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Esperance DV is a prefpane for System Preferences for creating a RAM Disk. The object is to place the temporary files such as the mask of a navigator, the Builds files & Intermediates xCode's, etc... A RAM Disk is the use of a part of read-write memory (RAM) as a hard disk.

What's New

Version 2.3.2:
  • Fix assistant bug when uninstall Esprance DV

Requirements

Mac OS X 10.3 or later

*Previously available here

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Esperance DV User Discussion

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Aargl Member IconReview+353
Aargl
+0

Though it's working as advertised, it doesn't restore automatically on wake-up, here on PPC 10.5.8, so you have to go to the pref and restore it manually.
Also, though the self-restore at session start works, you have to do the back-up manually through the prefpane when you close it...
It would have been nice if it was a totally transparent process, but for my use, sleeping and waking multiple times a day, it would be too much of a hassle.

Reply1 reply
Version 2.3.2
Aargl
+0

Now that I've uninstalled it, I can tell you Firefox loaded a typical Myspace page in 20s instead of 23s without it... ;-)

Phillman5 Member IconComment+0
Phillman5
+0

Sorry for the triple posting below. When I first tried posting I mistakenly posted to reviews, then on trying to post to troubleshooting I got an error, so I tried again. Then when I found an address to send the problem to, and tried again so I could relay the exact error message, well, there are now three postings.

again sorry

Reply0 replies
Version 2.3.2
Phillman5 Member IconComment+0
Phillman5
+0

When I wake from sleep, I see the RAMDisk icon on the desktop, but it soon goes away. It does not then show up as a drive in DiskUtility or anywhere else. I have developed the problem I think after upgrading to 10.6.6 (from 10.6.5).

Reply0 replies
Version 2.3.2
Phillman5 Member IconComment+0
Phillman5
+0

When I wake from sleep, I see the RAMDisk icon on the desktop, but it soon goes away. It does not then show up as a drive in DiskUtility or anywhere else. I have developed the problem I think after upgrading to 10.6.6 (from 10.6.5).

Reply0 replies
Version 2.3.2
Phillman5 Member IconComment+0
Phillman5
+0

When I wake from sleep, I see the RAMDisk icon on the desktop, but it soon goes away. It does not then show up as a drive in DiskUtility or anywhere else. I have developed the problem I think after upgrading to 10.6.6 (from 10.6.5).

Reply0 replies
Version 2.3.2
Phillman5 Member IconReview+0
Phillman5
+0

When I wake from sleep, I see the RAMDisk icon on the desktop, but it soon goes away. It does not then show up as a drive in DiskUtility or anywhere else. I have developed the problem I think after upgrading to 10.6.6 (from 10.6.5).

Reply1 reply
Version 2.3.2
Phillman5
+0

This was actually a problem with 10.6.6, and has been fixed in 10.6.8

Flash1296 Member IconReview+297
Flash1296
+3

Absolutely PERFECT running under OS X 10.6.4!

That Apple does not offer this capability bewilders me.

This is far far better than using a terminal script that will create a Ram Disk:

Buried in the manual pages for Apple's command-line disk-image-management utility "hdid" are a few instructions on how to use this command to create and mount a RAM disk. The process basically involves creating a mount point for the disk, using the hdid command to allocate the RAM for the disk, and then create a file system on the disk so it can be used and mount it to the mount point.
#!/bin/sh

NUMSECTORS=128000
mydev=`hdid -nomount ram://$NUMSECTORS`
newfs_hfs $mydev
mkdir /tmp/mymount
mount -t hfs $mydev /tmp/mymount
Copy this text to a plain text document (not rich text) in TextEdit, and save it with ".sh" as the filename suffix (i.e., "ramdisk.sh"). Then open the Terminal and type "chmod u+x " followed by a single space, drag the script file to the Terminal window, and press enter. This will enable execution of the script by the owner of the file (you).
After this is done, to run the script just open a Terminal window, drag the script to it, and press enter. The default value for "NUMSECTORS" in the script will give you a 64MB RAM disk, but you can increase this number if you would like. The number represents sectors, and there are 512 bytes per sector of RAM. To edit the script after it has the .sh filename suffix, right-click it and choose TextEdit under the "Open With..." menu.
You can also run a similar script in one line using Apple's "diskutil" and "hdiutil" commands, which result in a more user-friendly RAM disk than the previous script.
diskutil erasevolume HFS+ "ramdisk" `hdiutil attach -nomount ram://128000`
When run in the Terminal, this command does a number of things (note the single quotes are actually "grave accent" marks). First it invokes "hdiutil" to attach an allotment of RAM but not yet mount it since there is no filesystem on it yet. After the RAM is allotted, it calls on the "diskutil" command to format the allotted RAM and name it "ramdisk," which will cause the Finder to mount it under that name in the default mount point /Volumes/.
This may be a preferred method because it is simpler and allows you to name the disk by changing the "ramdisk" name in the Finder.

Reply0 replies
Version 2.3.2
dimavs Member IconComment+0
dimavs
+0

There is a bug for more than 4 GB memory. My MBP got 6GB of memory and application shows -2GB available and slider is only from 0 to 16MB

Reply0 replies
Version 2.3.2
phillman5 Member IconComment+0
phillman5
+0

The comment below is misleading. It looks to me the RamDisk size can be quite large, at least 1/2 of physical RAM. The slider starts at 16 MB, it doesn't end there.

Reply0 replies
Version 2.3.2
pixelfilms Member IconComment+0
pixelfilms
+0

This is a question for Michael Parrot.
Is there a way to create a RAM Disk larger than 16 MB if I have 4.5 GB of RAM in my Mac? (16 MB seems small for an upper limit). Thanks.

Reply1 reply
Version 2.3.2
MacUpdate-Lon
+0

The developer's support webpage is here:

http://www.mparrot.net/index.php?page=support&lang=en

user icon+104
Dokter_mac
Version 2.3.2
> 5 6

Ratings

Overall
(6)
Current Version (2.x)
(6)

Details

Downloads 22,469
Version Downloads 17,961
Type Utilities / System
License Free
Date 03 Jun 2006
Platform OS X / PPC 32 / Intel 32
Price Free