RE: EMC BCV Splits and Hot Backup mode.

> Question:
> Why is it necessary to put the database in 'hot backup' mode when
> splitting a BCV? If it is just like splitting a mirror, why do you need
> the database in hot backup mode at all? Wouldn't it be the same as
> losing one side of a mirrored pair? When that happens, no extra
> processing is needed.

Aside: Even if you do this the database can be tricky to restart. One example I had to deal with was automating the daily dump of a parallelserver  database. Problem is that the disks were split with the database up. This made restarting difficult with my single-stream server, it got disk files that looked like a parallel server had crashed in hot backup mode. Recovering the database also wasn't simple since Oracle's best guess as to the sequence of logs to replay wasn't very accurate and required code to query the remote system for data files in each cycle. I managed to get it done with Perl using Open3 and a pair of svrmgrl proc's on my machine and the source but it was a serious pain to automate.

sl

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