JohnBaker

Member
  • Content Count

    18
  • Joined

  • Last visited

Community Reputation

0 Neutral

About JohnBaker

  • Rank
    Member
  1. JohnBaker

    about NAS devices

    I have three NAS devices Linksys NSLU2 Thecus N2100 Synology DS207 The NSLU2 is clocked at 266Mhz, and I can get about 6MB/s R/W across the 100Mb/s network on a 120G USB2 HDD The N2100 is clocked at 600Mhz, and I have changed the menory from 128MB to 512MB of RAM. When using two 500GB in RAID 0, I get about 19MB/s W and upto 35MB/s R using 1000Mb./s network The Ds207 has 128MB of RAM and when used with two 500GB HDD in RAID1 I get about 9MB/s write and 19MB/s read using 1000M/s Network
  2. JohnBaker

    Supertrak 8350 maximum capacity?

    What OS are you using? 32 or 64bit? What firmware and drivers are you using on the 8350?
  3. JohnBaker

    Transparent web proxy question

    If most of your users are running IE, you can use WPAD via your DNS and/or your DHCP servers. The WPAD setting allows for users to to automatically get a proxy.pac file which allows you to configure multiple proxy settings, incliding bypasses. You would need to add the following DCHP option to your dhcp server option wpad code 252 = text; option wpad "http://www.example.com/proxy.pac"; Here is an example proxy.pac file. (please note that my proxy server (squid) is on 192.168.253.13) function FindProxyForURL( url, host) { if (isInNet(host,"127.0.0.1", "255.255.255.255")) {return "DIRECT";} if (shExpMatch( url, "http:*" )) {return "PROXY 192.168.253.13:8080;; DIRECT;";} else if (shExpMatch( url, "https:*" )) {return "PROXY 192.168.253.13:8080;; DIRECT;";} else {return "DIRECT";} }
  4. JohnBaker

    Gigabit Switch Recommendations

    Please note that changing the fans or opening the case will invalidate your warrantee. Please note that there are main electrical components inside. They main contain voltage even after the unit has been unplugged. I strongly suggest that you do not tamper with the switch. I went to maplins and purchased a standard 40mmx40mm fan. You can also use a 40mm cpu/chipset cooling fan (antec chipset cooler works very well). You need to make sure that it has a 3pin connector. I used a glue gun to mount the fans. This allows for the changing of fans without any major damage. Remove all screws and rack mount kit from the front of the unit. Keep them as you will need them. Unplug all cables from the switch (especially the power cable). Carefully Insert a 3-6mm flat screwdriver down the left and right size of the back panel. you need to 3-5mm in depth. slowly lever the back of the back panel off. There is a power cable connected to the panel. When you have undone the back unit, you will need to remove the top half of the switch chassis. This slides towards front of the switch. Therefore you will need to partially remove the front of the switch. Wiggle the front of the switch. Watch out for the serial port connector!! If all went well you should now have access to the switch. Good luck.
  5. JohnBaker

    Problem with Promise EX8350 Raid controller

    Just thought that I would let you know that Promise have relased a new bios (2.9.0.19) for the 83x0 series of raid cards. They have also released new Linux drivers. The bios upgrade does not, or did not at the time of my download, include instructions. Here is how I upgraded my card. Please note that this is not official, and I cannot provide and support if things go wrong. Make a bootable FDD, unpack the ZIP file on to the FDD. pflash /f bios 8350 bios2.9.0.19.bin pflash /f redboot 8350 rb83x0.bin pflash /f firmware 8350 firmware.bin Then reboot. I am seeing about a 10-15% increase in performance on a 6 disk raid 6 array.
  6. JohnBaker

    Problem with Promise EX8350 Raid controller

    You will also need to run the powermax diag tool against your disks. The disks will need to be removed from the promise raid card and connected to a non-raid sata controler. I still think that you have a disk problem. Powermax can do a quick check and may suggest a surface scan. This will help identify where your problem is. You will also need to run the powermax diag tool against your disks. The disks will need to be removed from the promise raid card and connected to a non-raid sata controler. I still think that you have a disk problem. Powermax can do a quick check and may suggest a surface scan. This will help identify where your problem is. I suggest using the bootable floppy or ISO CDROM version and this does not need to be installed and is operating system independent.
  7. JohnBaker

