Time Machine requires 4.51 TB after FileVaulting drive
OSX 10.6.8, iMac, external 3 TB user account drive, external 2 TB TM drive.
I just FileVaulted the external 3 TB drive on which my user account resides.
Now when I try to run TM to an empty 2TB drive, it gives me this error message:
------------------------------------------------------------------------
Time Machine could not complete the backup.
This backup is too large for the backup disk. The backup
requires 4.51 TB but only 2.00 TB are available.
------------------------------------------------------------------------
Note the df command output below. The external account drive now has 2 mount points.
The FileVault mount shows 5.85 TB --- on a 3 TB drive, go figure!
When I issue a du -s on my account, it comes back with only 573 GB used.
$ df -k
Filesystem 1024-blocks Used Available Capacity Mounted on
/dev/disk0s2 976426672 52170964 923999708 6% /
devfs 114 114 0 100% /dev
map -hosts 0 0 0 100% /net
map auto_home 0 0 0 100% /home
/dev/disk3s2 2929930672 694447552 2235483120 24% /Volumes/External
/dev/disk1s1 1952795648 832288 1951963360 1% /Volumes/TM_Drive
/dev/disk4s2 5859861216 3624410864 2235450352 62% /Volumes/External/Users/transini
Is there some way to reset TM or overcome this glitch?