It is not. That was about the only thing I could come up with but wanted to run this by the experts.
----- Original Message ----- From: "Mark Jacobs - Listserv" <[email protected]> To: [email protected] Sent: Thursday, April 28, 2016 8:36:11 AM Subject: Re: PDS I/O Performance Improvement Is it defined to VLF? > Kreiter IBM-Main <mailto:[email protected]> > April 28, 2016 at 8:32 AM > Hello, > > I'm looking for some suggestions on how to possibly improve I/O > performance to a PDS. A user is running a job that is reading a large > parmlib (through PROJCL I believe). I think the access is random > rather than sequential. The parmlib has ~180,000 members is has an > LRECL of 80/BLKSIZE of 27,920. The performance team has reviewed a > found ~ 6ms response time to the volume that houses the PDS with most > of the time being connect time. > > Thanks, > Chuck > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > > Please be alert for any emails that may ask you for login information > or directs you to login via a link. If you believe this message is a > phish or aren't sure whether this message is trustworthy, please send > the original message as an attachment to '[email protected]'. > -- Mark Jacobs Time Customer Service Technology and Product Engineering The standard you walk past is the standard you accept. Lt. Gen. David Morrison ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
