rxnelson Posted October 22, 2008 Share Posted October 22, 2008 I am still toying with the free version. The main use for this is going to be video storage so I am testing specifically for stuttering. When I use the onboard 100mb NIC of my A7N8X mobo I can write to "disk2" while watching a movie from "disk1" without stutter. I had a 1000mb realtec NIC I swapped in and I can't do the same. The movie stutters. I then bought an Intel NIC thinking it was a driver issue but have the same results. Any ideas? Link to comment
WeeboTech Posted October 22, 2008 Share Posted October 22, 2008 How much data, and how fast are you writing to the disk while reading from the other disk. There is only so much buffering that can be done before one has an impact over the other. How much ram do you have on your machine? You may need to post a syslog so people can get a picture of the hardware installed. Link to comment
bubbaQ Posted October 22, 2008 Share Posted October 22, 2008 Sounds like a transport issue ... not a server issue. Do you have all Cat5+/Cat6 and good switches? What is your latency? You need to post actual throughput numbers in order to know where to look. Install bwm-ng. Link to comment
rxnelson Posted October 22, 2008 Author Share Posted October 22, 2008 syslog attached Switch should be OK. In windows I can transfer about a gig a minute? I am linux/unix retarded. I will have to find out what bwm-ng is and how to install. Thanks. Link to comment
rxnelson Posted October 23, 2008 Author Share Posted October 23, 2008 OK I got the bwm-ng but haven't been able to figure out how to run it. I tried to use installpkg and I think it told me it doesn't end in .tgz Directions for dummys? Link to comment
bubbaQ Posted October 23, 2008 Share Posted October 23, 2008 Download it from here: http://linuxpackages.cs.utah.edu//Slackware-12.0/Console/bwm-ng/bwm-ng-0.6-i486-1tfn.tgz and run installpkg Link to comment
rxnelson Posted October 23, 2008 Author Share Posted October 23, 2008 OK more stupid questions. Should the file be located on the flash or on the hard drives? Can I do it from a telnet session? Do I need to get to a certain directory first? Sorry......all new to me. Link to comment
rxnelson Posted October 23, 2008 Author Share Posted October 23, 2008 OK...found one of your other posts with a screen shot. I have it running now I think. Just start transferring and tell you what I get? I have eth0 which bounces all over the place when I transfer a file. There are three columns. Just tell me what to do and what to report thanks. Link to comment
bubbaQ Posted October 23, 2008 Share Posted October 23, 2008 press the "t" key 3 times, so the type of display is (30s) meaning a 30 second average. Then report the Rx and Tx for eth0 when writing to unRAID, and again when reading from it. Then press q to end bwm-ng. Then start your reads and writes, and while they are running, run: vmstat 5 10 and look at the last column, "wa" in particular. A high value here means your CPU/LAN is waiting for on a slow disk. Link to comment
rxnelson Posted October 23, 2008 Author Share Posted October 23, 2008 on writing the three numbers were around 13000, 270, 813000 on reading the three numbers were around 120, 11700, and 811000 wa on writing went up to 34 once wa on reading stayed at zero. Link to comment
bubbaQ Posted October 23, 2008 Share Posted October 23, 2008 Please include the units on the numbers.... without units, there is no way to know what they are. Also, please only report the Rx and Tx for eth0.... not the totals and not the loopback (lo) device. Link to comment
rxnelson Posted October 24, 2008 Author Share Posted October 24, 2008 writing max around 10000 KB/s, 400 KB/ss reading max around 175 KB/s, 17400 KB/ss That help any? Link to comment
bubbaQ Posted October 24, 2008 Share Posted October 24, 2008 Good. 10MB/sec writing and 17MB/sec reading. Was the vmstat output the same as before?.... wa=0 while the reads and writes are ongoing? Link to comment
rxnelson Posted October 27, 2008 Author Share Posted October 27, 2008 No wa while writing to UNRAID bounced around all over the place. It peaked at 49, hit 44 once. A couple times in thirties...etc. wa while reading from UNRAID hovered around 50. Not sure why it was different this time. Link to comment
bubbaQ Posted October 29, 2008 Share Posted October 29, 2008 Can you post the output from ethtool? Link to comment
rxnelson Posted October 29, 2008 Author Share Posted October 29, 2008 This what you want? 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 auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on Supports Wake-on: umbg Wake-on: g Current message level: 0x00000007 (7) Link detected: yes Link to comment
bubbaQ Posted November 3, 2008 Share Posted November 3, 2008 You said you had good transfer between Windows PCs... was that using SMB or something else? Have you swapped out the patch cable to the unRAID box? Changed ports on the switch? Link to comment
Recommended Posts
Archived
This topic is now archived and is closed to further replies.