Hi all,
Building dual ZFS SANs at work with this hardware:
HP DL360 head units // 18GB RAM // Intel SSDs for zil/cache
LSI SAS 9201-16e
DataOn Storage DL-1630 with dual controllers filled with 2TB SATA
Hitachis + LSI SAS transposers
I originally installed FreeBSD but my fight with gmultipath was not
going well. I wasn't happy that it didn't have ACTIVE/ACTIVE and I also
was discouraged by the ability to make it panic. I flirted briefly with
OpenIndiana, but that whole platform needs to die as it's so painful to
use. The weirdly horrible interactivity wasn't confidence-inspiring
either -- why did it take 10 seconds to display "top"? Why were ZFS pool
operations so slow? Very strange!
This morning I found you actually released gmultipath patches and I
must say -- this works FANTASTIC now! I can be writing 500MB/s+ and pull
the cables at random and it's nearly transparent in passive and active
modes. I urge you to commit this so it gets more testing, but I will be
putting FreeBSD9 + gmultipath in production soon. I just need to do some
more benchmarks and I might switch the scheduler to 4BSD because this
box will be doing nothing but I/O and network traffic and my research
indicates ULE is not optimal in that type of a workload.
Cheers,
Mark
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