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  3. December 2008

Re: YAIQ - Yet another ignorant question: multiple LPARs.

McKown, John wrote:

A sysplex is a way for z/OS and subsystems to "talk" to each other to
coordinate changes and access to resources. For example, RACF is the
security system on the z. I have a single database which contains all
users and all access definations for all systems. Every LPAR can safely
and directly do I/O to that database on DASD because they "talk" via
sysplex communications to "enqueue" access as needed for updating.

John:

Please review the three options "Comparison of logical replication, switched disks, and cross-site mirroring" from here:

http://tinyurl.com/57tpmv or
http://publib.boulder.ibm.com/infocenter/iseries/v5r4/index.jsp?topic=/rzaig/rzaigconceptsreplicationvsswitchable.htm

Do any of those seem to come close to how you think of 'sysplex'?

Note the left-side navigation pane to see where this positions you in the V5R4 Info Center. The overall discussion topic area might lead to other thoughts.

Tom Liotta


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