no issue at hardware level. sysadmin checked it. The HIGH WIO issue again started at the same interval (yesterday also it happened at the sametime)( I suspended all the jobs. still the WIO is high. Not sure whichprocess is causing this high WIO. DEEDSD@xxxxxxxxxxxxxx wrote: Pardon the all-caps business that shows my email id - it's a Lotus Notes thing and I haven't gotten around to figuring out how to fix it. You may want to get your sysadmins involved. Are the controllers insanely high as well (iostat -xnC 1 | grep c)? Has anything changed on the box recently? We had a server that had something funny happen on either the settings for HBAs or the mount options of the disks after a frame migration. I don't recall what the final resolution was. No activity on the database whatsoever, but the I/O wait was incredibly high and the average service time stunk. Also, try a mkfile on one of the filesystems with Oracle down and see if that makes the associated disk go crazy. raja rao T To: ganstadba@xxxxxxxxxxx Sent by: cc: oracle-l@xxxxxxxxxxxxx oracle-l-bounce@freelis ts.org bcc: Subject: Re: oracle is causing high WIO 10/24/2005 12:25 PM Please respond to raja4list even after the startup restrict also the below is the WIO: $ sar -u 2 5 SunOS oracle 5.9 Generic_117171-02 sun4u 10/24/2005 12:09:30 %usr %sys %wio %idle 12:09:32 11 6 64 19 12:09:34 12 7 66 16 12:09:36 4 1 90 6 12:09:38 0 0 94 5 12:09:40 0 0 90 10 $ CAN SOMEONE hlep me. we are stuck here on the production db. Michael McMullen wrote: startup restrict and see what it is doing. ----- Original Message ----- From: raja rao To: raja4list@xxxxxxxxx ; Michael McMullen ; oracle list Sent: Monday, October 24, 2005 12:10 PM Subject: oracle is causing high WIO It seems the problem is with oracle. Now when I shutdown the WIO is 0% AND when i start oracle, it is showing WIO as 80-90% $ sar -u 2 4 SunOS oracle 5.9 Generic_117171-02 sun4u 10/24/2005 11:54:39 %usr %sys %wio %idle 11:54:41 4 4 85 6 11:54:43 1 2 83 14 11:54:45 1 2 81 16 11:54:47 2 2 82 13 $ how to find out why oracle is causing this high WIO ? can someone help me raja rao wrote: Yes, When the db was down, there was no change in WIO. Means, the databse connections are not casing this high WIO. -- //www.freelists.org/webpage/oracle-l Yahoo! FareChase - Search multiple travel sites in one click. -- //www.freelists.org/webpage/oracle-l --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click.