Re: 8.1.7 Linux: strange Harddisk activity

Hermi wrote:
>
> hi,
> on 8.1.6 and 8.1.7 Enterprise Edition
> on Linux (SuSE 7.0) I found a strange behaviour:
>
> after the change from _nomount_ to _mount_
> (the same as to _open_)
> there is a rhytmic harddisk-activity every second.
> rdrdrd .....1 second silence ..... rdrdrd .....
>
> - with and without a Listener running
> - 256 MB RAM, unused Swapfile
> - no network active.
> - alert log shows no errors, except this:
> Load Indicator not supported by OS !
> - all background processes show zero-activity
> soon after startup, so I cannot identify
> one of them.
>
> This is specific to the Linux-Installation.
> I played around with 8.1.5 and 8.1.6 Enterprise on
> Windows NT 4 and NT 5 and found nothing
> of that kind.
>
> I thought of SMON rearranging blocks in the
> datafiles. But this behaviour lastet for
> hours on an idle database with almost nothing
> but system tablespace.
>
> any ideas ?
>
> --= Hermi =--

LGWR writes a little info the control file - but I thought it was every 3 seconds not every 1...

HTH

-- 
===========================================
Connor McDonald
http://www.oracledba.co.uk (mirrored at
http://www.oradba.freeserve.co.uk)

"Some days you're the pigeon, some days you're the statue"