breu@unipas.fmi.uni-passau.de (Michael Breu) (07/10/89)
In the last issue of the german magazine MacUp there was a short notice, that the finder will run into problems, if there are more than 2000 files on one disk. This is a problem with this new huge optical disks but also with conventional big disks. We have here a 140 Mbyte Scuzzy disk. Last week our filesystem was corrupted. The disk test reported no error, but the filesystem structure was inconsistent. Some files didn't have all their blocks allocated. We think we have had more than 2000 files on this disk. Can anybody tell me, whether the previous problems with the finder is indeed existing, and whether it is related with the break down of our filesystem? Thank you Michael Breu Email: breu@unipas.fmi.uni-passau.de Innstrasse 33 ...!mcvax!unido!unipas!breu 8390 Passau Tel: 0851/509-354 W.-Germany -- Michael Breu Email: breu@unipas.fmi.uni-passau.de Innstrasse 33 Tel: 0851/509-354 8390 Passau W.-Germany
blob@apple.com (Brian Bechtel) (07/11/89)
In article <605@unipas.fmi.uni-passau.de> breu@unipas.fmi.uni-passau.de (Michael Breu) writes: > In the last issue of the german magazine MacUp there was a short > notice, that the finder will run into problems, if there are more than > 2000 files on one disk. This is a problem with this new huge optical > disks but also with conventional big disks. They are wrong; something got lost in the translation. There is a limit to the number of different applications that you may have on one disk. There is no limit on the number of files on one disk. Information about each application is kept in an invisible file called the Desktop file. The current method for maintaining this information uses the Resource Manager. The Resource Manager can't have more than 2,727 resources in one file. See Tech Note 141 for details. The Desktop problem will be fixed in System 7.0. See Tech Note 210 for more details on the current implementation and its limitations. I have 15,000 files on one hard disk in my office, with no problems. --Brian Bechtel blob@apple.com "My opinion, not Apple's"
d88-jwa@nada.kth.se (Jon W{tte) (07/13/89)
In article <605@unipas.fmi.uni-passau.de> breu@unipas.fmi.uni-passau.de (Michael Breu) writes: [ Problems with > 200 files on one disk ] >Can anybody tell me, whether the previous problems with the finder is indeed >existing, and whether it is related with the break down of our >filesystem? A problem that exists and will exist for the forseeable future is the problem with the Desktop file. It is a resource file, and as such cannot have more than 32767 resources in it. Now, some (generically typed applications with the "Standard application" icon and without file comments) add NO resources to the Desktop, while others may well add 20 resources, or more. There are two ways to avoid this, either by partitioning the disk or by modifying the Finder/Desktop structure (a task for the Apple Operating Systems Development Team) but neither may be appropriate for Your needs. (This is described in a TechNote, my TechNotes were updated in April or May, I think.) Hope this clarifies, sez' -- __ Jon W{tte (The dread Smiley Shark) email:h+@nada.kth.se / \ (+46 (0) 8 258 268) /--- (c) 1989 Yessbox Allright Professional Products Inc. - Y.A.P.P.I. / -- No More --
MAC.ROMOS@applelink.apple.com (Ian Hendry) (07/14/89)
In article <1285@draken.nada.kth.se> d88-jwa@nada.kth.se (Jon W{tte) writes: > >Can anybody tell me, whether the previous problems with the finder is indeed > >existing, and whether it is related with the break down of our > >filesystem? > > A problem that exists and will exist for the forseeable future is the > problem with the Desktop file. It is a resource file, and as such cannot > have more than 32767 resources in it. Now, some (generically typed > applications with the "Standard application" icon and without file comments) > add NO resources to the Desktop, while others may well add 20 resources, > or more. There are two ways to avoid this, either by partitioning the > disk or by modifying the Finder/Desktop structure (a task for the Apple > Operating Systems Development Team) but neither may be appropriate for > Your needs. (This is described in a TechNote, my TechNotes were updated > in April or May, I think.) Actually the above is not quite right, but there is a resource manager limit to the desktop file. Appleshare has an INIT called the DeskTop Manager which does not use the desktop file. At the developers conference Apple said they planned to include the DeskTop Manager functinality in system 7.0. The DeskTop Manager does not use the desktop file and it does not have a 2000 file limit so the "forseeable future" is until 7.0 ships. Ian Hendry MAC.ROMOS@applelink.apple.com Make sure my name is in the subject of any Email, or post replies to network. TE: 408-974-4737 Disclaimer: It was all HIS idea anyway! Nothing I say reflects anything my employer means... or anything I mean for that matter.