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Retrospect o intel mac always crashes

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Hi Folks, We have an intel mac and retrospet is crashing on it way to frequently. pretty much daily. we have an LTO3 drive with an atto scsi card. has anyone else have this problem. I am posting here before i call Tech support. Any suggestions are welcome.

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You haven't provided enough information for anyone to help you. Some of the relevant information would be:


Version of Retrospect?

RDU version?

Model of Intel mac?

Version of Mac OS X?

Server or non-server version of OS X?

Do you have ACLs enabled on the volume that is being backed up?

Version of ATTO SCSI card? (UL3S, UL4S, UL4D, UL5D, UL5D low profile ?)

ATTO firmware version?


One cause could be if you have the magic combination of an Intel Mac OS 10.4.7 or 10.4.8 with ACLs enabled, using Retrospect 6.1.126. In that case, you either need to upgrade to Mac OS 10.4.9 or to use the Retrospect hack that allows disabling backup of ACLs. See:

Retrospect ACL hack


If that's not it, provide some information and perhaps someone can help. We can't read your mind.



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