Files are kept safe simply by RAID-5 mechanism. RAID-5 protects against any
single disk failure (double disk failure can wipe it all out) and that is
precisely
why Mogens is such a zealous proponent of RAID-5 systems.
--
Mladen Gogala
Oracle DBA
> -----Original Message-----
> From: ml-errors_at_fatcity.com [mailto:ml-errors_at_fatcity.com] On
> Behalf Of rgaffuri_at_cox.net
> Sent: Monday, September 22, 2003 2:05 PM
> To: Multiple recipients of list ORACLE-L
> Subject: OFA and Shared Storage
>
>
> I read some posts on here with shared storage such as SAN and
> Network Appliances its no longer necessary to multiplex
> datafiles on different disks, since the storage array handles
> that for you.
>
> How do you ensure that control files and redo log files are
> kept safely apart so that no one disk failure in the shared
> storage can take them all out?
>
> According to the OFA(well the abbreviated version I have in
> front of me) 4-5 disks is optimal for multiplexing. Does this
> no longer apply with shared storage? How do you ensure
> database available with shared storage? if your not
> multiplexing datafiles?
>
> I may have read some peoples posts incorrectly. Im just
> digging into backup and recovery.
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: <rgaffuri_at_cox.net
> INET: rgaffuri_at_cox.net
>
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Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Mladen Gogala
INET: mladen_at_wangtrading.com
Fat City Network Services -- 858-538-5051 http://www.fatcity.com
San Diego, California -- Mailing list and web hosting services
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Received on Mon Sep 22 2003 - 13:54:44 CDT
