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Changing Time Machine Backup Frequency

admin — Tue, 30 Jun 2009 04:01:49 +0000

Time Machine just does what it does and there’s not much controlin’ it aside from what’s in the System Preference pane. Â Or is there? Â Earlier, I covered how to disable the disk check feature, now let’s look at how to change the frequency of when backups occur. Â Backups are initiated by com.apple.backupd-auto.plist, stored inÂ /System/Library/LaunchDaemons. Â The contents of this file are, by default:

Label
com.apple.backupd-auto
ProgramArguments
/System/Library/CoreServices/backupd.bundle/Contents/Resources/backupd-helper
-auto

StartInterval
3600
RunAtLoad

KeepAlive

The StartInterval integer controls the frequency with which backups occur, in seconds. Â You can customize this by altering the data in the line below (the integer). Â For example, if you set it to 360 then backups will occur every 6 minutes instead of 60, or more likely, if you set the integer to 14400 then your backups will occur every 4 hours instead of every hour.

/System/Library/LaunchDaemons/com.apple.backupd-attach.plist

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Suppressing Time Machine on Disk Mount

admin — Mon, 29 Jun 2009 17:00:21 +0000

By default, when you are using Time Machine in Mac OS X, every time you insert a drive the system will ask you if you would like to use that drive as a Time Machine backup destination. Â If you are like me and you swap drives around a lot then this can get annoying. Â So to stop it you can actually just disable a launchd System Daemon, com.apple.backupd-attach. Â To do so, simply move theÂ /System/Library/LaunchDaemons/com.apple.backupd-attach.plist to another location and viola, on the next restart when you attach a disk Time Machine won’t ask you if you wish to add the disk to your Time Machine destinations.

/System/Library/LaunchDaemons/com.apple.backupd-attach.plist

While this is one way, reader @Chealion pointed out on Twitter that the following command will go ahead and do the same thing without monkeying with launchd:

defaults write /Library/Preferences/com.apple.TimeMachine DoNotOfferNewDisksForBackup -bool true;

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TimeMachine Over Xsan and iSCSI

admin — Sun, 21 Dec 2008 20:36:20 +0000

Now that I’ve shown over the years how to setup an Xsan and iSCSI targets on Mac OS X I am starting to get a number of questions about how to set these up in such a way that Time Machine can backup to them. Â Since they’re not your typical disks in a lot of cases there’s a small command that you’ll need to run to make it work:

defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1

Essentially, once you’ve run this command you’ll be able to back up to anything that appears in /Volumes and then some (for example share points on your local network might appear even if you haven’t yet authenticated to them). Â You’ll also be able to backup to disks that are direct attached to an AirPort Extreme (which essentially makes them NAS volumes over an up-to-802.11n medium).Similar Articles:

Mac OS X 10.5: Using Unsupported Disks with Time Machine

admin — Wed, 07 Nov 2007 16:18:14 +0000

I originally posted this at http://www.318.com/TechJournal

If you want to use an unsupported disk type for your Time Machine archives, running the following command on workstations will allow you to do so:
defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1Similar Articles: