-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 M.-A. Lemburg wrote:
On 2008-09-24 08:02, Jaroslav Lukesh wrote:
But now I want to make some kind of portable, near OS independent (win/lin) compact zope solution. So I look for RDB with like "blackbox" functionality, with nothing special to make backups of running system (like make backup of Data.fs) and nothing to install when move - make backup copy of live system and then run it on another machine. Installations are allowed only in case of change OS platform.
I guess you're better off with storing your data in the ZODB if you're looking for file copy based consistent backups.
ZODB's file storage doesn't allow it, either, although people get away with it most of the time. The only safe way to copy a FileStorage without stopping the server is to use repozo, which creates a backup set that can be copied and restored to recreate the same Data.fs.
I don't know of any RDBMS that would allow file copy based backups from a running system while still maintaining consistency. At the very least, the database system has to flush its buffers to the database files, so you need special tools for the backup one way or another.
OTOH, nearly all database systems provide live backup tools which create consistent backups of a running system.
That is repozo's job, too. Tres. - -- =================================================================== Tres Seaver +1 540-429-0999 tseaver@palladion.com Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFI2k0b+gerLs4ltQ4RArvDAKDBH41Lhj3rRSFNThB4elc7enJ0GACfW/8Q HvDlIevSC6cHinj3uYUhBrk= =GF/K -----END PGP SIGNATURE-----