Hi! We're building our first dedicated ZFS-based NAS/SAN (probably using
Nexenta) and I'd like to run the specs by you all to see if you have any
recommendations. All of it is already bought, but it's not too late to add to
it.
Dell PowerEdge R9102x Intel X7550 2GHz, 8 cores each plus HyperThreading256GB
RAM2x 4GB DDRDrive X1 (PCIe) in mirror for the ZIL8x 100GB Samsung SS805 SSDs
for the L2ARC (on an onboard PERC H700 controller)2x PERC H800 and 2x PERC6
controllers for the JBODs below11x Dell MD1000 JBODs with: 45x 750GB SATA
HDDs 30x 1000GB SATA HDDs 60X 300GB SAS 15K HDDs 30x 600GB SAS 15K
HDDs2x 10GbE ports
We plan to connect about 30 servers to it. About 8 will be currently I/O-bound
MySQL databases with a 60/40 read bias, the rest will have much lighter usage.
Most connections will be through iSCSI.
Is there anything that seems out of proportion? Where do you think the
bottleneck will be? If I'm going to use the SAS 15K drives for databases and
the SATA drives for NFS/backups, how should I setup the pools?
Thank you for any advice!
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