[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] Backup a DomU
Am Donnerstag, 12. April 2012, 11:43:13 schrieb Stefan Becker: > I copy the disk, swap and cfg files.... What do you mean with full system? If you just pause a VM you did not have any dates from the memory. Firing a sysrq s did do a "sync" to the discs but as the filesystems are not cleanly umounted, filehandles are closed and processes are hung up your system could not understand as "completely consistent". You just "hope" that everything it's on his place when you copy it... Depending from the load of your system and the time between sysrq s and vm pause disk content would be differ more or less too. I do not know the book but from my understanding this is a ugly hack which may work - but not a real solution... In such cases it may much more sense to use any simple but working backup utility like dump / restore. Handling with MySQL databases requires to use something like mysqldump or cleanly shutting down MySQL as MySQL uses it's own technologies for caching and buffering beside the OS ones... hth best regards, Niels. -- --- Niels Dettenbach Syndicat IT & Internet http://www.syndicat.com --- Attachment:
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