    Problem with Promise EX8350 Raid controller

    Migration is a very intensive process, especially if the disks are in use. Please run the disk vendor test disk (Powermax) on each of your drives. I had something similar to what you are experiencing and it turned out to be a disk error. Also you are running an older firmware version. Re-download the latest BIOS from promise. http://www.promise.com/support/download/do...l&os=100&go=GO# They re-issued the upgrade, without updating the website. This upgrades the firmware version to 1.2.0.17 BTW, what OS are you using? My mistake. You should re-download the latest BIOS, which contans an updated firmware. This is the first item listed on this page http://www.promise.com/support/download/do...os&os=100&go=GO I do not work for promise, and therefore I do not know what was changed.
  8. JohnBaker

    Problem with Promise EX8350 Raid controller

    Migration is a very intensive process, especially if the disks are in use. Please run the disk vendor test disk (Powermax) on each of your drives. I had something similar to what you are experiencing and it turned out to be a disk error. Also you are running an older firmware version. Re-download the latest BIOS from promise. http://www.promise.com/support/download/do...l&os=100&go=GO# They re-issued the upgrade, without updating the website. This upgrades the firmware version to 1.2.0.17 BTW, what OS are you using?
  9. JohnBaker

    Problem with Promise EX8350 Raid controller

    Hi, I recently had a similar problem with a new maxtor 6V250F0. It formatted OK, but I kept on getting LBA errors. I ran a BSL scan and it randomly reported and then cleared LBA errors. I ran the maxtor powermax disk tool, and it found some problems. I returned the driver and got a replacement. The error has now disappeared. BTW, trying to get maxtor to issue a firmware update for my drivers has been impossible. They want me to tell them about errors, and all I want is to firmware upgrade my drivers before I get any errors.
  10. JohnBaker

    Asus A8N-E PCI-E x4 runs at x2 only

    "The slot is only a 2x slot electrically!" So why do they advertise the board with a X4 slot? "Define poor." I have never seen transfer rates above 120MB/s on a 6 disk Raid 0,5 or 6 array. Raid 0 performs at the same speed as a Raid 5 array. The onboard NVidia Raid (Software) transfers between 160 and 250MB/S when using Raid 0 (Using 4 raptors or 4 maxtor disks) "And how did you get that x16 videocard in the x4 slot?" Becuase the X4 slot is open ended, you can plug a longer card in. I tried it and it worked. "Why are you contacting Asus if this doesn't cause the poor performance?" See above.
  11. I, like, most users of the Promise EX8350 Raid card am having poor performance. So I thought that I would use several software utilities to examine the PCI express speed. It seems that the PCI-Express X4 slot on the Asus A8N-E motherboard is not running at the full 4 lanes. Here is how I came to this conclusion. 1. PC Wizard reported that the X4 slot was only using 1 lane. 2. Sandra reported the same. 3. HWInfo32 reported that 2 lanes were in use. So, I thought that I would try something different. I swapped the EX8350 into the X16 slot and my NVIDIA 6200TC into the X4 slot. The system booted correctly and both the EX8350 and graphics card worked. I had to reactivate my Windows due to the hardware change. Re-install the video drivers and all is well. Now here is the interesting bit. The NVIDIA 6200TC reports that it is running at X2. HWInfo32 reports that the EX8350 is now use 4 lanes (X4) Now this has not helped my performance. According to the Asus manual, the slot is a full X4. I will try to contact Asus, but I dont expect them to help (As usual).
  12. JohnBaker

    Promise SuperTrak EX8350 PCIe x4

    It seems that the promise card has problems with some seagate drives. Have a look at the compatablilty list. The old webpam & bios uses to have NCQ but the new version removes it. I have also contacted promise support about the slow transfer speed. They will only accept IOMETER benchamrks. 100% read and then 100% write. Whe I did the IOMETER benchmark for them, my write was over 250MB/s but the read was peaking at 110MB. Something it not right. I would suggest that anyone looking for a decent Raid 6 card look elsewhere.
  13. JohnBaker

    Harddisk active cooling

    I use a mixture of 3 and 4 disk SATA bay caddys which act as a heatsink and also have active cooling. It keeps my disks cool and allows for greater storage (12 disks in system at the moment)
  14. JohnBaker

    Gigabit Switch Recommendations

    I am using the Linksys SRW2016 16-Port 10/100/1000 Gigabit Switch (They also do a 24port version) They are around £250 pounds for the 16 port version. You might want to replace the 40mm fans (Like I have), as the default ones are loud. It supports VLAN, and is configured via a web interface. I am also using Jumbo frames. One thing to point out, no matter how good the switch that you use, unless your Ethernet cards support advanced features (E.G. TCP checksum offloading) you may have performance problems. BTW, avoid the NVIDIA onboard Ethernet interfaces. I am adding Intel or Broadcom Ethernet cards to all NVIDIA systems, due to corruption issues with NVIDIA.