True, but recording to a logstream, even without a CF, enables the ability to use compression on the SMF data being written and cryptographic signing of those records too.
Mark Jacobs Sent from ProtonMail, Swiss-based encrypted email. GPG Public Key - https://api.protonmail.ch/pks/lookup?op=get&[email protected] ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Friday, November 15, 2019 10:35 AM, Allan Staller <[email protected]> wrote: > What others have said, Read the books,.... > You did not say what your environment is (single image, base sysplex, > parallel sysplex). > IMO, unless/until you are running a parallel sysplex, logstreams are of > minimal (if any) benefit. > > A parallel sysplex requires a coupling facility to support logstreams. > If you do not have a coupling facility, DASD only logstreams are available. > > DASD only logstreams cannot be shared. This negates the major benefit of > defining the logstreams in the first place. > > So unless you are running a parallel sysplex, the only thing you have changed > from what you are doing today, > is the method of recording and possibly increased the maximum recording rate > > HTH, > > -----Original Message----- > From: IBM Mainframe Discussion List [email protected] On Behalf Of > saurabh khandelwal > > Sent: Thursday, November 14, 2019 11:09 PM > To: [email protected] > Subject: Collecting SMF dataset using LogStream > > Hello Group, > > Currently we have z/OS 2.1 system and collecting SMF datasets using MAN1, > MAN2 etc dataset and then during every smf switch, we extract records related > to db2, cics, TCPIP, RMF in seperate datasets and then archive these dataset > in regular basis. > > But we upgrading system to z/OS 2.3 and there is feature of using logsteam to > collect smf records rather then using MAN datasets and then use seperate log > stream for db2, cics, TCPIP and collect particular record type into that > > But I am unable to find any steps to configure these logsteam for these > purpose. Can you please help me to do . > > Thanks for your help > > -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > Thanks & Regards > Saurabh Khandelwal > > ------------------------------------ > > 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
