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.
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