RE: Multiplex Redo Logs with Mirrored Disks?
- From: "Goulet, Dick" <DGoulet@xxxxxxxx>
- To: "ORACLE-L (E-mail)" <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 23 Nov 2004 11:50:14 -0500
On a mirrored disk system, I don't multiples the redo logs. First off
the disk subsystem is much more efficient at the job than Oracle.
Second it becomes redundant storage.=20
Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA
-----Original Message-----
From: David Wagoner [mailto:dwagoner@xxxxxxxxxxxxxxxxxx]=20
Sent: Tuesday, November 23, 2004 10:47 AM
To: ORACLE-L (E-mail)
Subject: Multiplex Redo Logs with Mirrored Disks?
Is there any need to multiplex redo logs with mirrored disks (e.g.,
RAID-1
or RAID-1+0)?
Example- Oracle recommends multiplexing redo logs on separate disks,
like
redo01a.log on Disk1 and redo01b.log on Disk2, etc.
However, now that mirrored disks are in common use with RAID-1+0,
RAID-1,
etc. it seems that sufficient protection is in place to use only a
single
copy of each redo log. This would also provide the benefit of reduced
disk
I/O to write redo information to disk.
Anyone disagree?
Best regards,
David B. Wagoner
Database Administrator
--
//www.freelists.org/webpage/oracle-l
--
//www.freelists.org/webpage/oracle-l
Other related posts:
