Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Mailing Lists -> Oracle-L -> RE: EMC Storage Array Issue

RE: EMC Storage Array Issue

From: Koivu, Lisa <lisa.koivu_at_efairfield.com>
Date: Fri, 19 Apr 2002 13:38:47 -0800
Message-ID: <F001.00449EE5.20020419133847@fatcity.com>


Very interesting. So the EMC box didn't 'phone home' like it was suppossed to, to report this problem?

Thanks for sharing this Scott.

Lisa Koivu
Oracle Database Blue Softball Ankles
Fairfield Resorts, Inc.
Office: 954-935-4117

> -----Original Message-----
> From: Scott Canaan [SMTP:srcdco_at_ritvax.rit.edu]
> Sent: Friday, April 19, 2002 5:09 PM
> To: Multiple recipients of list ORACLE-L
> Subject: Re: EMC Storage Array Issue
>
> Since I started this thread, I thought I'd update everyone on what the
> problem ended up being. There is a problem with one of the power supplies
> on the switch in the SAN. The other power supply was not plugged in, so
> it
> halted everything occasionally. We plugged the other power supply in, and
> haven't had the problem since. Now we need to get the power supply
> replaced. Interesting that EMC tried to blame it on Oracle first.
>
> Scott Canaan wrote:
>
> > We have implemented a Sun Solaris Cluster (4 machines), connected to
> > an EMC storage array. The migration began last fall, and we now have 15
> > Oracle instances, with a mixture of 8.1.6 and 8.1.7, located there. We
> > recently have had 2 occurances of asynchronous I/O wait times exceeded.
> > When this occurs, every database crashes at the same time. The solution
> > from EMC is to turn asynchronous I/O off in all of the Oracle instances
> > (disk_async_io = false) and to increase the database writer slaves
> > (dbwr_io_slaves = <something not 0>) to emulate asynchronous I/O.
> > Has anyone run into this problem before? If so, how did you
> > "correct" it? My feeling is that EMC is trying to give us a bandage to
> > cover up the real problem, by trying to get Oracle to ignore it.
> >
> > Thank you.
> >
> > --
> > Scott Canaan (srcdco_at_rit.edu)
> > (585) 475-7886
> > "Life is like a sewer, what you get out of it depends on what you put
> > into it" - Tom Lehrer
> >
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > --
> > Author: Scott Canaan
> > INET: srcdco_at_ritvax.rit.edu
> >
> > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> > San Diego, California -- Public Internet access / Mailing Lists
> > --------------------------------------------------------------------
> > To REMOVE yourself from this mailing list, send an E-Mail message
> > to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
> > the message BODY, include a line containing: UNSUB ORACLE-L
> > (or the name of mailing list you want to be removed from). You may
> > also send the HELP command for other information (like subscribing).
>
> --
> Scott Canaan (srcdco_at_rit.edu)
> (585) 475-7886
> "Life is like a sewer, what you get out of it depends on what you put into
> it" - Tom Lehrer
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Scott Canaan
> INET: srcdco_at_ritvax.rit.edu
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
> --------------------------------------------------------------------
> To REMOVE yourself from this mailing list, send an E-Mail message
> to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
> the message BODY, include a line containing: UNSUB ORACLE-L
> (or the name of mailing list you want to be removed from). You may
> also send the HELP command for other information (like subscribing).

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Koivu, Lisa
  INET: lisa.koivu_at_efairfield.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).
Received on Fri Apr 19 2002 - 16:38:47 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US