Danieluwe Posted October 14, 2014 Share Posted October 14, 2014 Hi looking for some help with transfer speeds for my unraid server, Ive been running my server for a few years now without issue apart from I have always maxed out my read speed at around 15MB/s (this is on a cat 7 wired gigabit network) (Write speed is around 14MB/s which I'm more than happy with) The read speed was never an issue due to streaming small files from the server, Lately i've been trying to stream blu-ray iso's from the server and am occasionaly getting stutter, I have played the files locally and found playback to be fine, I'm guessing that the low read speed of my server is creating an issue with streaming the large iso files, I have replaced pretty much every component in the server over the last few years including motherboard/cpu/sas card/ and replaced all lan cables with cat 7, but still hitting the 15MB/s limit on read, I'm starting to pull my hair out trying to solve this one, Any help would be greatly appreciated, Currently running Unraid 5.0.5 Pro with a 17 disk array consisting of mainly WD reds and greens On an intel I5 2500k cpu, 8gb Ram, Gigabyte GA-Z68AP-D3 Motherboard, Using on-board lan. Onboard SATA, LSI 9211-8i flashed to latest IT firmware and 2x SIL3132 cards. Many thanks Dan Quote Link to comment
JonathanM Posted October 14, 2014 Share Posted October 14, 2014 Have you tried connecting directly to the server just to eliminate something in the rest of the network? What I mean is, disconnect the server from the gigabit switch, and plug it directly into the client machine you can test with. You will need to temporarily set static IP's on both the server and the test client, you can do that by checking what IP information they have currently, and duplicating that as the static IP for your temporary test. Also, before you start any troubleshooting, you need to capture a complete syslog that includes a period of time where you are actively experiencing the slow reads. Zip and post it here, along with the output of ethtool eth0 and ifconfig Quote Link to comment
Danieluwe Posted October 14, 2014 Author Share Posted October 14, 2014 Hi, I tried what you suggested and connected directly (wasn't even aware I could do that!!!) Speed was fluctuating but speeds between 50MB/s & 75MB/s Does this indicate that my switch is at fault in the setup? Thanks again Dan Quote Link to comment
Danieluwe Posted October 14, 2014 Author Share Posted October 14, 2014 As requested Linux 3.9.11p-unRAID. root@Tower:~# ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on MDI-X: Unknown Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000033 (51) Link detected: yes root@Tower:~# ifconfig eth0 Link encap:Ethernet HWaddr 50:e5:49:55:8e:1a inet addr:192.168.1.50 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:10149549 errors:0 dropped:2683 overruns:0 frame:0 TX packets:18892241 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:398421917 (379.9 MiB) TX bytes:3622961068 (3.3 GiB) Interrupt:43 Base address:0xe000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:95 errors:0 dropped:0 overruns:0 frame:0 TX packets:95 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:7773 (7.5 KiB) TX bytes:7773 (7.5 KiB) syslog.txt Quote Link to comment
Danieluwe Posted October 14, 2014 Author Share Posted October 14, 2014 Well found a brand new gigabit switch that I had lying around, swapped it out and problem solved speeds have shot up, Many thanks for the help Quote Link to comment
JonathanM Posted October 14, 2014 Share Posted October 14, 2014 Does this indicate that my switch is at fault in the setup? Well found a brand new gigabit switch that I had lying around, swapped it out and problem solved speeds have shot up ;D Glad I could help. Sometimes it's the simple things sitting right in front of you the whole time. Quote Link to comment
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