jim144 Posted January 28, 2006 Report Share Posted January 28, 2006 An incremental backup of 60G on an 80G internal HD can take only a few minutes, but the preceding scan time seems forever. Is there a way to speed up the scan? Thanks. [Retrospect version 6.0.204; Mac OS 10.3.9; 750MB RAM; backing up 60G from internal 8OG via Firewire to OWC HD 250G.] Quote Link to comment Share on other sites More sharing options...
CallMeDave Posted January 28, 2006 Report Share Posted January 28, 2006 In order for Retrospect to copy only files that have changed, it has to look at every file and compare them to what it has already copied in past backups. If you're backing up the entire hard drive, it has to scan the entire drive. Since backup needs are different for different users, there's no one answer. But one thing you can do is define your Home directory as a sub-volume, and use that for your more frequent backups. Then run the whole volume backup less often, under the assumption that things such as /System/ and /Library/ change much less often then /Users/ You can use different Scripts, with different Sources, that all write to the same Destination. Dave Quote Link to comment Share on other sites More sharing options...
jclark Posted February 1, 2006 Report Share Posted February 1, 2006 I backup on Win and Mac, and windows sure scans a lot faster - I wonder what the difference is... ?? jeff Quote Link to comment Share on other sites More sharing options...
Lennart_T Posted February 1, 2006 Report Share Posted February 1, 2006 Hi. Are you comparing a Mac and a PC with about the same number of files and about the same age? I mean an old Mac with 300,000 files compared to a brand new hi-tech PC with just 50,000 files, who "wins"? After the scanning and backup of a PC, Retrospect has to build a "snapshot" which takes much longer than the scanning. Have you taken that time into the equation? Regards Lennart Quote Link to comment Share on other sites More sharing options...
jclark Posted February 10, 2006 Report Share Posted February 10, 2006 Quote: Hi. Are you comparing a Mac and a PC with about the same number of files and about the same age? I mean an old Mac with 300,000 files compared to a brand new hi-tech PC with just 50,000 files, who "wins"? After the scanning and backup of a PC, Retrospect has to build a "snapshot" which takes much longer than the scanning. Have you taken that time into the equation? Regards Lennart Yes - roughly equivilent hardware, and equivilent file numbers... It *seems* faster, though I haven't actually measured it. I shall at my next oppertunity. However, *perception* is very important - and it seems to be faster on Windoze... jeff Quote Link to comment Share on other sites More sharing options...
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