Ariel Biener wrote: > On Monday 21 August 2006 11:54, Ami Chayun wrote: > > Hi all, > > I would like to get some advice for a backup utility with the following > > capabilities: > > > > Try rsnapshot (http://www.rsnapshot.org)
Thank you for the link (although I was not the original subscriber who asked this question). I apologize for a newbie question, and I probably miss something: You need a special filesystem to enable snapshots. Otherwise, it is not really a snapshot, and the use of this term is misleading. Taking a (not really) "snapshot" of a filesystem, with a difference of 2 seconds between the backup time of 2 files, may lead to severe problems of data integrity (e.g. when one of them is an index file of the other). Moreover, even when we examine the backup of ONE file, it may be modified while it is backed up, so the backed up file is corrupt. And locking is not an option when backing up a huge file (and most of the databases, especially databases which contain critical information, are huge). This is why companies like Veritas (recently acquired by Symantec) develop special filesystems and make so much money. To the best of my knowledge, and correct me if I'm wrong, none of the common filesystems (including ext2) support snapshots. So what did I miss? Thanks, -- Eli Marmor [EMAIL PROTECTED] Netmask (El-Mar) Internet Technologies Ltd. __________________________________________________________ Tel.: +972-9-766-1020 8 Yad-Harutzim St. Fax.: +972-9-766-1314 P.O.B. 7004 Mobile: +972-50-5237338 Kfar-Saba 44641, Israel ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
