Error in Time Machine configuration with two usb disks??

Hi all,
I applied two 1TB usb disks to my Mac Mini with OSX 10.9 server (latest version) and configured them within the Server.app for time machine. As far as I understood, there should only be 1 backup destination 'backups' presented to my mac clients afterwards. But I always see 'backups' and 'backups-1', meaning both usb drives. Did I misunderstand the manual or is there something wrong with my Server.app?
Thank you for your help and best regards, BanditCH

Hi Wolfgang,
That just won't work. You can get a bigger external drive of 3TB for instance, that will work as one destination.
For this to work with 2 drives: every client needs to choose between two destinations, because both drives appear as a unique destination in TimeMachineServer. There's no way around it.
To be futureproof consider a dedicated NAS with 2 or more disks that supports timemachine so your capacity can grow when there are new bigger drives available. With 2 drives in a RAID mirror inside a NAS you have the best of both worlds. Client backup on a RAID mirror, when one drive fails it does not affect the entire backup. Connected to that NAS you can use an external USB disk for backup. Wonderful
Goodluck
Jeffrey

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