Thanks everyone for your input.

BTW Ueli, can i ask you abt slow restore. You mention for single file restore 
require various tape positioning, meaning to restore 1 file, it need to 
position the tape afew time before restoring the entire file? whereas a normal 
filesystem backup when retore a single file only require 1 time postioning? So 
the multiple times taken for the positioning wil affect the overall restore 
timing?



Ueli Schweizer wrote:
> Data fragmented on disk will also be backed up fragmented using Flashbackup.
> The restore of single files will be slower in this case, because the data
> cannot be restored without various tape positioning.
> 
> Ueli Schweizer
> CTO
> 
> AGITE Software AG · Boesch 43 · CH-6331 Huenenberg · Switzerland
> Direct: +41 79 204 9190 · Phone: +41 41 781 5678 · Fax: +41 41 781 5677
> Ueli.Schweizer < at > AGITE-Software.com · http://www.AGITE-Software.com 
> 
> backupVISUAL?...
> ...we make life on backup easy
> 
> 
> -----Original Message-----
> From: veritas-bu-bounces < at > mailman.eng.auburn.edu
> [mailto:veritas-bu-bounces < at > mailman.eng.auburn.edu] On Behalf Of dy018
> Sent: Wednesday, July 02, 2008 5:02 AM
> To: VERITAS-BU < at > mailman.eng.auburn.edu
> Subject: [Veritas-bu] NBU Flashbackup vs Normal Backup
> 
> 
> Hi,
> 
> Recently i was told by symantec that using Flashbackup to backup the raw
> device will greatly increased the backup and restore time.
> 
> After reading through the admin guide abt the advanced client, i also
> understand that flashbackup also able to do file level restore instead on
> restoring the entire volume which i initially tot is going to be the trade
> off.
> 
> This spark a question, so a flashbackup is almost the same as a normal file
> level based backup which also able to retore individual files, wat are the
> cons of using flashbackup beside higher cost to buy the advanced client
> licenses? Anyone here knows the pros and cons? 
> 
> Regards
> 
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