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regald

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Hi.

kerio 6.3.0 runs smootly on an old PowerMac G4/400 (10.4.8, 320 MByte RAM, 2 x 80 GByte RAID Level 1), serving about 20 Exchange/Entourage users. Mail database is about 15 to 20 GBytes by now.

The system runs a daily full backup of the database to an external hard disk. It does so by creating a gigantic ZIP archive, splitted in 2 GByte segments. As the finder creation dates show, that operation takes about 3 hours. =:*)

Is there an option to disable zipping for the backup? An open 1:1 copy would be more handy, as disk space is no problem, but CPU cycles are - it also takes hours to unzip, which seriously slows down the restoration of a single mail or folder.

Thanks in advance.

Regards, Hannes
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winkelman

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regald wrote on Fri, 17 November 2006 16:48

it also takes hours to unzip, which seriously slows down the restoration of a single mail or folder.

TIP: You do not have to unzip the entire zip-file just to restore one mail or folder. You could just extract only that 1 mail or folder from the zip(s) :-)

The fact that it takes you hours to unzip 15-20Gb's is also an indication you're not using the best (un)zipper...

Besides the above: you're request for a non-zipped backup copy sounds reasonable to me. Perhaps even better: a non-compressed zip. Just as fast a direct copy, still just a few zip-files as backup (easier to handle, transfer to tape, etc.) and with proper zip-software just as fast to fully or partially unzip than non-archived files.
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regald

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Thanks. It'll take a close look at some good unzippers for Mac OS X. =:*)

Hannes
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