The Xraid is a very well thought of storage device with a heck of a price
point. Attached is an image of the "Settings"/"Performance" Screen where
you see "Allow Host Cache Flushing".
I think when you use ZFS, it would be best to uncheck that box.
This is what happen when you do use GUI in your native language (french
in my case). I finally understood what was the meaning in french, after
reading it from your image in english :)
And your setting just boosted my BW from 0.8 MiB/s to 7 MiB/s * !!
good to see that it just works.
The only 2 drawbacks to using Xserve raid that I have found are:
1. Partition Management, dynamic expansion and Volume management. If we
stay native in OSX tools/filesystems we cant partition with free space then
later try to create a partition and retain the data from the already created
partition. This really sucks. I'm betting Xsan changes these limitations
however.
I would love that the Xserve juste provide a way to exports 14 disks to
the Host. In this way, we could manage it with zfs in a more fine
grained fashion.
2. Each controller can only talk to 7 disks (1/2 the array).
Other than that, the thing is really fast, and quite reliable. Not to
mention the sexy blue lights that tell you its hummin'
yeah right.. quite sexy !
-Andy
Ced.
* (a MiB is a mebibyte 2^20 ref: http://en.wikipedia.org/wiki/Mebibyte)
--
Cedric BRINER
Geneva - Switzerland
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