Mark, This is not true. Just ran this today
DEFINE CLUSTER(NAME(OMVSU.TEC1.DB2AAAS.SERVICE) - LINEAR - STORCLAS(SCSYSTEM) - MB(500) SHAREOPTIONS(3,3)) _______________________________ Dave Jousma Vice President | Director, Technology Engineering Fifth Third Bank | 1830 East Paris Ave, SE | Grand Rapids, MI 49546 From: IBM Mainframe Discussion List <[email protected]> on behalf of Mark Jacobs <[email protected]> Date: Friday, October 24, 2025 at 12:05 PM To: [email protected] <[email protected]> Subject: Re: Configuring ZFS data sets CAUTION EXTERNAL EMAIL This message came from outside your organization. DO NOT open attachments or click on links from unknown senders or unexpected emails. Report Suspicious<https://us-phishalarm-ewt.proofpoint.com/EWT/v1/MwwqYLOC6b6whF7V!pHOFdhTiQyxKmg4Sp3Khl3g01dPae3MCOKFTSygwHwVMMJldFfDtH8cHbZCBsgYxyEXY-pNuyHr4hrYm0DzxrDU_kZCccsCs-rpIrbKAl8YXv-8pqDzqEs_GHBP97QbilUmeSx3JT0tI6fAM7204m2hSpfbR-6-RdL9PEUyaTTCv7jQNBsCPvNqxDlRsaBJsG5Ct_2MmfQ$> Using LINEAR won't work. You need to specify ZFS if you use IDCAMS to define a zfs file system. Your template JCL is the older/original method of defining a ZFS file system. It still works, but IDCAMS IMHO is easier. Mark Jacobs Sent from ProtonMail, Swiss-based encrypted email. GPG Public Key - https://urldefense.com/v3/__https://api.protonmail.ch/pks/lookup?op=get&[email protected]__;!!MwwqYLOC6b6whF7V!jj7sDnkR1VbeVWs3xMbs0oaynKGHtpHNyinibMu7S8iVyZTy3_rMiz0hwgrx6hFnjmYx0qH6XXbCu6JRqw7wfPvaMi1gu72LVoc$ On Friday, October 24th, 2025 at 11:46 AM, Colin Paice <[email protected]> wrote: > I'm about to set up some new ZFS data sets > Is there any guidance on the best way of doing it? > - My DEFINE cluster has LINEAR - but I see there is a ZFS option. Does it > really make a difference? > - My template JCL has "-compat" in it. Is this recommended ? > Are there any performance options I should be enabling? > Colin > > ---------------------------------------------------------------------- > 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 This e-mail transmission contains information that is confidential and may be privileged. It is intended only for the addressee(s) named above. If you receive this e-mail in error, please do not read, copy or disseminate it in any manner. If you are not the intended recipient, any disclosure, copying, distribution or use of the contents of this information is prohibited. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please erase it from your computer system. Your assistance in correcting this error is appreciated. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
