5 Replies Latest reply: Dec 28, 2012 11:48 PM by John Galt
engbarth Level 1 (0 points)

Are there any issues or concerns with using Time Capsule as both an external storage device and a backup with Time MAchine.  We have a 1TB model and it has a ton of space available (been using it for about 2 years, but our Macbook pro only has 160gb in total).  I would envision that we'll continue to have a ton of space available on the Time Capsule until we eventually by a new MAC with more space.


Also, if it is possible without any major concerns, can you backup what you store to the time capsule?



  • LaPastenague Level 8 (48,792 points)

    There are concerns.


    See Q3




    But if the TC is the only place you store these files.. it can die suddenly and is impossible to backup with another Apple product.. you cannot use TM to backup a network drive.. so you need something else.. eg superduper.. and store the files in another location.

  • engbarth Level 1 (0 points)

    Any suggestions for a good, cost effective external storage device that will be automaticaly backed up by Time Machine to my Time Capsule in addtion to backing up my computer.  i also prefer everything wireless, but not sure if they even make an external wireless drive.  Thanks in advance for any advice!

  • John Galt Level 8 (45,936 points)

    The only wireless Time Machine option supported by Apple is the Time Capsule. Wireless NAS devices will be recognized by Time Machine and will appear to work, until they don't. This will occur without warning and is therefore a poor choice for a backup strategy.


    Use an external hard disk drive connected directly to your Mac, or use Time Capsule. Apple does not support any other configuration. See: Mac Basics: Time Machine

  • engbarth Level 1 (0 points)

    Thanks for the info... That really ***** as who wants to be worrying about disconnecting drives everytime you want to use your laptop away from the desk (which is multiple times a day).  I also cannot use Time Capsule as whatever I save there will not be backed up.. Thanks for the advice!

  • John Galt Level 8 (45,936 points)

    It's not as bad as it seems. Time Machine continues to maintain hourly backups on portable Macs even in the absence of its backup disk. You will lose nothing, as long as you eventually connect your backup disk.


    Try it yourself. You can "Enter Time Machine" to browse recent backups even when your backup disk is disconnected. Older ones will not be available to restore but recent ones will. These "local snapshots" are written to your Time Machine backup device when it becomes available.


    Time Machine is aware of local disk limitations and will not fill your hard disk with endless backups.


    This is not to be confused with a complete backup, obviously a complete system restoration cannot be accomplished until you connect your backup device for instance, and if your MacBook Pro needs the space occupied by local snapshots, it will seize it without pestering you for permission.


    You can also disable this option if you choose.


    Read: About Time Machine's "local snapshots" on portable Macs