Subject: [netatalk-admins] File modify date/time changes for no "good" reason
From: Malcolm McLeary (mim@mac.net.au)
Date: Mon Nov 29 1999 - 22:17:19 EST
Guys,
I've installed a Cobalt Qube2 (i.e. Linux server with Netatalk) and am
using Retrospect for MacOS to backup the Appleshare volumes.
The backup phase is fine, but the compare phase generates an error on
every file ... for example;
? Retrospect version 4.2
launch at 26/11/1999 4:39 PM
+ Executing Immediate Backup at 26/11/1999 4:40 PM
To backup set AlchemyS
- 26/11/1999 4:40:33 PM: Copying alchemy
26/11/1999 4:41:11 PM: Comparing alchemy
Different modify date/time (set: 26/11/1999 4:34:53 PM, vol:
26/11/1999
4:40:01 PM) for file ³alchemy:index.html².
Different modify date/time (set: 26/11/1999 4:37:59 PM, vol:
26/11/1999
4:40:10 PM) for file ³alchemy:Telstra Internet - ISONET².
Different modify date/time (set: 26/11/1999 4:38:01 PM, vol:
26/11/1999
4:40:18 PM) for file ³alchemy:Telstra Internet - TDA².
26/11/1999 4:41:25 PM: 3 execution errors
Completed: 4 files, 9 KB, with 22% compression
Performance: 0.1 MB/minute (0.1 copy, 0.1 compare)
Duration: 00:00:52
This is more than annoying as every incremental backup ends up being a
full backup because NONE of modification dates match those in the "snap
shot".
This does not happen on my Qube 2700WG, but is repeatable on two separate
Qube2s with two separate installations of Retrospect (both running on
MacOS 8.6).
Another interesting point is that the files in the example above had
their modification dates "updated" just by dragging them onto the server
volume.
It would appear that as Retrospect backs up a file it is "touched" and
the modification date is updated ... hence the compare errors. The problem
is that Retrospect only reads the files ... it doesn't actually do anything
(e.g. touch) to them.
To date Dantz say that Retrospect sees just Appleshare volumes and does
nothing but read the files ... Cobalt say;
> Unfortunately, Cobalt cannot support Retrospect. Why Retrospect does a touch
> on the file is a mystery that is best explained by the developers of
> Retrospect.
Has anyone else had similar problems with Netatalk changing file modify
date/time stamps for no "good" reason?
Is it a configuration issue.
I don't have this problem with my Qube 2700WG which is running a slightly
different version/configuration of Netatalk so I conclude its a Netatalk
issue.
Cheers, Malcolm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Information Alchemy Pty Ltd
ACN 089 239 305
Canberra, Australia
Malcolm McLeary Phone: +61 2 6294-1240
Managing Director Mobile: 0412 636 086
FSA Member Email: mim@mac.net.au
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This archive was generated by hypermail 2b28 : Sat Dec 18 1999 - 16:17:30 EST