Bad Network Performance - Is it me?

[kscircular]

I'm in the process of moving all my files off of a dedicated server onto the Javelin. The server has a gigabyte nic and I'm running it with a Jumbo Frame setting of 9K. I changed the Javelin to use the same Jumbo Frame setting.

While I haven't measure the actual throughput, I know that when I would copy a ISO (of about 4GB) in size it would take about 3 minutes from the Desktop to my server (GBE-to-GBE). With regular windows file copying (in Windows 7) it would start off with around 85MB per second and then settle down to around 50MB per second.

Now when I do a similar copy with the NAS, it is taking much longer. I tried a test Windows copy/paste action with an ISO file and it says it is copying at about 8MB per minute.

Is there anything I need to do to get the performance up? I know that the box is capable of doing much better.

[BadIntentions]

Verify the javelin is running in Gigabit mode, 8mb/s sounds like 10/100. It is picky about cable quality. If its not in gigabit mode, switch the cable out with a different one.

Also, the javelins/linux jumbo frames mode can be confusing, try disabling it and see if the speeds pick up.

[kscircular]

The NAS is indeed running in GB mode. I'll try disabling JF and see what happens!

[kscircular]

Well, after some investigation I found out what the problem is. It is not the fault of the NAS fortunately. After doing some tests, I found out that the reason for the slow transfers was because my current RAID-5 server is undergoing a rebuild. That is slowly down any data going into or out of the RAID array. I tried doing a copy from a non-RAID disk on the same server to the NAS and I was getting around 60MB per second, which is about what I expected.

I think the RAID was thrown into rebuild mode because of several improper shutdowns. It doesn't look like there is anything wrong with the drives. Anyway, it should be done with the rebuild later this evening and when that's done, I'll try pulling my files off this server and down to the NAS.

[BoostedGen2010]

I have seen about 320MB/s at the drive level on mine with 4 WB Black edu. drives in a raid 10... The unit is very fast. Glad you were able to figure it out.

[kscircular]

Could RAID-10 possibly be way faster than RAID-5?

[BadIntentions]

Could RAID-10 possibly be way faster than RAID-5?

Raid 10 is faster than raid 5, since there is no parity/XOR calculation. The penalty is a BIT stiff though, costing you half of your storage space. All of my research/work has been on units running a Raid 5 configuration.