To share PDSEs, all LPARs must be a member of the same sysplex. From z/OS
DFSMS: Using Data Sets, topic 3.8.9.3.3 Choosing Volumes for PDSEs in a
Sysplex:
-=-=-=-=-
PDSEs are designed to be shared within a sysplex. When choosing volumes
for PDSEs in a sysplex, be sure to follow these rules:
o The volume serials for volumes that contain PDSEs must be unique
within a sysplex.
o A volume that contains PDSEs must not be open from more than one GRS
complex at a time.
o If PDSE extended sharing is active, a volume that contains a PDSE
cannot be accessed from more than one sysplex at a time.
In this context, a sysplex is all systems that can connect in a single XCF
group, and a GRS complex is all the systems in a GRS configuration. A
sysplex never spans more than one GRS complex. Note: for extended sharing,
a PDSE can only be shared by the members of a GRS complex that are also
members of the same sysplex. For example: in a six-system GRS complex,
with four of the systems within the sysplex and two which are not, PDSEs
can have extended sharing between the four members of the sysplex, but not
the other two, non-sysplex systems. See z/OS MVS Planning: Global Resource
Serialization for more information about the configurations that make up a
GRS complex.
If these volume assignment rules are not followed for PDSEs in a sysplex,
data set accessibility or integrity may be impacted.
-=-=-=-=-
Brian
On Wed, 17 Jan 2007 13:42:48 -0600, Rugen, Len wrote:
>I had hoped that our mainframe would be gone before I needed to exploit
>PDSEs for end users. Apparently Oracle 10G produces load modules that
>require LIBRARY datasets. We have 3 LPAR's on a z800 but not a SYSPLEX.
>
>Do I need to setup GRS (yuck) in a ring to safely share PDSES? The only
>other place I used PDSE's was for software install and they are
>read-only after they are created.
>
>How much pain is there to setup a GRS ring? When I RTFM, everything
>seems to talk about a XCF. I don't think I want or need XCF.
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
