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| Thread ID: 77413 | 2007-03-08 21:54:00 | Why Use A Cap Limit? | SurferJoe46 (51) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 531304 | 2007-03-08 21:54:00 | I don't understand why there is the ability to put a jumper in a certain position on the harddrive and limit it's capacity. Why? :confused: Seems kinda silly to me when you pay for a drive then cripple part of it. :waughh: |
SurferJoe46 (51) | ||
| 531305 | 2007-03-08 22:09:00 | "The only time these reduction jumpers really make sense is when you use them in conjunction with drive overlay software--in some cases, without the jumpers you may not even be able to get the system booted so you can install the overlay! " www.storagereview.com | PaulD (232) | ||
| 531306 | 2007-03-09 00:49:00 | OK>..that's good.....now, what's an "overlay"? | SurferJoe46 (51) | ||
| 531307 | 2007-03-09 01:19:00 | Come on SurferJoe, go to the menu at the top of the linked page and click on "Software Translation Drivers (Dynamic Drive Overlays)" That guide will explain pretty much anything you need to know about hard drives. |
PaulD (232) | ||
| 531308 | 2007-03-09 02:41:00 | hm.........yes it 'panders' to bios drive size limitations....however with DDO software.....(dynamic drive overlay) ive found that if you simply set up the drive in the bios to some random size which the bios WILL recognise, even if it's not the actual drive size, then as it 'recognises' a drive you can then apply the DDO software and overcome any bios limitations...... | drcspy (146) | ||
| 531309 | 2007-03-09 04:27:00 | Come on SurferJoe, go to the menu at the top of the linked page and click on "Software Translation Drivers (Dynamic Drive Overlays)" That guide will explain pretty much anything you need to know about hard drives. I was hoping for non-geek interpretation...hmmmm.... (must be getting too old to read technoese.) |
SurferJoe46 (51) | ||
| 531310 | 2007-03-09 06:44:00 | I was hoping for non-geek interpretation...hmmmm.... (must be getting too old to read technoese.) Um, lets see, cause you're a weird person and want to make your nice big HDD a lot smaller? :D |
pctek (84) | ||
| 531311 | 2007-03-09 07:30:00 | Nope - it's useful in making older BIOSes boot from newer HDDs. An example is the ChatF1 server - it wouldn't boot from the 250GB HDD until we set the 32GB limit jumper and moved /boot to somewhere the bios could see. | Erayd (23) | ||
| 531312 | 2007-03-09 12:19:00 | It's a work-around for foolish assumptions that were made in the early BIOS routines. In much the same way that early machines assumed that the year 2000 would not arrive before the warranty ran out, 110 volts was enough mains voltage for domestic use and nobody would ever need more than 640Kb of RAM, BIOS manufacturers assumed the largest possible drive for PCs would never reach 32GB. To fool the BIOS and let the system start up, it lies about the H/D size. The system also lies about the number of tracks and heads, but it works. (Now if you throw Terrabytes and other astronomy numbers around, you won't just need jumpers, you'll need rocket launchers.) |
R2x1 (4628) | ||
| 531313 | 2007-03-09 14:23:00 | It's a work-around for foolish assumptions that were made in the early BIOS routines . In much the same way that early machines assumed that the year 2000 would not arrive before the warranty ran out, 110 volts was enough mains voltage for domestic use and nobody would ever need more than 640Kb of RAM, BIOS manufacturers assumed the largest possible drive for PCs would never reach 32GB . To fool the BIOS and let the system start up, it lies about the H/D size . The system also lies about the number of tracks and heads, but it works . (Now if you throw Terrabytes and other astronomy numbers around, you won't just need jumpers, you'll need rocket launchers . ) TY R2x1 . . a lot easier to follow . . Some of this hardware info is 'way out of my area . . . . I lost a lot of time when I dropped computers and codes for about 12 or so years . . . and that was during the time of some of the greatest baseline innovations and foundational techniques in computers . Right after the C>64 death in the US, I got sidetracked into other things like owning my own diesel shop which gobbled all my time . I am playing catch up now . . . and trying to throw in Mepis and Ubuntu is frosting on my tired and old grey matter . I really appreciate the simpler info you gave me, although I realize I need to be more up to speed on these things (cylinders . heads, sectors . . etc), but right now I am trying to digest a lot of terminology The biggest problem is the techno-ese that I need to digest and find a lot of the acronyms a little tough . My learning curve has a serious bump in it (that time when I was out of the loop) where the arc becomes a very vertical line . I am, however, trying to go toward the light . It's good to have people here who understand these things and can make them a little less muddy for me . Again . . . thanks :thumbs: . |
SurferJoe46 (51) | ||
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