vbfox at ucdavis.edu
Tue Apr 24 21:30:31 EDT 2007
Has anyone attempted using ZFS compression on mail spools?
This is a new Cyrus 2.3.8 mail-store, and we are using dual fiber
HBA to SAN switches and Sun 3510FC units on the backend, multipath
and active-active on the dual-controllers. RAID-5 LUNs on each array
are ZFS mirrored between arrays. Yes, multiple levels of paranoia.
We have Sun T2000 which are quad-CPU. So it seems like there is
plenty of CPU there for the extra overhead that inline compression is
likely to add.
Anyhow, I still envision the I/O being the bottleneck though so I am
wondering if turning this on will buy me any performance and at what price?
This system is not in production yet so I am still throwing things at it
to see at what point it breaks.
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