• Storage & Archiving

  Failing to copy files to network volumes

  Posted by Eric Hansen on January 23, 2013 at 9:29 pm

  Has anyone run into this bug:

  https://macperformanceguide.com/AppleCoreRot-Finder-silent-failure.html

  I don’t believe that I’ve experienced this, but none of my SAN systems are on Mountain Lion yet. I was going to upgrade one of my Ethernet SAN clients to 10.8.2 in the next 2 weeks and this bug scares me. I don’t want to have to run an integrity checker on every since file copy. thoughts?

  e

  Eric Hansen
  Production Workflow Designer / Consultant / Colorist / DIT
  https://www.erichansen.tv

  Caspian Brand replied 13 years, 3 months ago 3 Members · 3 Replies
• 3 Replies

• 

  Bob Zelin

  January 24, 2013 at 3:20 am

  I use 10.8.2 server for all new systems. I have NOT seen this problem, but I have seen corrupt data transfers of large volumes with OS X Lion, so I appreciate the link, and I will check out Integrity Checker from DigiLloyd.

  good post Eric !

  Bob Zelin
• 

  Eric Hansen

  January 24, 2013 at 3:24 am

  One thing that concerned me initially was running LTO tape writes directly off SAN volumes. but BRU PE does a verification pass, so I’m a little less stressed. but not much.

  e

  Eric Hansen
  Production Workflow Designer / Consultant / Colorist / DIT
  https://www.erichansen.tv
• 

  Caspian Brand

  January 25, 2013 at 4:24 pm

  I have not relied on the Finder for many releases (10.7, 10.6, 10.5, 10.4, and earlier). I’m sure we’ve all experienced failed copies for one reason or another and lost much time chasing down directories to see where the Finder decided to leave off…a major pain.

  I recommend to all my customers NOT to rely on the Finder for copying critical data…purely because there is no verification or sensible logging. Who of us has time to literally check every single file’s integrity, especially when copying hundreds of GBs to dozens of TBs of data?

  There are a number of software tools for the Mac which offer data verification, and while this step can literally double the transfer time, at least you can sleep at night. Some of these tools also offer logging, showing you specifically which files may have issues. These tools have also helped suss out issues with RAIDs and other physical media issues based on verification failures.

  My favorite on the Mac platform is ChronoSync, which I’ve been using and recommending for years.

  -Caspian

  Product Specialist
  Studio Network Solutions

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