Re: Oracle database on DEC's Advanced File System

From: Vipin Gokhale <vgokhale_at_us.oracle.com>
Date: 1996/01/11
Message-ID: <4d1rc8$ntn_at_inet-nntp-gw-1.us.oracle.com>#1/1


In article <30ED440C.5DA4_at_cho.ge.com>, Chris Little <chris.little_at_cho.ge.com> writes:
>Hello,
>
>I am aware of the performance reasons for splitting an Oracle
>database over multiple physical devices and then starting up a
>database instance with one database writer process per device.
>
>Our DEC UNIX administrator is telling me with DEC's Advanced
>File System, one physical device can be partitioned such that it
>behaves like multiple devices. Thus the argument for multiple
>physical devices is obsolete.
>
>I'm wondering if anyone out there has experimented with this and
>what your findings are. I'm running Oracle 7.1.4 on DEC OSF/1
>3.2A. Thanks in advance for your help.
>
>Chris
>
>--------------------------------------------------------------
>cHRIS lITTLE, oRACLE dba & sap bASIS aDMIN.
>ge fANUC aUTOMATION, cHARLOTTESVILLE, vIRGINIA, (804) 978-5945
>

One thing filesystems do not provide is ability to do asyncronous I/Os at application level - something raw devices do. Other than that, Oracle works just fine with ADVFS. Although it may sound very appealing, try not to take short cuts to taking backups by cloneing the filesets etc.

-- 
=====================================================================
Vipin Gokhale
DEC SBU
Oracle Corporation
Disclaimer:         Any opinions expressed here are mine and not that
                    of my employer.
=====================================================================
Received on Thu Jan 11 1996 - 00:00:00 CET

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