Drive Speeds (Stripe)

[n00bftw007]

Just for fun, I set up a Stripe (RAID0) with my x8 WD Red 14TB drives, each drive does about 210MB/s. Now am i going mad, or should I be getting far better speeds?

Tested over a 10GB network using a Windows share.

 

[sretalla]

you're getting nearly 800MB. Your 10 Gig network is maxed at around 1100MB, so it's not too shabby... what are your network settings (MTU) and what type of files are you moving around?

 

[Samuel Tai]

See this other thread on someone who was running a similar stripe pool, who was able to gain another 200MB/s by enabling jumbo frames.

 

[MikeyG]

I 2nd the jumbo frames idea. That got me from around 800MB/s to 1GB/s via SMB.

 

[Yorick]

The "storage people" keep telling me that jumbo frames are rarely worth the end-to-end networking hassle and that server NICs take care of the overhead of smaller frames - not so, then?

 

[Samuel Tai]

If your architecture has a dedicated storage LAN/VLAN that doesn't cross a layer 3 boundary to reach the storage clients, then jumbo frames are a viable option.

 

[n00bftw007]

Got it sorted now, the problem was that I had to add 'tso lro' into the options field of the NIC. Beautiful. I also have it running in ESXi ;). Runs perfect.