Catalog Backup to Shared Drive - LR Crashes

[TDixon]

I have a new ReadyNAS and am attempting to backup my LR catalog to a share I created on the ReadyNAS. When LR makes the attempt, it successfully tests the integrity of the catalog, successfully tests the integrity of the thumbnail cache, successfully creates a folder in my target share on the ReadyNAS (named using current date time stamp), and then crashes sending me to the Apple Problem Report Utility (where it appears that LR died after throwing a EXC_BAD_ACCESS (SIGSEGV) exception).

This behavior does not occur with a different network storage solution (SimpleTech SimpleShare). There it works just fine.

Obviously, the new ingredient here is the ReadyNAS (and I will be asking for help in their forums as well), but I am scratching my head a bit on how to troubleshoot. I have a few questions that I thought might be appropriate for this forum:
* Have other LR users experienced this themselves, or heard of someone else going through this? I have done quite a bit of searching this morning, without much success in finding a strong clue to pursue.
* Are there any known issues with LR and the various protocols used to connect a Mac to remote storage (e.g. AFP, SMB, etc.)?
* Are there log files or other diagnostic tools and tricks that LR provides of which I can take advantage?
* Is there something silly that you think I might be missing?

Some additional details on my system:
Mac OS 1'.5.8
LR 2.4 64bit
ReadyNAS RAIDiator 4.1.6

Thanks!

 

[sizzlingbadger]

LR doesn't support the use of networked drives for the working catalogue (due to locking) but I would have thought backing up to a network drive would be ok, but I'm not sure of the support around that. It sounds very much like the driver used for the NAS has the issue as you have already proved that this works with other file systems.

SIGSEGV should produce a trace file, usually in the form of a core dump that could be useful the ReadyNAS support guys.

 

[clee01l]

[quote author=sizzlingbadger link=topic=7742.msg52922#msg52922 date=12522687'8]
LR doesn't support the use of networked drives for the working catalogue (due to locking) but I would have thought backing up to a network drive would be ok...[/quote]I use Lightroom's Backup function to reguilarly backup my catalog to a NAS and have no problem. LR does the backup at startup before it opens the catalog. Of course this is with Vista and the NAS is running LINUX.
I suspect the NAS has permissions issues with the LR user trying to write to the NAS. How is the NAS attached to the Mac? I am unfamuiliar with how a Mac user would normally attach a remote network drive. Perhaps some of the Mac users can state the procedure.

 

[sizzlingbadger]

Cletus has added another vote for the 'it should work option'. I'm surprised by the SIGSEGV error in LR. If it was just a permissions problem then we should get a permissions error returned. Normally LR would pass the writr function to the OS and that would deal with it, but it is possible that the NAS you are using intercepts the I/O call and uses it's own driver code, if this is the case then that could cause a SIGSEGV error in the LR memory space. External storage systems that use Multi-Pathing often use the intercept technique to take over the I/O write to the disks.