[U2] Unidata take advantage of DIO / AIO /CIO in JFS2 filesystem

2011-05-10 Thread Dan Goble
We have been dealing with performance issues with our system and it seems to be I/O bound when we look at the stats using nmon and topas. We have our SAN engineers looking at it from the backend to make sure that it is tuned well, plus IBM looking from an AIX point of view. One thing I was

Re: [U2] Unidata take advantage of DIO / AIO /CIO in JFS2 filesystem

2011-05-10 Thread Wally Terhune
-users-boun...@listserver.u2ug.org] On Behalf Of Dan Goble Sent: Tuesday, May 10, 2011 9:23 AM To: U2 Users List Subject: [U2] Unidata take advantage of DIO / AIO /CIO in JFS2 filesystem We have been dealing with performance issues with our system and it seems to be I/O bound when we look

Re: [U2] Unidata take advantage of DIO / AIO /CIO in JFS2 filesystem

2011-05-10 Thread Dan Goble
: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of Dan Goble Sent: Tuesday, May 10, 2011 9:23 AM To: U2 Users List Subject: [U2] Unidata take advantage of DIO / AIO /CIO in JFS2 filesystem We have been dealing with performance issues with our system