HSM's usage of RLS Access for the control data sets is driven by the PROCLIB value for CDSSHR. CDSSHR=RLS indicates that HSM should access the CDSes in RLS mode. If CDSSHR is not specified, or has any other value, then you are not using RLS for HSM.
DCOLLECT behaves this way because it is not running under the HSM address space, so it is how we determine the proper way to open the control data sets concurrently with HSM. BTW - Using RLS to access the HSM control data sets is my second rated best practice for HSM. If you run concurrent HSM activity across multiple LPARs, it can significantly improve elapsed times. My highest rated best practice for HSM is to use zEDC. zEDC does wonders for HSM elapsed times and storage reduction. If migrating to ML1, it also reduces cpu consumption. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN