I have a question to hopefully clarify something for me.

The offsite DBA has told us that our database is on a server wish "racks of
drives" and mentioned a number of about 20 drives at one time.

Yet, when I look on Enterprise Manager all I can find is 5 drives listed
(C,D,E,F,G).

We are not using ASM.

Would Oracle Enterprise Manager group disks into a single entity or does it
show what is actually there?
Or could there be another explanation?

Thanks.

"Dereck L. Dietz" <dietzdl@ameritech.net> wrote in message
news:v9M3i.3688$4Y.796@newssvr19.news.prodigy.net. ..
>I have a question to hopefully clarify something for me.
>
> The offsite DBA has told us that our database is on a server wish "racks
> of
> drives" and mentioned a number of about 20 drives at one time.
>
> Yet, when I look on Enterprise Manager all I can find is 5 drives listed
> (C,D,E,F,G).
>
> We are not using ASM.
>
> Would Oracle Enterprise Manager group disks into a single entity or does
> it
> show what is actually there?
> Or could there be another explanation?
>
> Thanks.
>

The drives could be protected by RAID. For example the "C" logical volume in
Windows could correspond with 2 "physical" hard disks with RAID-1 protection
(mirroring). Your local system administrator probably has more info :-)

HTH
Matthias

Dereck L. Dietz wrote:
> I have a question to hopefully clarify something for me.
>
> The offsite DBA has told us that our database is on a server wish "racks of
> drives" and mentioned a number of about 20 drives at one time.
>
> Yet, when I look on Enterprise Manager all I can find is 5 drives listed
> (C,D,E,F,G).
>
> We are not using ASM.
>
> Would Oracle Enterprise Manager group disks into a single entity or does it
> show what is actually there?
> Or could there be another explanation?
>
> Thanks.

Physical drives, from your standpoint, are irrelevant. You are looking
at logical volumes.
--
Daniel A. Morgan
University of Washington
damorgan@x.washington.edu
(replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org

"DA Morgan" <damorgan@psoug.org> wrote in message
news:1179623863.132964@bubbleator.drizzle.com...
> Dereck L. Dietz wrote:
> > I have a question to hopefully clarify something for me.
> >
> > The offsite DBA has told us that our database is on a server wish "racks
of
> > drives" and mentioned a number of about 20 drives at one time.
> >
> > Yet, when I look on Enterprise Manager all I can find is 5 drives listed
> > (C,D,E,F,G).
> >
> > We are not using ASM.
> >
> > Would Oracle Enterprise Manager group disks into a single entity or does
it
> > show what is actually there?
> > Or could there be another explanation?
> >
> > Thanks.
>
> Physical drives, from your standpoint, are irrelevant. You are looking
> at logical volumes.
> --
> Daniel A. Morgan
> University of Washington
> damorgan@x.washington.edu
> (replace x with u to respond)
> Puget Sound Oracle Users Group
> www.psoug.org

Thanks for the clarification.

That brings up another question. If our system is constantly experiencing
I/O throughput problems on drive (or volume) G: and the disk utilization for
same drive/volume has been near or at 100% for the past week would that
indicate that the volume needs to be split into more volumes or the database
files spread across more disks than they aready are?