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 12-06-2008, 02:30 AM
Ward Ward is offline
Registered User
 
Join Date: Nov 2008
Posts: 27
Cloning my Time Machine HD before repairing it

I've been running Time Machine for nearly a year, accumulating 619 GB of backup files (about 22 million actual files).

When Time Machine reported errors attempting to backup a 160 GB external FW HD, I talked to Apple Support and was advised to run a Disk Utility Verify on Time Machine's HD, and then do a Repair, if needed. Verify hung with its progress bar at 50%, probably indicating there's directory corruption.

Before I hand Time Machine's HD over to DiskWarrior, it seemed like a good idea to first clone that HD with SuperDuper! Then if DiskWarrior messes up, I'll have an opportunity to try another approach. (DiskWarrior has always been a faithful friend, but this task may be beyond it's capabilities.)

At the beginning, SuperDuper! was copying from one eSATA drive to another at 65 MB/sec. At that speed, it looked like a 4 hour copy. As time passed, the copy speed dropped. At 6 hours and 30 minutes, the clone is half done, and the copy speed down to 13 MB/sec. So I'm probably looking at another 12 hours or more.

Is this slowdown to be expected with a large disk? Or is directory corruption making SuperDuper's job more difficult or impossible?

If the HD cloning fails or slows down to glacial speed, my next attempt will be let DiskWarrior create a new directory, and use SuperDuper! to clone DW's Preview of the repaired HD. Then I'll let DW write a repaired directory.

I welcome your comments and advice.

-- Ward
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
Error 18 in Time Machine.... iith096 General 4 10-20-2008 04:57 PM
Cloning from a backup and Time Machine Weirdness isaac General 3 03-27-2008 02:09 PM
Time Machine Behavior nkhester General 0 02-15-2008 04:53 PM
Cloning a Time Machine Volume barrysharp General 5 10-31-2007 12:58 AM
A different angle on SD & Time Machine integration badlydrawnboy General 10 10-26-2007 09:37 PM


All times are GMT -4. The time now is 04:01 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.