[zfs-discuss] ZIL waste of space?

Richard Elling richard.elling at richardelling.com
Sat Feb 3 20:33:19 EST 2018

> On Feb 3, 2018, at 4:24 PM, Hetz Ben Hamo via zfs-discuss <zfs-discuss at list.zfsonlinux.org> wrote:
> Hi,
> While I'm looking to buy some hardware for a new ZFS machine, I find myself wondering about a good solution for ZIL SSD since this machine will offer iSCSI services to many ESXi machines (it's for a home lab but yet, I want a good speed since the connection will be 10Gb).
> So I look at the ZEUS solution, the price is sky high - $600-800 on eBay. skipping.
> Then I looked at Intel 900P - great device, but won't work since it requires UEFI 2.3.1 and PCI 3.0, the server will be IBM/Lenovo X3650 M3, only PCIe 2.0.
> And then I looked at Intel DC S3710 - 200GB for around $250, looks great.

FWIW, Intel DCS3510 80GB is around $120 and will waste less space. If you only use it for ZIL
then there will be plenty of overprovisioning to last a long time.
 -- richard

> But my main problem is waste: ZIL takes only few gigabytes, which means out of 200GB, ~195GB will be unusable for anything else. I know I can partition the drive for ZIL and L2ARC but if I understood correctly, it's not recommended (I'll use ZoL but looking at FreeNAS, it's not even possible [at least using their web interface]).
> What would you recommend?
> Thanks
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