Hi Jeff,

We use the FlashCopy feature of our FAStT disk array.  My script does a
dbpause, then runs a script to activate flashcopy on our FAStT (which takes
a kind of snapshot of the disk, and the array is able to maintain this
snapshot even as the underlying data changes) then dbresume.  The script
then does some stuff behind the scenes to re-mount the filesystems in the
snapshot area and the backup proceeds from the snapshot.  At the end of the
backup, those filesystems are unmounted, and flashcopy "turned off."

Total time for Unidata to be in a dbpause: anywhere between 20 seconds and a
minute (last night's was about 27 seconds)
Total time to tape off the snapshot: close to 5 hours
Value to a 7x24x365 bidness to get a good night's backup: priceless...  :-)


  -- John Solie -- Professional Hospital Supply -- 951-296-2600  

> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Jeff Powell
> Sent: Friday, January 06, 2006 2:15 AM
> To: u2 users group
> Subject: [U2] Backup, dbpause & 24/7 operation
> 
> As our company grows we are getting more pressure to extend 
> our operation through the night. We have maintained a nightly 
> backup that does a dbpause to suspend unidata. This irritates 
> our night shift people since they can no longer use the system.
> 
> How do those companies who operate 24/7 get around this and 
> perform backups?
> 
> Thanks,
> 
> SB 5.3.8
> Unidata 6
> AIX 5.3
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