/Caveat Lector//*/.
Consider in spirit the following combo (which may still not fit the
space & if you shopped around something cost appropriate may turn up
because those are awfully big for a ZIL):
http://www.amazon.com/PCI-E-Degree-Right-Angle-Riser/dp/B005FEGXXY
&
(Pick your poison from)
http://www.intel.com/content/www/us/en/solid-state-drives/intel-ssd-dc-family-for-pcie.html
*I have not test this configuration /per se/ but I have used an SSD ZIL
gaining much performance from it and use a non-ZIL HDD setup for
something else and it is punishingly slow.
**Note: Assuming you mean RAID 1 (mirroring) by 'RAID Mirror' could you
not simply swap one mirror set (disk at time) for larger SSDs?
*** I have swapped disks in a ZFS mirror and it went well.
On 2/7/16 7:48 AM, Sebastien Perreault wrote:
Hi,
I have a little performance issue with KVM vm's due to the fact that
they do sync write by default (if my memory serves me right). I
currently have servers which are either Cisco C200M2 or SunFire X2270,
so they have 4 x SATA ports and 2 PCIe slots that's it. Right now I
have 4 x 1TB drives in those, I've used raid mirror, not raid-z, but
still I have some little problems, just with the KVM vm's, native
zones are usually fine.
Would anybody here have an idea of either a PCIe card or USB dongle I
could use as a ZIL device? I cannot remove the disks for obvious
reason.
Any tested ideas welcome :)
My last resort idea would be to transition the KVM linux host into
lx-brand, but it's not something I want to explore first.
Thanks much,
-------------------------------------------
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