RE: SET TABLESPACE CONTAINERS QUESTION

RE: SET TABLESPACE CONTAINERS QUESTION

 

  

Kevin,

The Number you specify when doing set table space is for the no of pages
need( Minimum) for the restore utility to complete. And for the second
question it is HWM ( HIGH WATER MARK ) number you have to take not the
total pages , normally take a 100 or more pages what is there currently
for a table space HWM say you have HWM as 1000 then use the set table
space container command with say 1200 or more to make sure that there
are no surprise alerts and restore gets aborted if they are less number
of pages which you declare.

Hope it clears , actually if you're restoring from a net backup you
don't need specify the set table space containers command are you doing
a REDIRECT RESTORE or just a Restore from PROD to DEV?




Thanks and Regards,
Vishnu Vardan G.
Project Engineer , Wipro Technologies
Bengaluru,India.
>*:vishnuvardan.[Email address protected]
>*: 9740149105
>P Please don't print this e-mail unless you really need to. Save a
Tree.

-----Original Message-----
From: Kevin_Corcoran
[mailto:db2udbdba-ezmlmshield-x46015222.[Email address protected]
Sent: Wednesday, January 30, 2008 10:29 AM
To: LazyDBA Discussion
Subject: SET TABLESPACE CONTAINERS QUESTION

Sorry if this questions sounds simple but I'm new to UDB.

I'm running UDB 8.2 on Solaris 5.10

I'm doing an 'alternate restore' in netbackup terms - in reality
restoring a Prod backup into a test environment.



My questions are:

1. Why do I have to specify a size when I do the "set tablespace
containers" command for DMS tablespaces? Surely during a restore this
file/container will just be overwritten by backed up blocks and so
preformatting is just wasted time?

2. (and this, I suppose, follows on) When specifying the number of pages

do I have to specify the Total page size of the source
tablepsace/container or can I use the Used pages value

TIA

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