Hey guys I am in the process of getting my first server up and running. I am having some performance issues though. From reading through the forums it sounds like most people are getting writes around 30 MB/s, I am only getting 10 to 12 MB/s.

I bought some of the feared Samsung 4k HDs before I decided, or really looked into unRAID. I hear that the performance using those drives is sub par, but is it really 1/3rd? I had a 1 TB WD EADS drive so I put that in to see what sort of performance I would get writing to it. Still 10 to 12 MB/s. The system consists of a SuperMicro MBD-X7SLA-H-O (http://www.newegg.com/Product/Product.aspx?Item=N82E16813182205), 2 GB of Crucial DDR2 667 SDRAM (http://www.newegg.com/Product/Product.aspx?Item=N82E16820146523), Hitachi Deskstar 2TB (http://www.newegg.com/Product/Product.aspx?Item=N82E16822145298)for parity, 2 x SuperMicro AOC-SASLP-MV8 cards (http://www.newegg.com/Product/Product.aspx?Item=N82E16816101358), in a Norco 4220 case (http://www.newegg.com/Product/Product.aspx?Item=N82E16811219033). What I have been streaming from is my desktop PC with Gig NIC through a Gig router.

 

What should I do to get the performance that others are speaking of?

Thanks for the help.

Jesse

 

What should I do to get the performance that others are speaking of?

Attach a copy of your syslog

 

post the output of the following commands:

ethtool eth0

ifconfig eth0

 

Settings for eth0:

        Supported ports: [ TP MII ]

        Supported link modes:  10baseT/Half 10baseT/Full

                                100baseT/Half 100baseT/Full

                                1000baseT/Half 1000baseT/Full

        Supports auto-negotiation: Yes

        Advertised link modes:  10baseT/Half 10baseT/Full

                                100baseT/Half 100baseT/Full

                                1000baseT/Half 1000baseT/Full

        Advertised auto-negotiation: Yes

        Speed: 100Mb/s

        Duplex: Full

        Port: MII

        PHYAD: 0

        Transceiver: internal

        Auto-negotiation: on

        Supports Wake-on: pumbg

        Wake-on: g

        Current message level: 0x00000033 (51)

        Link detected: yes

root@unRAID:/boot# ifconfig eth0

eth0      Link encap:Ethernet  HWaddr 00:25:90:30:18:44

          inet addr:192.168.1.16  Bcast:192.168.1.255  Mask:255.255.255.0

          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:237954 errors:0 dropped:0 overruns:0 frame:0

          TX packets:111878 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:346823946 (330.7 MiB)  TX bytes:6982519 (6.6 MiB)

          Interrupt:28 Base address:0xe000

 

Thanks for the help

syslog_12-29-10_756_pm.doc

Speed: 100Mb/s

Your only connecting at 100MBps. What kind of Ethernet cable are you using? You need CAT 5e or CAT 6.

Awesome, I just double checked my router... not Gig... That's what I get for letting the roommate buy stuff I guess. Is that all the speed I can expect without Gig?

Awesome, I just double checked my router... not Gig... That's what I get for letting the roommate buy stuff I guess. Is that all the speed I can expect without Gig?

Yes... you are running as fast as it will let you. (10 to 12 MB/s)

Thanks for the quick replies

Is there a way to transfer files from 1 location to another with in the server and see what sort of speeds its transfering at?

Make sure you apply the firmware patch for those Samsung drives before you do anything with them.

 

Is there a way to transfer files from 1 location to another with in the server and see what sort of speeds its transfering at?

Yes.

 

Easiest for a newcommer to unix is to use "midnight commander" that is built into unRAID.

To invoke it type:

mc

It is a clone of norton commander from the ms-dos days.  When copying files I think it even shows you progress and rate of the copy.

 

There is a thread where it describes step by step on how to apply firmware patch to the Samsung drives?

I patched them as soon as I got them, thanks though. I'll try out MC and see what sort of performance I am getting.

Thanks guys.

There is a thread where it describes step by step on how to apply firmware patch to the Samsung drives?

 

Yes there is, or at least they link to the firmware download which includes all the steps needed to apply their patches. It's included in the warning thread and the other threads mentioning the drives usually have a link to that thread too.