicker than I thought. The net result being that I think temp files are getting pushed to spindle disks and decode ops are happening from there instead of on SSD. I'm going to enable the "not more often" settings and just swag a value, and see if that improves performance.
I'm more looking for commentary on if my reasoning is correct with my observations of what I'm seeing in the DrivePool UI. It would explain why some of those things always seemed to take a little longer then I thought they should against an SSD(since they weren't against SSD!).
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JasonC
I was watching DrivePool operations recently and I suspect the aggressive balance immediately settings are actually probably hurting overall performance of file operations that frequently happen for me. Specifically, merge/decode of multi-part files. I have an SSD in the pool with the SSD Optimizer, and I had thought there was a little delay before the balancer tried moving files off, but watching the operations, it looks like this actually happens much quicker than I thought. The net result being that I think temp files are getting pushed to spindle disks and decode ops are happening from there instead of on SSD. I'm going to enable the "not more often" settings and just swag a value, and see if that improves performance.
I'm more looking for commentary on if my reasoning is correct with my observations of what I'm seeing in the DrivePool UI. It would explain why some of those things always seemed to take a little longer then I thought they should against an SSD(since they weren't against SSD!).
Thanks!
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