Time Machine Backup Partitions??

MPB11

macrumors regular
Original poster
Feb 2, 2011
150
0
Hey everyone,

I started using Time Machine for the first time this week on a 500 go external HDD. Apparently, my backup is using two partitions? I don't get it? When I eject my external HDD it also asks me if I want to eject both partitions. What is this?

thanks a lot
 

olibraves

macrumors newbie
Aug 25, 2012
6
0
East Lansing, MI
Hey everyone,

I started using Time Machine for the first time this week on a 500 go external HDD. Apparently, my backup is using two partitions? I don't get it? When I eject my external HDD it also asks me if I want to eject both partitions. What is this?

thanks a lot
I've actually just started having the same thing. Been using the same HD's for about 2 years now and just recently it starting saying this. Maybe something with the 10.8.2 update?
 

MPB11

macrumors regular
Original poster
Feb 2, 2011
150
0
sometimes the external HDDs have a separate software partition from the mfgr. Look at the display in disk utility and see what's there.
When I Have a look in disk utility I see something like this:

Macintosh HD
- Macintosh HD

My External HDD
- My external HDD

By the way,I use Filevault for my laptop and my time machine backup is crypted, don't know if it helps.
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
29,403
8,989
California
When I Have a look in disk utility I see something like this:

Macintosh HD
- Macintosh HD

My External HDD
- My external HDD

By the way,I use Filevault for my laptop and my time machine backup is crypted, don't know if it helps.
That is normal. I have FV2 and TM encryption on also and mine looks the same way. The first time I saw that double Macintosh HD business I about freaked out! :eek:

What you are seeing there is the actual (normal) partition, then the second virtual partition which is an encrypted disk image. You are fine.
 

MPB11

macrumors regular
Original poster
Feb 2, 2011
150
0
Ok so I guess everything is just fine! thanks

I was also wondering how it works? Does it backup daily if my external HDD is plugged in?
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
29,403
8,989
California
Ok so I guess everything is just fine! thanks

I was also wondering how it works? Does it backup daily if my external HDD is plugged in?
Time Machine will by default backup hourly as long as the destination disk is present.