ysnk
Explorer
- Joined
- Dec 1, 2014
- Messages
- 59
My system: FreeNAS-9.3-STABLE-201412090314
Xeon E3-1220V2, 16GB ECC, LSI 9220-8i in IT mode.
8 HDDS in 4 mirrors :
3 pairs of WD RE4 2TB and 1 pair of Hitachi 7K3000 2TB
CIFS share.
Direct 10GBe connection ( intel X540-t1, cat7 cable) to my PC workstation ( dual E5-2696V2, 64GB ram, windows7)
To test the performance I created a 48GB RAM drive with 2 folders:
1st one is about 20GB mix or large rar archives and mp4 videos, all files are larger than 3Gb
2nt one is also about 20GB, my typical video post project - mix of small files, mostly tga, png, jpg, some mp4. About 5000 files.
I copied folders to and from NAS and looked at transfer speed reporting by windows.
Results are:
1) large files - 500-550MB/s write to freenas , 280-300MB/s read
2) small files - 180-200MB/s write, 130-140MB/s read
Looks like something is wrong, I thought read speed should be faster then writes?
Also small files performance is lower than I expected.
Is there something I can tune up? What should I look into first?
Thank you in advance!
____________
Update: I just tested two more configurations - 8 drives in stripe, and two 4-drive raidz2 striped.
Stripe of 8 hdd gave me nodifference in speed, very close to the original stripe of mirors.
Two raidz2 is slower of course, but not much - read speed in fact is only about 10% lower. Write speed is about 25% lower.
Xeon E3-1220V2, 16GB ECC, LSI 9220-8i in IT mode.
8 HDDS in 4 mirrors :
3 pairs of WD RE4 2TB and 1 pair of Hitachi 7K3000 2TB
CIFS share.
Direct 10GBe connection ( intel X540-t1, cat7 cable) to my PC workstation ( dual E5-2696V2, 64GB ram, windows7)
To test the performance I created a 48GB RAM drive with 2 folders:
1st one is about 20GB mix or large rar archives and mp4 videos, all files are larger than 3Gb
2nt one is also about 20GB, my typical video post project - mix of small files, mostly tga, png, jpg, some mp4. About 5000 files.
I copied folders to and from NAS and looked at transfer speed reporting by windows.
Results are:
1) large files - 500-550MB/s write to freenas , 280-300MB/s read
2) small files - 180-200MB/s write, 130-140MB/s read
Looks like something is wrong, I thought read speed should be faster then writes?
Also small files performance is lower than I expected.
Is there something I can tune up? What should I look into first?
Thank you in advance!
____________
Update: I just tested two more configurations - 8 drives in stripe, and two 4-drive raidz2 striped.
Stripe of 8 hdd gave me nodifference in speed, very close to the original stripe of mirors.
Two raidz2 is slower of course, but not much - read speed in fact is only about 10% lower. Write speed is about 25% lower.
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