Currently my TSM server is not running aio and after the holiday
I'm considering turning it on. Does anyone know of a reason that
an AIX TSM server should not run aio?

Mike

aio is Oracle ? tsm is DB2 ?
"Mike" <mikee@mikee.ath.cx> schreef in bericht
news:10bf70h1oq8psea@corp.supernews.com...
> Currently my TSM server is not running aio and after the holiday
> I'm considering turning it on. Does anyone know of a reason that
> an AIX TSM server should not run aio?
>
> Mike

In article <40b9a150$0$41756$5fc3050@dreader2.news.tiscali.nl >, JWL wrote:
> aio is Oracle ? tsm is DB2 ?
> "Mike" <mikee@mikee.ath.cx> schreef in bericht
> news:10bf70h1oq8psea@corp.supernews.com...
>> Currently my TSM server is not running aio and after the holiday
>> I'm considering turning it on. Does anyone know of a reason that
>> an AIX TSM server should not run aio?
>>
>> Mike
>
>

AIO is AIX.
Oracle wants AIO on AIX.
TSM is custom and not DB2.

On Sun, 30 May 2004 10:54:41 +0200, "JWL"
<janwillem.delange@nospam.tiscali.nl> wrote:

>aio is Oracle ? tsm is DB2 ?
>"Mike" <mikee@mikee.ath.cx> schreef in bericht
>news:10bf70h1oq8psea@corp.supernews.com...
>> Currently my TSM server is not running aio and after the holiday
>> I'm considering turning it on. Does anyone know of a reason that
>> an AIX TSM server should not run aio?
>>
>> Mike
>

TSM is "unknown failed in original use" database with an SQL front-end
grafted on to it. If you look at the actual object definitions in TSM, it
looks like an inverted tree database -- ALL objects are redefinitions of
'standard', the lowest level of any part of a definition. (RACF, the
mainframe security package, started life as a bill of material package --
IBM doesn't waste ANYTHING).

BTW -- I don't thnk TSM will USE aio - but it doesn't cause problems,
either. Our TSM server is a fallover (HACMP) box for an SAP/Oracle
instance and has been running AIO for seven years without (apparent)
problem.

Tom

JWL wrote:
> aio is Oracle ? tsm is DB2 ?
> "Mike" <mikee@mikee.ath.cx> schreef in bericht
> news:10bf70h1oq8psea@corp.supernews.com...
>
>>Currently my TSM server is not running aio and after the holiday
>>I'm considering turning it on. Does anyone know of a reason that
>>an AIX TSM server should not run aio?
>>
>>Mike
>
>
>
==
Ummm, I don't think "aio" is specific to TSM or Oracle or DB2 (and I
could be very wrong <G>) but rather used in conjunction w/databases to
improve system I/O throughput/performance (smit devices -> Asynchronus
I/O -> Posix...Asyn (legacy)...). Since the TSM server is running a
(version of DB2 - I believe), correctly configuring async i/o on that
machine MAY (greatly?) improve throughput/IO performance.

PS
p.s. There (as usual <G>) are some configuration rules...a little bit
of research before configuring async IO may save you the trouble of
dealing w/"mysterious" issues later...PS

On Sun, 03 Apr 2005 10:49:09 -0500, Dohhhh <whynot@verizon.net> wrote:
<snip>
> Since the TSM server is running a (version of DB2 - I believe), ...

<snip>

Unless something big has changed, TSM uses a proprietary hack of a btree
for its physical database and not a pared down DB2 even though the SQL
interface looks similar.