Danieluwe

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

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

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

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

18 Total 1x WD Red 4tb Parity 17x Data drives mixed between 2tb WD greens, 3tb WD greens and 2x 4tb WD Reds for a total storage of 41TB! totally maxed out my case now though!

Just put my order in, thanks for the offer

There is nothing else connected to the controller and the server hasn't even been doing anything, I've left it alone during the pre-clear, I checked the syslog, but there was nothing out of the ordinary on it, just normal ip lease requests and disc spindowns since the preclear started, I will wait for the preclear to finish before I start to worry too much, but is quite unusual never seen a drive speed vary so much during a preclear Ps just hit post read and back up to 120MB/s very strange

Just fitted a sil3132 card into my server to give a couple of extra slots, attached a new IBm 3tb coolspin and started the preclear, pre read ran through at between 120MB/s and 80MB/s pretty normal for my server, it has moved onto stage 2 copying zeros but has been running at 36MB/s consistently for the entire time I'm onto 22hrs elapsed and only 50% into writing zeros, Anyone have any idea what can cause this behaviour?? Many thanks in advance Dan

Thanks for the reply, I was thinking the drive was DOA but hoping that as it was the same error repeated it may have been salvageable, Never mind, it will be my 2nd RMA out of 6 drives!

Hi, Just fitted a new WD EARS 2TB drive into my server, On preclear transfer rates drop from 100MB/s to 5MB/s, I did a short smart test and found that although it shows as passed there was 1600 errors showing as far as I can tell it is the same error repeated over and over, Can anyone interpret this result for me to see if its terminal or not, Many thanks in advance Error 1670 occurred at disk power-on lifetime: 5 hours (0 days + 5 hours) When the command that caused the error occurred, the device was active or idle . After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 01 51 08 20 63 28 ea Error: AMNF 8 sectors at LBA = 0x0a286320 = 170418976 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 08 20 63 28 ea 08 03:33:15.013 READ DMA ef 10 02 00 00 00 a0 08 03:33:15.013 SET FEATURES [Reserved for Serial A TA] ec 00 00 00 00 00 a0 08 03:33:15.009 IDENTIFY DEVICE ef 03 42 00 00 00 a0 08 03:33:15.009 SET FEATURES [set transfer mode]

Quick question, Just received 2 new 2TB Drives a WD EARS and a Samsung F3, stuck them in the server and started the preclear on both, (my server has happily precleared multiple drives before) My Samsung is running fine at around 80MB/s, the EARS starts at around 100MB/s but within a few minutes drops to 5MB/s and after an hour is not even registering a speed, I have stopped and retried preclear twice on this drive, I have smartctl'd the drive and although it shows a pass it also shows 1670 ATA errors in the five hours it has been powered up, Any suggestions? Thanks in advance!

It indicates that three of the blocks read back DID NOT have all zeros as expected. This is the type of situation that causes hair loss (and parity checks that occasionally/constantly return parity errors) The cause can be a bad drive (we've seen this several times with other users) or a bad disk controller (also seen several times) or a bad power supply (power supply noise caused the writes to not function properly) or temperature (disks got too hot and were unable to read their own tracks because of thermal expansion) or vibration (disks shaking made them unable to write accurately) or even the motherboard chipset (nforce4 chipsets on early motherboards were prone to this) It cold also be your RAM, if it is not configured properly in your BIOS with the correct voltage, clock speed, and timing. (run a memtest overnight to eliminate it as a suspect) Good luck in isolating the issue. I'd not use that drive in that server connected/configured as it current is until you can get through several more pre-clear cycles with NO errors. Unfortunately, this class of error is frequently not detectable by any other test other than reading the contents of the disk. You might be lucky and see actual errors in the system log, but there are odds you will not see any error in the syslog and no errors in the smart report. I know, it is not good news... but I would not trust a server where the data I wrote was not readable accurately, even if it was only four times during the post-read. This class of error is EXACTLY why I added the post-read verify to the pre-clear script. Prior to it being added, there was no way to learn of the bad disk/controller/??? until AFTER it was in the array and you had stored data on it and subsequently dis a parity check. By then, it is MUCH harder to figure out which disk is causing the intermittent parity errors. Joe L. Many thanks for the quick reply, I've run a thorough memtest returning no errors and have run three WD EARS drives through a preclear with no problems, i will try another preclear before i get rid of the drive but pretty happy that the server hardware is up to scratch, Thanks again for the input it is appreciated.

Just got the following result on a preclear, not sure how to interpret the results Any help would be appreciated. Uploaded with ImageShack.us Many thanks in advance