logical1

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Everything posted by logical1

  1. In order to get the 40% loss mentioned earlier, you'd need 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000B Drive size ~ 652,530,447,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000B Useable size This is almost 35% less than what would be advertised. At least it has a while to go before getting this bad.
  2. Well, you may have a while before reaching the 40% lost number since each 1000-fold increase in size produces a 2.4% discrepancy in advertised vs useable capacity. We will have to have 1.1TB advertised capacities to actually get 1TB of drive space that is useable. I really wish the manufacturers would end the 1000=1024 game with drive capacity advertisements and use the same 1024=1024 that the OS and most normal people are using since it is truly frustrating to see a drive advertised at 200GB only to format it and see that their idea of a GB and your OS's idea of a GB are a bit different. It's going to keep going on like this: Advertised size -> Useable size 10^9B=1GB -> 0.93GB 10^10B=10GB -> 9.31GB 10^11B=100GB -> 93.13GB 10^12B=1TB -> 0.91TB 10^13B=10TB -> 9.09TB 10^14B=100TB -> 90.94TB 10^15B=1PB -> 0.89PB
  3. logical1

    Norton Ghost '02 problem

    That failing, make the drive active if it isn't.
  4. logical1

    How Many Power on Hours?

    Model Number : Maxtor 92048D8 Firmware Version : NAN4251A Serial Number : W8031DRA Drive Size : 20.480 GB [09] Power On Hours Count Advisory 0 157 157 2002482 [0C] Power Cycle Count Advisory 0 252 252 427 Since this is a Maxtor, that would be: 2,002,482 minutes = 33,374.7 hours = 1,390.6125 days = 3.81 years This is the OS drive in one of my file servers that just kinda keeps going. It's a shame I can't pull the SMART stats from the 18gb 2nd gen Cheetah in the same system since that drive has been in there longer.
  5. logical1

    Running Internet Explorer within SSL

    You know, if someone has written a Java-based web browser that could fetch the URLs as coming from the address of the server it was housed on, you'd be able to do what you're asking by running the applet within a SSL session. ANother way may be to code some kind of SSI that would grab the page on the server and present it to you like a proxy server except embedded within a webpage so that it is encrypted between you and the server you are taling to and then is unencrypted from there on unless the site supports otherwise.
  6. logical1

    Recover data from failed RAID-0 array?

    You said data over 1kb is corrupted? Did you have any text files in that mix that were larger than 1kb? If so, open them and see where they start to become corrupted since some text editors can tell you how many bytes into the file you are, you can probably figure your stripe size for the array from that and then re-run RAID Reconstructor with that size stripe and it only has to figure out drive order. I can't imagine a stripe size of only 1kb. I'd think at minimum 16kb and possibly any of 16, 32, 64, 128, or 256kb for the stripe size.
  7. logical1

    Recover data from failed RAID-0 array?

    RunTime's RAID Reconstructor as long as you have somewhere to copy the data to and both drives are pretty much intact. It can rebuild the array contents onto a single drive image elsewhere from there you can run data recovery or instead of an image, write the data to a fresh drive and just boot off it instead.
  8. logical1

    How to improve SCSI write speed

    Haven't tried making two arrays (it's got about 200gb of data on the array and backing up and restoring takes a bit of time to be testing repeatedly. I haven't had issues like this before in using both interal and external buses as long as there is proper termination. Also, to give a better idea of the cabling, it is setup where there is one external channel on the card that is wired directly to the cabinet and the other channel is internal with the card in the middle of the cable and one end going to the back of the case where it meets a connector to convert it from M to F to allow another cable to be plugged into it to run to the other channel of the external case and then the remainder of the cable after attaching to the card runs to th 3 internal drives and to a terminator on the cable.
  9. I have a Compaq Smart Array 2/P with 4mb cache (dual channel UW) in a Proliant ML350 Server. I have Giganet cLAN1000 cards and a cluster switch connecting it to my other servers at 1Gb/sec on a 7us latency connection. I have 11 50gb Seagate Barracuda drives over both channels of the controller (7 on one channel and 4 on the other) in a RAID5 array on the controller with the cache set 75/25 for writes/reads respectively. I cannot seem to get over 5mb/sec for the writes though even with the controller being the only thing on the bus and the drive that the data is coming off of over the network is a RAID0 set of two MAS3367NP's. The Giganet card in the server is on the 64-bit bus by itself and the one that the data is coming off of is on a PCI bus with other cards in a 32-bit slot, but can sustain over 20mb/sec to the same server's primary drive (9gb Barracuda). What can I do to improve my write performance for the RAID5 since I know the card has to be capable of writing data to disk at more than 5mb/sec? I'm hoping to eventually get a Smart Array 3200 I have in another server into this machine and add it's second CPU (P3-866) soon, but I don't think that should have that great an affect on write performance. All drivers for all devices are current in the system and it is running Windows 2003 Enterprise. Thanks, Logical One
  10. logical1

