Thread-topic: Encrypted backup using sparse image - Issue
User-agent: Microsoft-Entourage/12.1.0.080305
On 4/20/08 11:54 AM, "John Slaughter" <email@hidden> wrote:
>>> If you want, you can do this all visually from a central system using
>>> iCal and triggering AppleScript apps to execute at the servers over
>>> the network. Each server then is controlled from the centralized
>>> calendar and performs its own backup leveraging multiple processors
>>> for multiple backups.
>>
>> Um...no, and no. iCal is most DEFINITELY not the proper mechanism to
>> manage
>> scheduled backups for servers. That's what things like cron and
>> launchd are
>> for. Ical's background scheduler only runs in user space, and you'd
>> have to
>> set up mechanisms for the AppleScript to run the backups on multiple
>> machines.
>>
>> This reeks of "not the way to do it" from a reliability standpoint.
>
> I'm with Demetri when it comes to (at least) providing people with
> options. How many people are running Filemaker Server with a user
> already logged in? (Too many, but still.) It may not be an option
> to you, but it may be an option for some.
>
> I've seen too many people crushed by "but Cron was supposed to be
> backing up daily." It has it's problems too.
There are two mechanisms to use here that are specifically designed for
this: cron and launchd. The fact that neither are absolutely perfect does
not mean that they should be ignored in favor of a method that is not even
close to designed for this purpose.
What happens if the machine running iCal reboots for some reason? Your timed
job doesn't run. Cron and launchd, not *having* to run from a user login
don't have that particular problem
As a test method for the SuperDuper parts, sure, iCal's a good test. As a
method I want backing up my SERVERS???
Um...no
--
John C. Welch Writer/Analyst
Bynkii.com Mac and other opinions
email@hidden
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