RE: Hot Backup using EMC /BCV splits

From: Wong, Bing <bing.wong_at_IngramMicro.com>
Date: Thu, 15 Aug 2002 09:23:31 -0800
Message-ID: <F001.004B671F.20020815092331@fatcity.com>

Can you tell us what is the size of the database that is using EMC/BCV or other Hardware vendor splits mechanism?
Thanks.

Bing Wong
Open Systems Database Administrator
x25721

-----Original Message-----
Sent: Thursday, August 15, 2002 9:09 AM
To: Multiple recipients of list ORACLE-L

Nat,

We have a similar backup strategy using a homegrown split procedure on Compaq Tru64. We split while all tablespaces are in backup mode as our's is a controller based split and takes 5-6 minutes. After all, if the split is going to take place after the tablespaces are taken out of backup mode, why put them in backup mode at all?!? I personally would not rely on the hardware to keep the database consistent during a split, but then again, I don't have any experience with EMC.

HTH
Mike

-----Original Message-----
Sent: Thursday, August 15, 2002 10:59 AM To: Multiple recipients of list ORACLE-L

Hello,

We are on IBM AIX 4.3.3 with EMC and BCVs. Our Unix admin has setup the backups for the database in following sequence to do the Hot backup.

1. Put all tablespaces in the database in Hot backup mode
2. Sleep 5
3. Put all the tablespaces back into normal mode
4. Split the BCV's
5. Mount on another machine and backed up from it.

What I am concerned is with step 4. Split BCV's should be done at step 2 instead of step 4.
According to our Unix Admin, EMC takes care of consistency and there is no need for any concern. As per him the split is instant split and EMC guarantees consistency.

What do you all think. What is the recommended procedure.

TIA, Nate

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Author: Nat
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Author: Hand, Michael T
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Author: Wong, Bing
  INET: bing.wong_at_IngramMicro.com

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To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Thu Aug 15 2002 - 12:23:31 CDT