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Q: Server 5.0.15 TM Service reporting "unknown" backup time

Seems that since upgrading to server 5.0.15, all of my El Capitan Time Machine service clients appear with an "unknown" last backup time.  Odd thing is, all of the Yosemite clients still report the correct last backup time.  The El Capitan and Yosemite user's local time machine settings still show the correct last backup time.  It is only the server app that does not.

I have even completely removed and created fresh TM backups for two users and it still reports "unknown," once the backup is complete.  I'd hate to have to destroy this server and start over, backing the entire staff up again.  Besides the reporting failure, everything otherwise seems to be just humming along with TM configured to backup clients to external drives, users configured in a local Open Directory "network user" accounts and the cashing service ticked.

  • OS X 10.11.1
  • Server 5.0.15

unknown last backup.png

Many thanks in advance for your thoughts!

OS X Server 5.0.15, OS X El Capitan (10.11.1), Time Machine Service

Posted on Nov 17, 2015 11:33 AM