Re: RMAN performance issue after patching OS
From: Mladen Gogala <gogala.mladen_at_gmail.com>
Date: Wed, 25 Aug 2021 17:34:13 -0400
Message-ID: <2d4a23d9-a9ea-fdfd-6dd3-35adebf634f1_at_gmail.com>
Date: Wed, 25 Aug 2021 17:34:13 -0400
Message-ID: <2d4a23d9-a9ea-fdfd-6dd3-35adebf634f1_at_gmail.com>
Ah, now everything fell in its right place. I've seen that before. There has been a change of defaults and the default version of NFS that your server is trying to connect to is NFSv3. I have seen that on Slowaris:
There is one minute difference between NFSv3 and NFSv4: NFSv3 doesn't support asynchronous IO. Put an explicit vers=4.1 into the /etc/fstab and you should be good.
Regards
On 8/25/21 9:54 AM, Jay Hostetter
wrote:
Leng - to answer your questions:We did run a backup to a local disk, and it ran fine. I have been reviewing the v$ tables - our backups are using async IO.This is the command we are using:backup device type disk filesperset = 1 tag 'BACKUP_TEST_082521091605' database;
-- Mladen Gogala Database Consultant Tel: (347) 321-1217 https://dbwhisperer.wordpress.com-- http://www.freelists.org/webpage/oracle-l Received on Wed Aug 25 2021 - 23:34:13 CEST