Re: creative use of storage snapshots.
From: David Roberts <big.dave.roberts_at_googlemail.com>
Date: Tue, 21 Dec 2010 19:17:48 +0000
Message-ID: <AANLkTikoHKzzY0KLdFWnK9_0Vwc7NWqEXcNtjLqpBmvr_at_mail.gmail.com>
One point, that I don't see mentioned (unless I missed it) is if you are using some form of block level replication as a DR solution, what happens when the disaster is the disk controller writing garbage to your disk.
Date: Tue, 21 Dec 2010 19:17:48 +0000
Message-ID: <AANLkTikoHKzzY0KLdFWnK9_0Vwc7NWqEXcNtjLqpBmvr_at_mail.gmail.com>
One point, that I don't see mentioned (unless I missed it) is if you are using some form of block level replication as a DR solution, what happens when the disaster is the disk controller writing garbage to your disk.
If you are using DG, then depending on the type you will get varying early opportunities to spot the corruption or opportunities to recover from it. Opportunities that are lacking when you blindly have hardware copping data blocks.
I agree that these are fine solutions to providing development and testing environments, but I would suggest caution with regards adopting these technologies for DR purposes.
Dave
-- http://www.freelists.org/webpage/oracle-lReceived on Tue Dec 21 2010 - 13:17:48 CST