Thanks, mk01.
I should add, properties of the
gjp22 pictured in the opening post include the following:
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macbookpro08-centrim:~ gjp22$ zfs get canmount,readonly tall/backups/gjp22
NAME PROPERTY VALUE SOURCE
tall/backups/gjp22 canmount noauto local
tall/backups/gjp22 readonly on local
My current guess is that the snapshot, from which tall/backups/gjp22 was received, was simply shot at
a moment when indexing by OS X was incomplete.
I'll shelve this topic for review a later date.
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For completeness at this stage:
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sh-3.2$ zfs get all tall/backups
NAME PROPERTY VALUE SOURCE
tall/backups type filesystem -
tall/backups creation Wed May 30 19:29 2012 -
tall/backups used 913Gi -
tall/backups available 1.86Gi -
tall/backups referenced 10.9Gi -
tall/backups compressratio 1.18x -
tall/backups mounted no -
tall/backups quota none default
tall/backups reservation none default
tall/backups recordsize 128Ki default
tall/backups mountpoint /Volumes/tall/backups default
tall/backups checksum on default
tall/backups compression gzip-9 local
tall/backups atime off inherited from tall
tall/backups devices on default
tall/backups exec on default
tall/backups setuid on default
tall/backups readonly off default
tall/backups snapdir visible inherited from tall
tall/backups canmount noauto local
tall/backups copies 1 inherited from tall
tall/backups version 5 -
tall/backups utf8only on -
tall/backups normalization formD -
tall/backups casesensitivity insensitive -
tall/backups refquota none default
tall/backups refreservation none default
tall/backups primarycache all default
tall/backups secondarycache all default
tall/backups usedbysnapshots 0 -
tall/backups usedbydataset 10.9Gi -
tall/backups usedbychildren 902Gi -
tall/backups usedbyrefreservation 0 -
tall/backups logbias latency default
tall/backups sync standard default
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sh-3.2$ zfs get all tall/backups/gjp22
NAME PROPERTY VALUE SOURCE
tall/backups/gjp22 type filesystem -
tall/backups/gjp22 creation Sat Jul 14 10:41 2012 -
tall/backups/gjp22 used 388Gi -
tall/backups/gjp22 available 1.86Gi -
tall/backups/gjp22 referenced 358Gi -
tall/backups/gjp22 compressratio 1.20x -
tall/backups/gjp22 mounted no -
tall/backups/gjp22 quota none default
tall/backups/gjp22 reservation none default
tall/backups/gjp22 recordsize 128Ki default
tall/backups/gjp22 mountpoint /Volumes/tall/backups/gjp22 default
tall/backups/gjp22 checksum on default
tall/backups/gjp22 compression gzip-9 local
tall/backups/gjp22 atime off inherited from tall
tall/backups/gjp22 devices on default
tall/backups/gjp22 exec on default
tall/backups/gjp22 setuid on default
tall/backups/gjp22 readonly on local
tall/backups/gjp22 snapdir visible inherited from tall
tall/backups/gjp22 canmount noauto local
tall/backups/gjp22 copies 1 inherited from tall
tall/backups/gjp22 version 5 -
tall/backups/gjp22 utf8only on -
tall/backups/gjp22 normalization formD -
tall/backups/gjp22 casesensitivity insensitive -
tall/backups/gjp22 refquota none default
tall/backups/gjp22 refreservation none default
tall/backups/gjp22 primarycache all default
tall/backups/gjp22 secondarycache all default
tall/backups/gjp22 usedbysnapshots 22.3Gi -
tall/backups/gjp22 usedbydataset 358Gi -
tall/backups/gjp22 usedbychildren 7.12Gi -
tall/backups/gjp22 usedbyrefreservation 0 -
tall/backups/gjp22 logbias latency default
tall/backups/gjp22 sync standard default
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sh-3.2$ zfs get all gjp22/opt
NAME PROPERTY VALUE SOURCE
gjp22/opt type filesystem -
gjp22/opt creation Sun Dec 23 7:59 2012 -
gjp22/opt used 6.98Gi -
gjp22/opt available 134Gi -
gjp22/opt referenced 6.33Gi -
gjp22/opt compressratio 1.88x -
gjp22/opt mounted yes -
gjp22/opt quota none default
gjp22/opt reservation none default
gjp22/opt recordsize 128Ki default
gjp22/opt mountpoint /opt local
gjp22/opt checksum on default
gjp22/opt compression gzip-9 local
gjp22/opt atime off inherited from gjp22
gjp22/opt devices on default
gjp22/opt exec on default
gjp22/opt setuid on default
gjp22/opt readonly off default
gjp22/opt snapdir visible inherited from gjp22
gjp22/opt canmount on default
gjp22/opt copies 1 default
gjp22/opt version 5 -
gjp22/opt utf8only on -
gjp22/opt normalization formD -
gjp22/opt casesensitivity insensitive -
gjp22/opt refquota none default
gjp22/opt refreservation none default
gjp22/opt primarycache all default
gjp22/opt secondarycache all default
gjp22/opt usedbysnapshots 666Mi -
gjp22/opt usedbydataset 6.33Gi -
gjp22/opt usedbychildren 0 -
gjp22/opt usedbyrefreservation 0 -
gjp22/opt logbias latency default
gjp22/opt sync standard default