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Topic: RAM disk

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	RAM disk - Wikipedia, the free encyclopedia
		RAM disks were popular as boot media in the 1980s, when hard drives were expensive, floppy drives were slow, and a few systems, such as the Amiga series and the Apple IIgs, supported booting from a RAM disk.
		A proper disk cache in the operating system will usually obviate the performance motivation for a RAM disk; a disk cache fulfills a similar role (fast access to data that is notionally stored on a disk) without the various penalties (data loss in the event of power loss, static partitioning, etc.).
		RAM disks are, however, indispensable in situations in which a physical disk is not available, or where access to, or changing a physical disk is not desirable (such as in the case of LiveCDs).
	en.wikipedia.org /wiki/RAM_disk (453 words)

	Random access memory - Wikipedia, the free encyclopedia
		Technically, RAM devices are not limited to memory chips, and random-access memory as a storage format is not limited to use as working memory.
		Modern RAM generally stores a bit of data as either a charge in a capacitor, as in "dynamic RAM," or the state of a flip-flop, as in "static RAM".
		Software can "partition" a portion of a computer's RAM, allowing it to act as a much-faster hard drive, which is referred to as a RAM disk.
	en.wikipedia.org /wiki/RAM (1241 words)

	RAM disk (Site not responding. Last check: 2007-11-05)
		A RAM disk or RAMdrive is a segment of active computer RAM which is being used as secondary storage typically a role for a disk drive.
		A proper disk cache in the operating system will usually obviate the performance motivation a RAM disk; a disk cache fulfills similar role (fast access to data that notionally stored on a disk) without the penalties (data loss in the event of loss static partitioning etc.).
		RAM disks are indispensable in situations in which a physical is not available.
	www.freeglossary.com /RAM_drive (325 words)

	RAM disk comparisons (Site not responding. Last check: 2007-11-05)
		RAM disk saves which are prompt enough to allow confident software development without fear of losing data to a crash or power outage.
		Apple's RAM disk is included with the operating system, so its price is absorbed by the cost of the entire operating system.
		To clarify the relative performance of each RAM disk at each chunk size, the 100% level was arbitrarily set to the fastest RAM disk tested at each chunk size.
	www.clarkwoodsoftware.com /rambunctious/comparecontent.html (777 words)

	Encyclopedia: RAM disk
		Solid state disk (SSD, also called solid state drive) is a data storage device that uses memory chips, such as SDRAMs, to store data, instead of the spinning platters found in conventional hard disk drives.
		See Filing system for this term as it is used in libraries and offices In computing, a file system is a method for storing and organizing computer files and the data they contain to make it easy to find and access them.
		In computer engineering, hard disk drive partitioning is the creation of logical divisions upon a hard disk that allows one to apply operating system-specific logical formatting.
	www.nationmaster.com /encyclopedia/RAM-disk (922 words)

	What is RAM disk? - A Word Definition From the Webopedia Computer Dictionary
		RAM disks, however, are approximately a thousand times faster than hard disk drives.
		Because they are made of normal RAM, RAM disks lose their contents once the computer is turned off.
		To use a RAM disk, therefore, you need to copy files from a real hard disk at the beginning of the session and then copy the files back to the hard disk before you turn the computer off.
	www.webopedia.com /TERM/R/RAM_disk.html (261 words)

	RAM Disk (Site not responding. Last check: 2007-11-05)
		A RAM disk is a virtual disk, created by software including a special driver, that uses the computer's RAM (Random Access Memory, main memory) to store its data.
		RAM disk software is readily and freely available (see http://www.google.com/search?q=ram-disk+windows).
		By installing a RAM disk, you can easily get into a situation that is akin to stealing the diamonds from your wife (supposing you're male) and selling them back to her for a higher price.
	www.michna.com /kb/wxramdisk.htm (273 words)

	HandWatch, Inc.
		RAM Disk is a virtual disk that allows for temporary storage that's extremely fast.
		When the data in Palm RAM Disk is not needed, or the memory occupied by it is to be needed, simply release the memory.
		RAM Disk prompts a dialog saying it is ready to be udpated via HotSync.
	www.handwatch.com /handwatch/fetch.php3?form_sec_name=PalmRamDisk (1177 words)

	RAM disk - Definition of RAM disk by Webster's Online Dictionary (Site not responding. Last check: 2007-11-05)
		RAM disk - (computer science) a virtual drive that is created by setting aside part of the random-access memory to use as if it were a group of sectors; "access to a RAM disk is very fast but the data it contains is lost when the system is turned off"
		RAM disk - A memory-resident program which mimics a hard disk drive.
		Unlike a real disk drive, this drive forgets all stored data when the computer is turned off.
	www.webster-dictionary.org /definition/RAM%20disk (129 words)

