km@mathcs.emory.edu (Ken Mandelberg) (08/27/90)
Anyone know of an existing program to duplicate a hard disk on one Mac
exactly on another Mac using Appletalk? I'm talking about a block by
block copy of identical hard disks, not file by file copying.
--
Ken Mandelberg | km@mathcs.emory.edu PREFERRED
Emory University | {rutgers,gatech}!emory!km UUCP
Dept of Math and CS | km@emory.bitnet NON-DOMAIN BITNET
Atlanta, GA 30322 | Phone: (404) 727-7963peirce@claris.com (Michael Peirce) (08/30/90)
In article <6252@emory.mathcs.emory.edu> km@mathcs.emory.edu (Ken Mandelberg) writes: >Anyone know of an existing program to duplicate a hard disk on one Mac >exactly on another Mac using Appletalk? I'm talking about a block by >block copy of identical hard disks, not file by file copying. I don't know any way to do a block-for-block copy, but an easy way to do a file-by-file copy is using Public Folder. Just use the Customize dialog to designate your whole hard disk as your "Public Folder" (you do this by changing the Public Folder location from ":Public:" to you hard disk such as "HD40:"). After making the change, reboot the machine, then just copy everything. It's actually fairly fast... Claris Corp. | Michael R. Peirce, author of Public Folder -------------+-------------------------------------- | 5201 Patrick Henry Drive MS-C4 | Box 58168 | Santa Clara, CA 95051-8168 | (408) 987-7319 | AppleLink: peirce1 | Internet: peirce@claris.com | uucp: {ames,decwrl,apple,sun}!claris!peirce
ts@cup.portal.com (Tim W Smith) (09/01/90)
Is there a good way, with Public Folder, to make your public folder be on a disk that is not present when the Public Folder INIT runs? I've been using the following kludge: 1. Use customize to name the public folder FOO:. 2. Make a floppy labeled FOO:. 3. Reboot. 4. Insert floppy after happy Mac appears. 5. Public Folder INIT loads, accesses floppy. I didn't know if this would work, since Finder has not yet run to process the disk insertion event. 6. When system is up, run application that creates RAM disk. 7. Eject floppy. 8. Rename RAM disk FOO:. 9. Select Public Folder, see if it finds the Desktop file on the RAM disk. If it does, we are done. 10. Drag RAM disk to trash. RAM disk driver posts a disk insertion event to put RAM disk back. Finder remounts RAM disk. It is now the public folder. This is sort of a pain. Is there a better way? Tim Smith ps: While I'm asking about Public Folder, how does it compare to TOPS and Appleshare as far as relative overhead? That is, suppose I am trying to compare two ethernet drivers. I transfer a bunch of files with Public Folder and determine the transfer rate using the first driver. Then I switch to the second driver and do the same thing. Let's say the second driver is N% faster. If instead of Public Folder, I was using TOPS or Appleshare, would I expect the second driver to also be N% faster?
peirce@claris.com (Michael Peirce) (09/05/90)
In article <33437@cup.portal.com> ts@cup.portal.com (Tim W Smith) writes: >Is there a good way, with Public Folder, to make your public folder be >on a disk that is not present when the Public Folder INIT runs? I've >been using the following kludge: > ... description of how to make a RAM disk be a Public Folder... > >This is sort of a pain. Is there a better way? > > Tim Smith > >ps: While I'm asking about Public Folder, how does it compare to TOPS >and Appleshare as far as relative overhead? That is, suppose I am trying >to compare two ethernet drivers. I transfer a bunch of files with >Public Folder and determine the transfer rate using the first driver. >Then I switch to the second driver and do the same thing. Let's say >the second driver is N% faster. > >If instead of Public Folder, I was using TOPS or Appleshare, would >I expect the second driver to also be N% faster? I'm afraid I don't know of a better way to get Public Folder to see a disk that isn't around at boot time. If Public Folder can't find the designated Public Folder at INIT time it doesn't load itself into your system heap. This has the benefit that it if you don't have a PF, no system resources are consumed. The down side is that there is no way to change the PF later. At one time I had planned a follow-up release that would add in these features, but System 7 FileSharing should do a better job of it and still be free. As far as overhead, I'm really not sure about this. PF is actually pretty efficient. It uses Apple Transaction Protocol (ATP) for it's transfers and is about as efficient as you can be using this protocol. You *might* be able to run a little fast using another protocol, but not much really. Both TOPS and AppleShare have to worry about more infomation than PF (they keep files open and such, whereas PF simple blasts the file across the wire as fast as it can). Claris Corp. | Michael R. Peirce -- author of Public Folder -------------+-------------------------------------- | 5201 Patrick Henry Drive MS-C4 | Box 58168 | Santa Clara, CA 95051-8168 | (408) 987-7319 | AppleLink: peirce1 | Internet: peirce@claris.com | uucp: {ames,decwrl,apple,sun}!claris!peirce