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archive slow and hangs

I have a 1TB TC and a 1TB WD USB drive.

A couple of months ago I ran a TC archive to the WD. It took a while (about 600GB of stuff). As I recall it was pretty much over night.

I wanted to archive the TC again so I deleted all the stuff on the WD - that took awhile. Not working with USB drives I was surprised I could not see the USB drive with Disk Utility. But eventually everything went in the trash and was deleted.

I tried to archive again the TC to the USB attached WD and it starts off fine. However after about 12 hours I am only at 95GB out of 562GB and it looks hung. This is the second time this happened. In two days - yesterday pretty much the same thing - i.e. hung about 25%of the way through.

When I launched Archive the second time I was extremely careful to look at all indicators to see that the WD was empty.

What causes Archive to hang? What transfer rate seems logical?

iBook G4 & MacBook & MacAir, iBooks on 10.3.9 -- MacBook on 10.4.x -- MacAir 10.5.x

Posted on Mar 24, 2010 5:14 AM

22 replies

Mar 24, 2010 3:15 PM in response to Rob Tholemeier

Again you are not thinking.

Let me repeat. You made the assercion that the archived data moves from the TC to the Computer and back to the TC attached USB drive.

I said that did not appear to be true. The transfer rates are too high.

You came up with a meaningless proposal of shutting down the machine that started it.

I showed you but you STILL do not understand that shutting down the machine does not determine if the data round trips or not.

Think. About it.

The thing that is a better indicator is transfer rates. And or network traffic.

Your diagnostic "Restart or Sleep" tells you nothing about the round trip possibility. There could be built in restart where it left off. Or a direct disk to disk could be interrupted if the machine that initiated it went away.

Bottom line: You need to update your not and quit quoting it.

Pondini

Level 8

38,863 points

Mar 24, 2010 3:46 PM in response to Rob Tholemeier

Rob Tholemeier wrote:
d d = direct disk to disk.

You did not read a thing I wrote. Yes, I shut down the Mac but that does not tell you anything.

Calm down a bit, please. There is no need to get nasty.

Of course I read what you wrote. But I didn't read your mind. You never confirmed whether you slept or restarted your Mac until now.

The transfer could be direct disk to disk block mode and the controlling program on the TC could do a heart beat to the machine that launched it.

That's not what I asked. I was told by two supposedly knowledgeable folks that the work was done by the Mac. And I'm trying to figure out if that was wrong at the time, or has changed since then. That's why I asked for confirmation of what version of OSX and Airport Utility you're using.

The best measure is transfer speed. 600GB in afew hours is not running the data over WiFi and back.

From your first post:

A couple of months ago I ran a TC archive to the WD. It took a while (about 600GB of stuff). As I recall it was pretty much over night.

Not exactly definitive. about 600 GB? +*pretty much overnight?+* Yes, of course, 600 GB in, say, 8 hours is clearly faster than WIFI. If you remember right from a few months ago, and if your estimates are anywhere near close. Excuse me, but it's hard to be sure about something that vague.

And:

I tried to archive again the TC to the USB attached WD and it starts off fine. However after about 12 hours I am only at 95GB out of 562GB and it looks hung.

fine? What does that mean? Then 12 hours for 95 GB -- that's about 8 GB per hour by my calculation.

I showed you but you STILL do not understand that shutting down the machine does not determine if the data round trips or not.

If the Mac is asleep, data is not being received and re-sent. Yes, I suppose a built-in restart might be there, but I doubt it (can't think of anything else that restarts that way). An easy test would be, if you sleep or restart, and the archive stops, it might confirm that the Mac is doing the work. If you leave it asleep or off for a while, and there's no progress, that would be another clue.

If you'd be so kind as to confirm that this was done via Leopard or Snow Leopard, and what version of Airport Utility, perhaps I can find someone else to do some timings under various circumstances.

Mar 24, 2010 3:56 PM in response to Pondini

"What does that mean? Then 12 hours for 95 GB -- that's about 8 GB per hour by my calculation. "

Not reading what I wrote...I said it took off really fast then hung. Not good to divide.

I run both Leopard and Snow and the latest APU (now and back around Christmas).

But you are beating a dead horse. There is no way the data can move that fast over WiFi. You need to update your note.

You did not read my note because I describe how and why shutting down or sleeping proves nothing. Lots of thing restart.

Tme to up date your note.

I'm done with this thread.

Pondini

Level 8

38,863 points

Mar 24, 2010 4:01 PM in response to Rob Tholemeier

Thank you so much for being so helpful and polite.

Mar 24, 2010 4:03 PM in response to Pondini

No problem. Glad to help you out.

Mar 24, 2010 6:48 PM in response to Rob Tholemeier

Put a stake in it. 450 GB in under three hours and change over WiFi?!!!

LOL

"I dont got to restart no stinken' 'puter."

Pondini

Level 8

38,863 points

Mar 24, 2010 6:55 PM in response to Rob Tholemeier

Rob Tholemeier wrote:
"What does that mean? Then 12 hours for 95 GB -- that's about 8 GB per hour by my calculation. "

Not reading what I wrote...I said it took off really fast then hung. Not good to divide.

Just exactly what is one to make of "took off really fast"? How would you adjust 12 hours for 95 GB by "took off really fast"?

I run both Leopard and Snow and the latest APU (now and back around Christmas).

Which version of Airport is that?

I'm done with this thread.

Really?

archive slow and hangs