As long as your mount points are not sharing disks from
the same volume group you are correct. However, its
expensive to write to RAID 5 which is why you will usually
see raid 0+1 instead.
-----Original Message-----
Sent: Sunday, September 09, 2001 7:55 AM
To: Multiple recipients of list ORACLE-L
Hi Joe,
What's your configuration ? Raid 1 ?
How do U organize the oracle directories ?
Correct me if I am wrong. I thought though I use Raid 5 but with different
mount points, I will not have contention problems
For example
One mount point for data files
Another mount point for index files.
Please advise. Thanks.
Regds,
New Bee
-----Original Message-----
To: Multiple recipients of list ORACLE-L
Sent: 09/09/2001 8:30 PM
if u dont know the underlying striping and someone else built the
filesystes, then the point is moot, you might as well have one logical
disk, since you cant reallt guarantee where something is going to end up
anyways.
with all of the raid5 stuff(that evryone likes so much anymore), we as
DBAs dont have control over where stuff is, so a good backup/recovery
plan is a must, at least in the old days when a physical device was
mapped to a filesystem(pre-logical volume days), we could handle making
sure of duplexing redo logs, etc.
joe
"CHAN Chor Ling Catherine (CSC)" wrote:
>
> Hi Guru,
>
> How do you organize your oracle directories in Unix ?
>
> I am thinking of using the configurations below. We are using Raid 5
with
> various mount points.
>
> \dg1\oracle => contains Oracle Human Resources software applications
and
> oracle home .eg. sidappl, sidcomn, sidora
>
> \dg2\oracle => contains redo log file and control file eg. sidredo &
sidctrl
>
> \dg3\oracle => contains redo log file and control file eg. sidredo &
sidctrl
>
> \dg4\oracle => contains redo log file and control file eg. sidredo &
sidctrl
>
> \dg5\oracle => system tablespace file and temp tablespace data file
.eg.
> siddata
> \dg6\oracle => data file and rollback segment data file .eg. siddata
> \dg7\oracle => index file eg. sididx
> \dg8\oracle => archive log file .eg. sidarc
>
> Is there any disadvantage if I put the redo log file and control file
in
> different directories but in the same mount point ?
>
> Is there any disadvantage if I put the rollback segment data file
together
> with my data file in the same directory ?
>
> Is there any disadvantage if I put the tablespace data file together
with my
> temp tablespace data file in the same directory ?
>
> TIA
>
> Regds,
> New Bee
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