I concur/Lizette. CFSIZER will give you a size. Double that and make the large enough so that you never have to worry. Mine are 120 cyls to support 100K jobs and 300k JOES.
-----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Lizette Koehler Sent: Wednesday, May 6, 2020 11:14 AM To: [email protected] Subject: Re: JES2 Checkpoint Size 1.13 to 2.2 [CAUTION: This Email is from outside the Organization. Unless you trust the sender, Don’t click links or open attachments as it may be a Phishing email, which can steal your Information and compromise your Computer.] I would start with the CFSIZER tool on https://apc01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ibm.com%2F&data=02%7C01%7Callan.staller%40HCL.COM%7Cb6271fa8ebbf4037275208d7f1d8759a%7C189de737c93a4f5a8b686f4ca9941912%7C0%7C0%7C637243784317881373&sdata=Aw10NA1o1DOEHJntdPANPvjHjB%2FRoKYAt2yUd8AKP88%3D&reserved=0 - not great, but it would be a good starting point. Next use $DACTIVATE on you V2.2 system. See what it says. The ability to upgrade is not as important as how many BERTs you need or what the checkpoint size needs to be. Then if you have the room. Double those numbers You can never have too much room in JES due to control blocks changing over time I am up to a 100 cylinder checkpoint and a cf structure size of 78M In prod I have a cf structure for jes2 of 150MB There was a lot of try this, then try that. JES2 CKPT allocation has become more of an art. Lizette -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Elaine Beal Sent: Wednesday, May 6, 2020 9:06 AM To: [email protected] Subject: Re: JES2 Checkpoint Size 1.13 to 2.2 Allan, Thank you. How would I know how large to make it, leaving a reasonable amount of free space? ---------------------------------------------------------------------- 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 ::DISCLAIMER:: ________________________________ The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects. ________________________________ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
