Jump to content

Why is verify so slow?


jhg

Recommended Posts

With Retrospect 7.0, when I backup files to DVD using a Pioneer DVR-110D (IDE, internal, UDMA-4) I get between 460 and 520 MB/min performance on both the write and post-verify steps.

 

When I do a Verify Media on the same disks it never goes faster than 80 MB/min.

 

Can anybody tell me why, and if I can do anything to increase the Verify performance?

Link to comment
Share on other sites

A little more info.

 

Verify runs fast ONLY if I don't have to swap disks. A backup operation will run at 500MB/min, but if the backup crosses a disk boundary, such that the verify requires that I eject the second disk to reinsert the first, then verify will run very slowly (down to 30MB/min with small files). If no eject or disk swap occurs, the verify runs at high speed.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...