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EM

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Posts posted by EM


  1. http://www.storagereview.com/welcome.pl/...raid/index.html has a great description of Raid. From what I understand, even Raid 0 uses the size of the smallest drive as the baseline, so if you have a 20 and a 30g drive, with raid 0 you end up with one 40g drive, striped for performance rather than redundancy. JBOD is one option that most raid controllers have, basically drive spanning with no redundancy or performance enhancements...that would give you a 50g drive with the two in the example.

     

    The above website has a paragraph that says "While common parlance for calculating storage says to multiply the number of data-containing drives by the capacity of the drives, bear in mind that this assumes that all the drives are of the same size (which is the ideal way to set up a RAID array). In fact, the capacity of any RAID array is constrained by the size of the smallest drive in the array; it is that size that should be used when calculating capacity. So, the capacity of a RAID 5 array containing four drives that are 20 GB, 30 GB, 40 GB and 45 GB in size is 60 GB (calculated as 4-1 times 20 GB, the size of the smallest drive.) If you were to actually set up an array using such drives, 55 GB of space would be lost in what is sometimes called drive waste. If an array has drive waste due to unequal drive sizes, this will reduce the storage efficiency of the array as well, of course: the RAID 5 array given as an example here has a storage efficiency of (60 / 135) = 44%, instead of the 75% that would result if all the drives were the same size. Some controllers will let you use such "waste" as regular, non-RAID storage. See this discussion of drive size for related issues."

     

    There is also a table on that webpage under Summary Comparison of RAID Levels that shows the capacity and storage efficiency of each level of RAID and that table show that RAID 0 uses 2x the smallest drive as its capacity.

     

    Speaking from experience, I have a SCSI raid setup in Raid 0 and I can tell you that when I used to use two drives of different capacity (both 18.2 but different manufacturers so still slightly different capacities) I only have 2x the smallest capacity drive.

     

    Ed


  2. Any number of things can cause lockups. Changing the CPU only normally doesn't have any affect on the system other than a speed increase. Your post is a little unclear about how many processors you have installed. Also what motherboard are you using? What about memory? Is you memory PC133 or is it PC100? Changing the fsb to accomodate a new processor can cause memory instabilities if the memory is not rated for the new speed.

     

    Ed


  3. My experience with Nvidia and XP sucks. BSOD over and over with NV4_disp.dll named as the culprit. Tried numerous drivers and have finally just ditched it in favor of the ATI Radeon 8500. Not too many issues so far but I have only had it one day.

     

    Ed


  4. I have one...but have never used it. Bought it used and am not able to install XP Pro on it on my Tiger MP dual Athlon board. I can install WinME so I know it works but since ME sucks goats and isn't dual capable, I don't use my Promise card.

     

    Anybody have any ideas as to installing it on a Tiger MP let me know.

     

    Ed


  5. If it helps any, I couldn't get my Promise Fasttrak100 TX4 to work with XP either....Tyan Tiger MP motherboard.

     

    Went and bought a Rocket100 Raid by MicroAurora (uses Highpoint instead of Promise) which works just fine.

     

    Ed


  6. Quote:



    No! Was WAY WAY too long, & I hit those links & they are WAY Slow... get me a page with a graph!

    * I am busy on something here. I cannot spend alot of time reading this evening... got a graph of anything like that page at Tom's Hardware page does, showing what I have been asking all nite?

    APK


    After reading through this whole LONG discussion, this particular question came to my mind. Why is it that Mr. AlecStaar has no time to read the presented evidence yet he has seemingly unlimited time to write LONG posts in response to the evidence presented? confused Just wondering. laugh

    As for myself, I use a water cooling setup with a copper radiator and copper waterblocks. My reasons for using copper in the waterblocks is to help in the prevention of corrosion with dissimilar metals and the radiator was already copper. As to which is better? I have no idea, just buy whatever works best for you. I like the watercooling because it is MUCH quieter on my dual system. Maybe a couple of Dragon Orb 3's with the 7500 rpm fans would cool better but the freaking noise would drive me even more insane than I already am. laugh

  7. Are you running a hacked executable, No-cd patch anything? RC1, RC2, Release version of XP? I have no troubles running the Sims or The Livin' Large add-on on any of my systems....And I paid for all three of my computers to run XP legally.

     

    Ed


  8. I did find a thread on www.2cpu.com that said the following:

     

    "Did you know that by replacing 11 files on a retail Windows XP CD for an existing corporate edition CD, you can turn it into an unactivated corporate version? This has been tested and it does successfully work! It is important to note that this does NOT hack Windows XP in any way, it merely bypasses WPA. You do, however, need a valid 25-character PLK. It will be interesting to see if Microsoft fixes this loophole in the first service pack release. I have not monitored my traffic logs through our checkpoint firewall to see what was communicated yet... I really am surprised Microsoft would leave such an obvious and easily exploitable method to get around WPA. The files you need to replace are:

     

    i386\dpcdll.dl_

    i386\eula.txt *** cosmetic only

    i386\nt5inf.ca_

    i386\oembios.bi_

    i386\oembios.ca_

    i386\oembios.da_

    i386\oembios.si_

    i386\pidgen.dll

    i386\setupp.ini

    i386\setupreg.hiv

    i386\win9xupg\win95upg.inf

    End quote.

     

     

    I would guess from this that the files are different on the corporate version. More than just the code to disable WPA.

     

    Ed

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