On Mar 7, 2012, at 10:46 AM, Dinse, Gregg (NIH/NIEHS) [E] wrote: > Both machines use an internal hard drive for the TM backups.
Ok. I do TM to a network server over both Wifi and a wired ethernet. The wired ethernet is much faster to back up the same amount of data. So it was one area to explore. > Both TM backup drives still have a lot of empty space, though the TM drive > at home is larger than the TM drive at work. Having enough empty space is an issue, though not what I was asking. I was wondering about the disks being backed up. How big are those (how much data is on them versus how big they are)? > > I certainly have a few files at home that are larger than those at work, such > as videos, but I exclude the Movies, Music, and Pictures directories from my > TM backups, so that should not be the problem. I am more concerned about a lot of small files. My datasets that are a small number of big files get backed up by TM much faster than the same overall size of dataset composed of a ton of smaller files. It does comparisons on all the file files and reading file info and comparing it for 200 gb worth of small files takes a lot more time than the same amount of effort for a small number of larger files. All the file attribute comparisons etc I am guessing (since I am not intimately familiar with TM innards). Chad > > Any other thoughts? > > Gregg > > On 7 Mar 2012, at 12:36 PM, objectwerks inc wrote: > >> How big are your data sets (how full with how much data are your disks)? >> Is the one at home using a local TM disk or a TM disk on your network? Is >> the data set composed of LOTS of little files? >> >> On Mar 7, 2012, at 10:07 AM, Dinse, Gregg (NIH/NIEHS) [E] wrote: >> >>> Hi, >>> >>> On my Mac Pro at home, Time Machine runs for about 30 minutes of each hour, >>> even when I have not created any new files. I also have a Mac Pro at work >>> and it does NOT exhibit this behavior. Both are running the latest version >>> of Snow Leopard (10.6.8). Does anyone have an idea about why Time Machine >>> is running so much on one of these? I expect Time Machine to run for a >>> short period (maybe a minute or two), even without many files changing, >>> since I assume it still has to search for possible changes, but 25-30 >>> minutes seems really excessive when nothing much has changed. Any thoughts? >>> >>> Thanks, >>> >>> Gregg > > _______________________________________________ > MacOSX-talk mailing list > MacOSX-talk@omnigroup.com > http://www.omnigroup.com/mailman/listinfo/macosx-talk _______________________________________________ MacOSX-talk mailing list MacOSX-talk@omnigroup.com http://www.omnigroup.com/mailman/listinfo/macosx-talk
