KAIO and PDQ PRIORITY

Hi! Here is the problem: we were using no pdq queries for some period of time (MAXPDQPRIORITY was set to 0) but when we decided to use it (we have a lot of stored proc with SET PDQPRIORITY HIGH inside of it) we set it (MAXPDQPRIORITY) to 40. And when 2 queries (in different session) with the PDQPRIORITY HIGH start working in parallel one of it stop working (previously it works 2 sec and I was waiting for 2 minutes) -> had seen the log and saw the following: 10:43:47 Checkpoint Completed: duration was 0 seconds. 10:53:47 dynamically allocated new shared memory segment (size 8388608) 10:53:50 dynamically allocated new shared memory segment (size 8388608) 10:53:53 KAIO: out of OS resources, errno = 11, pid = 4120 10:53:53 KAIO: out of OS resources, errno = 11, pid = 4121 10:53:58 KAIO: out of OS resources, errno = 11, pid = 4120 Looks like UNIX has not enough memory. Nothing helps to make my session stop idling and i had to kill it. When we restored MAXPDQPRIORITY to 0 all start working fine but PDQ HAD TO SPEED UP OUR QUERIES !. My question is -- how I could use PDQ without such problems ? Sincerely, Alexander P.S. We are using 7.23TC1 on NCR MP-RAS SVR4 UNIX System V Release 4.0 All dbspaces is on raw devices placed on RAID 5. -- Alexander V.Didytch, Kyiv, Ukraine Common wisdom is something that is widely known but usually ignored.