Ok so Unraid is up and running as my new production server, WHS has been retired (for now) I was transfering some large iso's to the server and running speed tests. Server is not running a parity drive at the moment and all drives involved are green drives. I am avg 52 - 60 MB/sec utilizing about 50% of the gigabit network as shown by the attached image. The network was otherwise unused. Is this as good as it gets? I am not complaining, just curious.

 

Also when I add the parity drive and a cache drive is there any benifit to going with a 7200 rpm cache drive instead of a green drive or will speeds likely not increase above my current results?

 

Thanks all,

 

John

 

Server specs in sig....

That is nearly top speed and is excellent! Adding a 7200 won't help unless you replace ALL of your drives - not worth it.

 

Those speeds are excellent

That is nearly top speed and is excellent! Adding a 7200 won't help unless you replace ALL of your drives - not worth it.

 

Those speeds are excellent

 

Thanks Teamhood, that is what I wanted to here, otherwise I had to go squeeze out a few extra MB/Sec 

If I move things between disks with MC my speed is about half, is that because they are on the same controller? I dont plan on moving between disks often so I don't know if there is a benifit to moving one drive to the jmicron pcie controller that is in the system but currently unused.

 

On last question about drive temp, the WD15EARS is showing yellow at 41C the Barracuda LP is doing all the work and showing at 39C. Yellow says minor issue, what is a normal temp for these drives and when does it become an issue?

 

Here is the output of the disk speed test from unmenu:

 

sda was the drive being written to. No clue what sdc is as there is only two drives in the system at the moment.

/dev/sda:

Timing cached reads:  3166 MB in  2.00 seconds = 1582.95 MB/sec

Timing buffered disk reads:  340 MB in  3.01 seconds = 112.95 MB/sec

 

/dev/sdb:

Timing cached reads:  2854 MB in  2.00 seconds = 1427.06 MB/sec

Timing buffered disk reads:  276 MB in  3.01 seconds =  91.70 MB/sec

 

/dev/sdc:

Timing cached reads:  3056 MB in  2.00 seconds = 1528.41 MB/sec

Timing buffered disk reads:  48 MB in  3.07 seconds =  15.62 MB/sec

 

Ok this is curious, I can write to Unraid in the mid 50's MB/sec but can only read in the mid 40's MB/sec. I thought read speeds were better than write.

Just a little FYI, I found a thread here about slow copy with win7 related to Remote Differential Compression, so I turned it off to see what happened. My xfer to the server jumped to 75MB/Sec

 

Amazing little tip Attached is a screen shot