On Sep 18, 2012, at 10:40 AM, Dan Swartzendruber wrote: On 9/18/2012 10:31 AM, Eugen Leitl wrote: I'm currently thinking about rolling a variant of
http://www.napp-it.org/napp-it/all-in-one/index_en.html with remote backup (via snapshot and send) to 2-3 other (HP N40L-based) zfs boxes for production in our organisation. The systems themselves would be either Dell or Supermicro (latter with ZIL/L2ARC on SSD, plus SAS disks (pools as mirrors) all with hardware pass-through). The idea is to use zfs for data integrity and backup via data snapshot (especially important data will be also back-up'd via conventional DLT tapes). Before I test thisi -- Is anyone using this is in production? Any caveats? I run an all-in-one and it works fine. Supermicro x9scl-f with 32gb ECC ram. 20 is for the openindiana SAN, with an ibm m1015 passed through via vmdirect (pci passthru). 4 SAS nearline drives in 2x2 mirror config in a jbod chassis. 2 samsung 830 128gb ssds as l2arc. The main caveat is to order the VMs properly for auto-start (assuming you use that as I do.) The OI VM goes first, and I give a good 120 seconds before starting the other VMs. For auto shutdown, all VMs but OI do suspend, OI does shutdown. The big caveat: do NOT use iSCSI for the datastore, use NFS. Maybe there's a way to fix this, but I found that on start up, ESXi would time out the iSCSI datastore mount before the virtualized SAN VM was up and serving the share - bad news. NFS seems to be more resilient there. vmxnet3 vnics should work fine for OI VM, but might want to stick to e1000. Can I actually have a year's worth of snapshots in zfs without too much performance degradation? Dunno about that. I did something similar: http://churnd.wordpress.com/2011/06/27/zfsesxi-all-in-one-part-1/ Works great… need to bump up the RAM to 32GB.
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