	Ram Disk - Visual FoxPro Wiki
		A Ram Disk is a drive created in memory.
		A Ram Disk size may be arbitrary, but is rounded up to the next larger multiple of the allocation unit as determined by the vendor and the size of the drive.
		Ram Disk creates a virtual disk drive to store files in non-swapable physical memory.
	fox.wikis.com /wc.dll?Wiki~RamDisk~SoftwareEng (448 words)

	How to make a ram disk
		The most important part of this ram disk image is
		Make sure ram disk support is compiled in your kernel.
		Mount the ram disk as you would a regular device:
	surfer.nmr.mgh.harvard.edu /partition/ramdisk.html (355 words)

	G4 - Feature - Make a RAM Drive
		A RAM drive (or RAM disk depending on who you ask) is a TSR (terminate and stay resident) program that allows system RAM to simulate a disk drive.
		To use the RAM drive within the upper memory bounds, expanded memory, or extended memory, you must specify the appropriate drivers before the ramdrive.sys entry in the config.sys file.
		When you use a RAM disk in Windows the drive will have a chip icon instead of the drive icon.
	www.g4tv.com /techtvvault/features/14799/Make_a_RAM_Drive.html (342 words)

	Connectix Maxima (Site not responding. Last check: 2007-11-05)
		Once established, the disk size can be increased, decreased (if made too small, some items will not load onto the RAM disk, but will remain on the hard drive), deactivated, or deleted (I've used the delete function numerous times due to partition limitations).
		The real use of a RAM disk is in what you store on it, and here is where I feel that the manual is dated.
		Apple provides a basic RAM disk capability with System 7, but it is not as flexible nor as easy to use as Maxima.
	www.hmug.org /Reviews/Maxima (691 words)

	Linux Ramdisk mini-HOWTO
		A RAM disk is a portion of RAM which is being used as if it were a disk drive.
		However, any data stored on a RAM disk is lost when the system is shut down or powered off.
		RAM disks can be a great place to store temporary data.
	www.vanemery.com /Linux/Ramdisk/ramdisk.html (976 words)

	Ram Disk Creator - System/Disk Utilities (Site not responding. Last check: 2007-11-05)
		Ram Disk Creator is a tool to create Ram Disks.
		It’s pretty straight forward to figure out whether using a RAM disk is worth it.
		Moreover Ram Disk are very useful for Powerbooks and iBooks because using a Ram Disk instead of the hard disk means using MUCH less power, therefore dramatically increase battery life.
	apple.com /downloads/macosx/system_disk_utilities/ramdiskcreator.html (230 words)

	Ram, The on Encyclopedia.com (Site not responding. Last check: 2007-11-05)
		RAM MOBILE DATA: Ram Mobile Data announces 22% in increase in turnover and gross profits up by a third.
		RAM Mobile Data transmits 1.2 million jobs a year for the UK's breakdown and recovery industry; GPS satellite positioning helps emergency services locate injured driver from McAllisters Recovery; GPS satellite positioning results in 20% fuel savings for M. Gosling.
		Rajeev Ram of the United States is a player on the ATP tour.
	www.encyclopedia.com /html/X/X-R1am2.asp (802 words)

	Programming Without Ram Disk Dichotomy
		The distinction between RAM and disk is important no matter whan language or technique I use.
		Suppose the underlying OS or hardware blurred the distinction between disk and RAM (or BubbleMemory was as cheap as disk).
		RAM and disk aren't contradictory, which is part of the definition of "dichotomy" I use.
	www.c2.com /cgi/wiki?ProgrammingWithoutRamDiskDichotomy (2243 words)

	Ram disk is slower then hard drive [Archive] - MacNN Forums
		Does anyone know why this is? I would think that the tiny bit of processor time used by SUM would be offset by the ram disk.
		A crash would wipe them from the RAM disk, or have an old unit there that has already been completed.
		What I want is a script that can run without using processor time(except when doing its job) to backup from a ram disk.
	forums.macnn.com /archive/index.php/t-68146.html (241 words)

	Macworld: Maxima 3.0. (Software Review) (Connectix RAM disk utility)(Evaluation) (Brief Article)@ HighBeam Research (Site not responding. Last check: 2007-11-05)
		RAM Disk PROS: Provides a higher-performance RAM disk and allows more Mac models to use a RAM disk than does Apple's software.
		RAM disks are created by a program that tricks your Mac into thinking that part of its RAM is a disk volume, which shows up on your desktop just like any other disk.
		A RAM disk, however, operates at silicon speeds, much faster than any hard drive or floppy disk.
	www.highbeam.com /library/doc0.asp?DOCID=1G1:16256108&refid=holomed_1 (207 words)

