Ming Zhang wrote (ao):
> I have a friend asked me for this. I wonder if anybody can give me a
> recommendation? Many of you are admin who are much better than me on
> this. :)
>
> > I have a question for you. I want to use iscsi array
> > to store database data file. I hope I can get some
> > kind of redundency (RAID) as well as dynamic increase
> > disk space without shuting down the database to
> > rebuild the array. The database will have transactions
> > all the time and can't be shutdown.
If the database _needs_ to run _all_ the time, hey should have a
master-slave / hot spare / failover setup. With such a setup, he can
enlarge the diskspace of the hot spare slave, fail over, enlarge the
diskspace of the former master and make that one the hot spare slave.
Of course the iscsi array(s) can be raid.
--
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