Hi,
I've had some general performance issues with a server, made apparent mainly by web pages loading slowly and inconsistently. Certain MySQL queries were very slow, and even certain directory listings. It seemed to get resolved either by chance, or by my extending the main zpool. The only thing is, I thought I had plenty of free space.
Before and after:
I found some old user information regarding needing a certain amount of free space for ZFS to function well, but where can I find something more definitive, if at all true?
This is a virtual machine, for the record.
I've had some general performance issues with a server, made apparent mainly by web pages loading slowly and inconsistently. Certain MySQL queries were very slow, and even certain directory listings. It seemed to get resolved either by chance, or by my extending the main zpool. The only thing is, I thought I had plenty of free space.
Before and after:
Diff:
# zpool list
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
zroot 196G 174G 21.8G - - 79% 88% 1.00x ONLINE -
-zuser 850G 772G 77.6G - - 89% 90% 1.00x ONLINE -
+zuser 900G 772G 128G - - 84% 85% 1.00x ONLINE -
I found some old user information regarding needing a certain amount of free space for ZFS to function well, but where can I find something more definitive, if at all true?
This is a virtual machine, for the record.