	The NetWinder Firmware-HOWTO: Advanced booting with initrd
		There are no particular restrictions on the size of the disk at this point, but making it needlessly large will just consume RAM when the machine is running later on.
		There are size restrictions on this compressed ram disk image, as explained in the next section.
		The compressed ram disk image can either be burned into the flash memory chip, or it can be fetched via TFTP when the NetWinder boots.
	www.netwinder.org /howto/Firmware-HOWTO-5.html (591 words)

	5.3.2 Is it possible to create a RAM disk? (Site not responding. Last check: 2007-11-05)
		The comments in /usr/conf/sio/ram.h says say: "Depending on the availability of memory, allocating large amounts of memory for RAM disk volumes may cause system failures (panics or hangs)." 3.
		The "usable" yield of disk space from memory allocated may be less than 100%.
		RAM disks aren't saved over a reboot, and require special action to do so.
	www.faqs.org /faqs/hp/hpux-faq/section-81.html (435 words)

	Is it possible to create a RAM disk?
		As stated above, RAM disks are unsupported by HP.
		RAM disks aren't saved over a reboot, and require special action to do
		Note: "ramdisc" is an alias for "ram" that is also recognized.
	www.unixguide.net /hp/faq/5.3.2.shtml (294 words)

	RAM disk help! [Archive] - Mac Forums (Site not responding. Last check: 2007-11-05)
		there are a number of RAM disk utilities out there so iw as wondering if any of these are good/necessary.
		what would happen if i used the RAM disk as a startup volume and then booted back and forth between osx and os9 (os9 on the ram disk).
		i have 512mb ram, which is barely enough in osx but is way more than i need in os9 so id love to be able to put it to work in the form of a ram disk.
	forums.macrumors.com /archive/index.php/t-2668.html (219 words)

	bit-tech.net \| RAM disk add-in card - Gigabyte's fast data storage
		We managed to grab some shots of a relatively inexpensive RAM Disk solution that is set to revolutionise the general speed of loading games and your operating system.
		Gigabyte, the company behind this exciting new product, are believed to be aiming the product at users who do a great deal of image and video editing, allowing for super fast data transfer that will outgun even the fastest SATA hard drives out there.
		The add-in card currently supports up to 4GB of DDR1 memory, and we understand that it is possible to link two cards together for a RAM Disk with a RAID array.
	www.bit-tech.net /news/2005/05/31/gigabyte_ramdisk (243 words)

	DVD-RAM Specifications
		Access time to recorded material is as fast as to the hard disk.
		No contact between disk and drive during record or play using laser phase-change technology.
		Disks have write-protect system to prevent accidental rewrite.
	www.eventide.com /loggers/dvdspec.htm (230 words)

	G4 - Feature - Speed Up Load Times With a RAM Disk
		But with 1GB sticks of RAM getting cheaper, now is a good time to start thinking about using a RAM disk to speed things up.
		In a few clicks I created a 2GB RAM disk on a testbed loaded with sticks of 1GB PC2700 RAM (thanks to Kingston for loaning us RAM for testing!).
		A RAM disk cut that time to less than 10 seconds.
	www.g4techtv.com /screensavers/features/45374/Speed_Up_Load_Times_With_a_RAM_Disk.html (547 words)

	macosxhints: Use a RAM disk to speed browsing on slower Macs (Site not responding. Last check: 2007-11-05)
		The problem was RAM was expensive in those days, and those of us who had the chance to get a 64MB RAM module wouldn't dare to spoil it with a RAM disk!
		Some problems remain, though: there is no OS X RAM disk creator with an option to save the RAM to a disk image on shutdown, so everything is lost the next time you restart.
		Disk Velox is a really simple-to-use RAM disk creator, though -- just enter a name and size, click a button, and you're done.
	www.macosxhints.com /article.php?story=20040827132909881&mode=print (436 words)

	4mb Laptop HOWTO: The Laptops (Site not responding. Last check: 2007-11-05)
		The small hard disks and the lack of an internal floppy on the Aero make the installation more tricky than normal but the real problem is the RAM.
		None of the current distributions has an installation disk that will boot in 4mb, not even if the whole hard disk is a swap partition.
		The standard installation uses a boot disk to uncompress a root-partition image (either from a second floppy or from CD-ROM) into a ram-disk.
	www.tldp.org /HOWTO/4mb-Laptops-2.html (379 words)

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