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Uses for a RAM disk?
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Mac Elite
Join Date: May 2002
Location: Los Angeles, CA.
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Offline
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Does anyone have some uses for a RAM disk?
The only two things I can think of is to:
1. let your music run off of a RAM disk to let the HD spin down to save power
2. seti@home off of it [let HD spin down]
any other ideas?
planning on using Esperance DV since I have 4gb RAM in the G5
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Posting Junkie
Join Date: Dec 2000
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Offline
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It's useful on a boot CD when something just has to be able to write a file somewhere.
Other than that, I can't think of much.
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Addicted to MacNN
Join Date: Jan 2003
Location: Great White North
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Online
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On the old Macs, like my 5400 you could install your OS into Ram disk and run your computer killer fast. OS 8.5 would boot up twice as fast from the ram disk then the hard drive. Problem is if you shutdown you lost the ram disk and had to copy it all over again. Newer Macs, the ones with open firmware like iMac originals, Blue and White G3s restarts would clear the ram too so you couldn’t do that any more. Also its a good place to set your browser caches to. Saves unneeded work for the hard drive, less small files cluttering up the hard drive and best of all it got cleaned out every time you turned your computer off and saved on file fragments being left on the drive. Its still useful for that.
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Brian says (9:16 AM): I was looking at houses in Ottawa... I actually have a temptation in me to move
Jeff ******* says (9:19 AM): Eww, Ottawa is gross. It's infested with politicians, and presently, 1 Harper as well.
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Dedicated MacNNer
Join Date: Jan 2002
Location: Washington DC
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It would be useful if you needed a system with no moving parts--either for reliability to guard against mechanical breakdown or for ruggedness such as in a field environment where it would get tossed around.
Also, if you want to use your old Mac as a router, running it from a ramdisk is a good idea. Some of the Linux routers don't have a hard drive at all, they boot from a floppy or CD and load onto a ramdisk.
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Addicted to MacNN
Join Date: Jan 2003
Location: Great White North
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Originally Posted by gbhgbh
It would be useful if you needed a system with no moving parts--either for reliability to guard against mechanical breakdown or for ruggedness such as in a field environment where it would get tossed around.
Also, if you want to use your old Mac as a router, running it from a ramdisk is a good idea. Some of the Linux routers don't have a hard drive at all, they boot from a floppy or CD and load onto a ramdisk.
Never thought of that use, that gives me a idea for my old 5400 The only reason its not running as a router now is because the noise of the hard drive. I could build a special restore CD and just run it off the Ramdisk, It has enough memory for System 7, and the routing software
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Brian says (9:16 AM): I was looking at houses in Ottawa... I actually have a temptation in me to move
Jeff ******* says (9:19 AM): Eww, Ottawa is gross. It's infested with politicians, and presently, 1 Harper as well.
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Mac Elite
Join Date: Oct 2004
Location: Downtown Austin, TX
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Originally Posted by Athens
Never thought of that use, that gives me a idea for my old 5400 The only reason its not running as a router now is because the noise of the hard drive. I could build a special restore CD and just run it off the Ramdisk, It has enough memory for System 7, and the routing software
Or you could put Linux on it and it would run great.
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Addicted to MacNN
Join Date: Jan 2003
Location: Great White North
Status:
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Originally Posted by jamil5454
Or you could put Linux on it and it would run great.
If I can get it to run in Ram only I dont want a hard drive in there. I know how to get linux going, I dont know complex stuff like making it run from ram only.
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Brian says (9:16 AM): I was looking at houses in Ottawa... I actually have a temptation in me to move
Jeff ******* says (9:19 AM): Eww, Ottawa is gross. It's infested with politicians, and presently, 1 Harper as well.
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Dedicated MacNNer
Join Date: Jan 2002
Location: Washington DC
Status:
Offline
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Addicted to MacNN
Join Date: Jan 2003
Location: Great White North
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Online
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last time I checked the 5400 was a pain in the ass to get most linux/bsds working on it. I might try Gentoo again since it now supports it
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Brian says (9:16 AM): I was looking at houses in Ottawa... I actually have a temptation in me to move
Jeff ******* says (9:19 AM): Eww, Ottawa is gross. It's infested with politicians, and presently, 1 Harper as well.
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Mac Enthusiast
Join Date: Oct 2004
Status:
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I think that's a great idea for caches. I wish Safari used Ram to cache stuff by default. I hate when I hit the back button on a page and there is a delay before it jumps to the right spot because I usually click somewhere else and end up going to another link.
Here is a way to make a Ram disk in OS X:
http://www.macosxhints.com/article.p...40827132909881
I think it should speed up browsing on laptops or Mac Minis with 4200 drives.
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