RE: diagnosing physical IO issues beyond the database
From: Allen, Brandon <Brandon.Allen_at_OneNeck.com>
Date: Tue, 28 Jul 2009 09:02:36 -0700
Message-ID: <64BAF54438380142A0BF94A23224A31E11290D0966_at_ONEWS06.oneneck.corp>
Use sar and/or iostat to see for yourself what the disk service and wait times look like from the OS perspective while you're running the problematic table scans, then if they're high ask your OS admin and SAN admin to explain why.
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Date: Tue, 28 Jul 2009 09:02:36 -0700
Message-ID: <64BAF54438380142A0BF94A23224A31E11290D0966_at_ONEWS06.oneneck.corp>
Use sar and/or iostat to see for yourself what the disk service and wait times look like from the OS perspective while you're running the problematic table scans, then if they're high ask your OS admin and SAN admin to explain why.
Regards,
Brandon
Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it.
-- http://www.freelists.org/webpage/oracle-lReceived on Tue Jul 28 2009 - 11:02:36 CDT