I have 10GbE on my server and desktop. I would like to be able to saturate the whole link, or get as close to 1000MB/s writes as possible.
I have 4x 128GB 850 PRO ssds which I'd like to put in use.
Now, my server has two pools, TANK and VMs. Tank consists of 8x 4TB spindles in one raidz2, so obviously write operations are ridiculously slow. VMs consists of Intel X25M-G2, faster but not fast enough. I'm planning on replacing these Intels with the 850 Pros.
I was thinking of creating 40GB partition on each and adding two mirror vdevs to TANK as ZIL, then move all VMs to tank and use SSDs only for ZIL.
If I understand it correctly, ZFS writes are synchronous and single threaded per application, so multiple mirrored ZILs wont boost my performance as much as I'd like? Can someone correct me if Im mistaken.
Here's my full spec list. If there is a better way to achieve higher write performance, please let me know. ZFS is on virtualized OmniOS, ESXi 5.5.
CPU: Intel Xeon E3-1230v3
MoBo: Supermicro X10SLH-F
Ram: 32GB (4x8GB) Kingston ValueRam ECC UDIMM 1600MHz CL11
SSDs: 2x Intel SSD 520 Series 60GB
4x Samsung 850 PRO 128GB
HDDs: 4x Seagate NAS HDD 4TB
4x Hitachi Deskstar NAS 4TB
HBAs: 2x IBM M1015 (cross-flashed to 9211-8i IT)
Intel X520-DA2 10GbE
Thanks in advance!
I have 4x 128GB 850 PRO ssds which I'd like to put in use.
Now, my server has two pools, TANK and VMs. Tank consists of 8x 4TB spindles in one raidz2, so obviously write operations are ridiculously slow. VMs consists of Intel X25M-G2, faster but not fast enough. I'm planning on replacing these Intels with the 850 Pros.
I was thinking of creating 40GB partition on each and adding two mirror vdevs to TANK as ZIL, then move all VMs to tank and use SSDs only for ZIL.
If I understand it correctly, ZFS writes are synchronous and single threaded per application, so multiple mirrored ZILs wont boost my performance as much as I'd like? Can someone correct me if Im mistaken.
Here's my full spec list. If there is a better way to achieve higher write performance, please let me know. ZFS is on virtualized OmniOS, ESXi 5.5.
CPU: Intel Xeon E3-1230v3
MoBo: Supermicro X10SLH-F
Ram: 32GB (4x8GB) Kingston ValueRam ECC UDIMM 1600MHz CL11
SSDs: 2x Intel SSD 520 Series 60GB
4x Samsung 850 PRO 128GB
HDDs: 4x Seagate NAS HDD 4TB
4x Hitachi Deskstar NAS 4TB
HBAs: 2x IBM M1015 (cross-flashed to 9211-8i IT)
Intel X520-DA2 10GbE
Thanks in advance!