Re: Time machine interval

In article <1idwj5c.165n2cc105kbrwN%mikePOST@xxxxxxxxxxxxxxxxxxxxx>,
mikePOST@xxxxxxxxxxxxxxxxxxxxx (Mike Rosenberg) wrote:

Howard Brazee <howard@xxxxxxxxxx> wrote:

Checking, I find I was mistaken. It does 1-hour settings, but at 15
minutes past the hour. This does seem excessive, especially when I'm at
work or asleep, so I bumped it up.

I don't think you understand how Time Machine works. It's only backing
up whatever is new or has changed since the previous backup. If you
don't use your Mac for, say, 8 hours, it's not actually backing anything
up when it runs 8 times, just creating 8 directories. Then it only
keeps one per day for anything between 24 hours and one month old. If
you're concerned about using drive space unnecessarily, don't be.

I'm with the OP. I find it annoying to be using the computer and hear
it start writing to my backup drive.

I've been backing up my Macs with Retrospect for two decades, and I've
been perfectly fine backing up every couple of days. Of course, when it
was writing to removable media that I had to change whenever it filled
up (I started with tapes, then Zip drives, then CD-RW -- I finally
switched to a Firewire drive when those became affordable a few years
ago), it was necessary to compromise on frequency.

But even now that it's not so intrusive I think that hourly backups are
way overkill. I think I've restored things from backups about once a
year, and it's always been a version of the file that had been in
existence for days, weeks, or months. I just changed my TM to back up
every 8 hours.

--
Barry Margolin, barmar@xxxxxxxxxxxx
Arlington, MA
*** PLEASE don't copy me on replies, I'll read them in the group ***
.

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