    How to improve SCSI write speed

    Indexing is off and I can't really test the cables at the moment other than to say that I have used them before and had much higher transfer rates in the systems they were used in.
  11. logical1

    How to improve SCSI write speed

    The drives are in the chassis for the server (Proliant ML350) and in an external Proliant Storage System UE cabinet (2 UW channels with 4x1.6" (or 6x1") drives each. The cabinet is connected with the cables that Compaq provided for connecting the external cabinet to the card and termination is set for automatic. Nothing else uses the drive for anything as the server that it is on is purely for file storage/serving. No other apps run on it except an SAV client that links to my main server. There is no NTFS compression turned on on the drive either. What are some good benchmarks that will give the numbers I need to find the I/O information? IOMeter?
  12. logical1

    How to improve SCSI write speed

    I am getting a better controller, but will that help get the writes over 5mb/sec? Also, I haven't had much success finding an I/O rate fror this drive to even get an idea what to expect for it.
  13. logical1

    How to improve SCSI write speed

    Yes, it shouldn't be that slow. Yes, they are 50gb Barracudas with Seagate model number ST150176LC. I have a 3200 (two channel version of the 4200) already in a server that is about to be decommissioned after it is upgraded. Yes, the 2/P does do hardware RAID5. The only thing besides a small cache that really irks me about the controller is that it will only use a 16k stripe size. Now while I don't much care for that either, none of the things I have mentioned should limit it to 5mb/sec writes to the array since any given drive can do about 15-20mb/sec for writes. The parity calculations done on the card can't be killing performance that much.
  14. logical1

    Compaq NIC?

    It'll work just fine in Linux with kernel driver support for it since at least the 2.0 series kernels. It is a Netelligent card and Compaq made versions of that card with ThunderLAN and Intel chips on them. I've also seen dual port version that had a DEC PCI-to-PCI bridge chip on them as well.
  15. logical1

    Pagefile Vm

    This is true. Also, more info can be found in this thread: http://forums.2cpu.com/showthread.php?s=&threadid=53719 http://forums.2cpu.com/showthread.php?s=&threadid=10062 Both of those should answer what you want to know.
  16. logical1

    Recertified Hard Drives

    I just added 11 Seagate 50gb SCSI drives to an array. All drives were recertified. I'll let everyone know what happens. I don't recall what the warranty was, but at $34/drive, I didn't much care.
  17. I find it odd that I see people complaining about the heat generated by the Intel chips, but my P4EE at 3.2Ghz runs at 89F under minimal load and no more than 110F under 100% load using the stock Intel HSF. I know the Prescott core procs run a bit warmer, but that is likely because they also use 117 watts of power on the 3.4Ghz model. The Northwood core-based EE doesn't seem to run quite as warm though.
  18. logical1

    Xp Login Problems

    Could simply be a "net logoff" command in the Run key of the registry.
  19. logical1

    Remote Desktop Over Ssl?

    This page has what info you're looking for: http://www.isaserver.org/tutorials/How_to_...rnate_Port.html
  20. logical1

    Remote Desktop Over Ssl?

    As far as the web interface for RD goes, you'll have to modify the code for the page to change the port it connects to. It isn't something you can specify on the page unless you redesign the page itself.
  21. To check IRQ sharing, right-click My Computer and choose Manage. From there, go to Device Manager and left-click that. Click on the View menu at the top and choose Resources by Type. Click the [+] by Interrupt Request (IRQ). Look for things sharing IRQs. Look especially for the SATA Controller and your video or sound card to be sharing one.
  22. You still haven't really answered the question: are any devices sharing an IRQ with the SATA controller (according to the BIOS, not Windows)?
  23. Are the video card and the SATA controller sharing an IRQ (according to the BIOS, not Windows)?
  24. That is only half true. Two IDE devices can share the same bus provided that the OS is not trying to access both devices simultaneously as would happen in an array setup. The idea behind striping in an array is to spread the data over multiple drives that can be read concurrently in order to speed up sequential transfers. Since IDE only allows a single device on a channel to be active at any given time, then it negates the benefit of the array and actually decreases the performance to have an array on Master and Slave of an IDE channel since not only do you have the drive access occuring, but you have the additional overhead of the commands necessary to talk to each drive and some amount of contention for the utilization of the bus. This is one area where SCSI differs in that it allows a drive to disconnect from the bus while processing a command such that multiple devices can be accessed in a seemingly more simultaneous way. Thanks though for the info about allowing the drives to be moved. I wasn't sure if the info was stored on the drive or on the system and that info just said that the drives in these positions were part of the array and then the array would be lost if the drives were moved from those positions. Thanks
  25. Has anyone rearranged the order of drives in a software RAID 5 under Windows 2000 Server before? I have 6 drives in a RAID5 on one of my systems at home and they are on 3 channels currently. Since the performance is (as expected) abyssmal when trying to write to these drives (moreso than what would be expected for RAID 5 writes which I know are slower anyway), I was going to put in another spare IDE controller I had lying around if I can determine that I would be able to do so and spread the drives out over 6 channels without losing any of the data on them. Thanks