Re: Internal Disk/SAN DIsk for Oracle Binaries

On Wed, 16 Jun 2004 20:21:39 -0700, Daniel Morgan <damorgan_at_x.washington.edu> wrote:

>NorwoodThree wrote:
>
>> lsdba_at_yahoo.com (lps) wrote in message news:<ab35544f.0406160914.acce50f_at_posting.google.com>...
>>
>>>Hi - Can anyone elaborate on whether to install the Oracle binaries on
>>>internal mirrored disks or on a SAN with RAID5? Can you give me
>>>pros/cons with each scenario? This is a 9.2 installation on AIX.
>>>
>>>Thanks in advance, lps
>>
>>
>> What's your backup solution? On a very high level, if you put the
>> binaries on the SAN, and your SAN is being backed up, that might be a
>> good place to put it. A lot of variables there...
>
>I would presume any hardware would be backed up ... and there is the
>mirror on the internal drives. How bad could it get?
>
>The problem with the binaries on the SAN is that the SAN may be
>supporting multiple instances. How many copies of those binaries
>do you think you can put on it before someone changes the init.ora
>of the wrong one? From my experience ... two.

Daniel,

I can't see where that would be an issue in regards to the SAN. It would (almost) be a given that the SAN is supporting multiple servers -- each with its own unique chunk of the SAN. And at some fairly low level of abstraction, say, at the Oracle-to-OS interface, the fact that it is on a SAN vs. local drives would become indistiguishable. Looks to me like getting the wrong init.ora file is purely a management/identification issue -- not whether or not the disks are internal vs. external.

My take is that it really doesn't matter. If the server has the internal disk, and it's not being used for anything else . .. but I do like the idea of putting most everything on the SAN if for no other reason than it allows it to be easily re-mounted to another server if need be. Received on Thu Jun 17 2004 - 07:47:26 CDT