Time Machine

Do you want to risk you data on the whole Macbook hard disk? I
don’t think anyone want that risk. So, it’s sweet that Apple provide
the Time Machine freely, what we need is only an external storage
disk, for example a portable hard drive or a cluster of hard drive. I
bought a 2 Tb West Digital external hard drive for my Mac. Because
it was already formatted for Mac OS, I only plugin it and follow the
instructions of Time Machine and all is done, including the
encryption of the whole disk. The encryption really took a long time,
which is about 20 hours, but that’s all it cost.

It is fantastic that we can use the backup disk as well as a temporary
storage disk. All the backups are in the folder Backups.backupdb,
and just leave it there. Once you connect your usb cable the backup
will process itself and guarantee there exists one back for each day
and one backup for each hour of today. Nice!

Troubles

Right after I finished this blog, Time Machine failed backing
up. It said that my external disk need repair, so I used the Disk
Utility to repair it, but also failed. I have to erase all the
backups and reformat the whole disk. I thought everything going to be
good, however, it failed to backup again with the same problem. I
searched a lot to figure out that if I let my Mac sleep then the
backup will fail when I wake it up. So far, I haven’t solved this
problem. Please any one may help.