Thanks for the idea - what I'm trying to avoid is copying (cp) the z/OS dataset to OMVS unless it has changed by comparing it's hash to the hash of the OMVS copy. Guess either way a copy will have to be done so I might as well just copy the z/OS to OMVS regardless.
Lionel B. Dyck <sdg>< Website: http://www.lbdsoftware.com "Worry more about your character than your reputation. Character is what you are, reputation merely what others think you are." - John Wooden -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Al Ferguson Sent: Sunday, January 12, 2020 2:49 PM To: [email protected] Subject: Re: Using OMVS cksum with z/OS datasets Lionel, Access to MVS Files from OMVS via "//‘your.filename.goes.here’” only works for some commands. Pre-Allocated DD’s are not available to the OMVS thread (usually). But you might try a stream … try [cat | cp] "//‘your.filename.goes.here’” | cksum I believe you can cat (copy to stdout) or cp (copy to stdout) using the "//‘your.filename.goes.here’” format. And then Pipe it to “cksum”. In this case I do not think you will see a major performance hit (as you are tossing out the copy anyway). Try both and pick the best performing one. _______________ Al Ferguson | mailto:[email protected] Milwaukee, WI USA | http://www.neptunescove.org Dulcius ex Asperis > On 12 January 2020, at 14:34, Lionel B Dyck <[email protected]> wrote: > > Is there a way to use the OMVS cksum command against a z/OS dataset? > > > > I tried: cksum "//'hlq.test.file'" > > > > And it objects but it works great on OMVS files. > > > > tia > > > > > > Lionel B. Dyck <sdg>< > Website: <http://www.lbdsoftware.com/> http://www.lbdsoftware.com > > "Worry more about your character than your reputation. Character is > what you are, reputation merely what others think you are." - John > Wooden > > > > > ---------------------------------------------------------------------- > 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
