Time Machine can‘t create backup on Synology NAS DiskStation (Error 17)

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Time Machine can‘t create backup on Synology NAS DiskStation (Error 17)

My first time trying to use Time Machine.

Configuration iMac: OS X vers. 10.7.3, 2.5 GHz, 4 GB Memory, 500 GB Disk

Destination of Backup: Synology NAS DiskStation DS212j, Mac File Service for Time Machine activated, user for Time Machine created

Log reports:

Starting standard backup

Network destination already mounted at: /Volumes/TimeMachine

Creating disk image /Volumes/TimeMachine/JoeiMac.sparsebundle

Error 17 creating backup disk image

Failed to create disk image /Volumes/TimeMachine/JoeiMac.sparsebundle, status: 17

Backup failed with error: 20

What means "Error 17"?

Any idea what went wrong?

Hope you can help.

Time Machine-OTHER, Mac OS X (10.7.3), NAS Synology DiskStation DS212j

Posted on Mar 6, 2012 8:59 AM

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Answer 1

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Pondini

Level 8

38,863 points

Mar 6, 2012 3:53 PM in response to joe64859

That's the problem with using a 3d-party NAS with Time Machine; it has it's own software that's supposed to interact with OSX, and when something goes wrong, it can be very hard to sort out just what and where the problem is.

First, make sure that model is fully compatible with Time Machine on Lion (some are, some aren't), and install any software/firmware updates Synology has for it.

Second, make sure the names (of all odd things) of your Mac and network aren't too long and don't contain any special characters, per #C9 in Time Machine - Troubleshooting.

Third, make sure you're following Synology's instructions exactly.

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