Shirt Pocket Discussions  
    Home netTunes launchTunes SuperDuper! Buy Now Support Discussions About Shirt Pocket    

Go Back   Shirt Pocket Discussions > SuperDuper! > General

 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #1  
Old 05-28-2023, 03:20 PM
mschmitt mschmitt is offline
Registered User
 
Join Date: Jun 2007
Posts: 29
Fixing when SuperDuper! Smart Update doesn't appear to free up storage

This is an FYI for anyone else who hits this problem. Your mileage may vary.

I deleted about a terabyte of data completely off a 3 TB source volume, and used SuperDuper! Smart Update to re-clone to a slightly smaller backup, but afterwards the backup only had around 300 GB free. What gives?

The reason was that there was an old com.apple.asr snapshot hanging around on the backup volume. It was probably from when I used SuperDuper! erase-then-backup to clone this Big Sur backup drive to another drive. This snapshot may have been from an unsuccessful asr step, or one I interrupted. But for whatever reason, it was still hanging around.

Disk Utility in Big Sur doesn't list snapshots, so the procedure was:
  1. diskutil apfs list to get the device ID of the problem Data volume.
  2. diskutil apfs listSnapshots deviceid to list the snapshots on that volume. The result was:
    Code:
    Snapshot for disk8s2 (1 found)
    |
    +-- B87B74A0-4E24-4941-A276-15F1056135E9
        Name:        com.apple.asr.23515
        XID:         1841140
        Purgeable:   Yes
        NOTE:        This snapshot limits the minimum size of APFS Container disk8
    This gives the snapshot UUID (B87B74A0-4E24-4941-A276-15F1056135E9)
  3. diskutil apfs deleteSnapshot deviceid -uuid snapshot_uuid
  4. Unmount the volume
  5. Mount it again
Reply With Quote
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Smart Update Failing: No Space Left On Device Error ? snpower General 6 04-13-2012 12:00 PM
SuperDuper! Smart Update Failing (see error below) snpower General 1 05-17-2011 03:25 PM
Using Smart Update in a smart way? efefes General 1 09-12-2009 05:13 PM
SuperDuper! erased my data during smart update avex General 7 10-29-2008 10:13 AM
Spotlight Privacy tab refuses to recognize SuperDuper Smart Update -- 100% repeatable RFMoya General 4 09-22-2007 01:46 PM


All times are GMT -4. The time now is 07:19 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.