Revised GRS Entries with CON or EXCL requests

Oops - I forgot to add

We are z/OS V1.9 running 5 LPARs in a SYSPLEX all shared dasd.


A vendor has requested I update my GRS entries to the following statements:

    RNLDEF RNL(CON) TYPE(GENERIC) QNAME(SYSVTOC)
    RNLDEF RNL(CON) TYPE(GENERIC) QNAME(SYSZVVDS)
   
 
My current statements are:

RNLDEF RNL(EXCL) TYPE(GENERIC) QNAME(SYSZVVDS)
RNLDEF RNL(EXCL) TYPE(GENERIC) QNAME(SYSVTOC) 

I know from the Planning for GRS manual a CON: RESERVE requests should
result in only a global ENQ or a hardware reserve and a local (SYSTEM) ENQ.

And an EXCL should: Convert a SYSTEMS to SYSTEM request

Can anyone provide some insight as to what my impacts might be in making
this change? The vendor is going to be doing data set moves on my live
systems which will also be running a normal workload.

Will this cause reserves to cause me a problem at the volume level? My
concern is we are running with EXCL and they need us to run CON on VTOC and
VVDS. I would like to try and understand any impacts this type of change
could have.


Thanks for any input

Lizette

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to listserv@xxxxxxxxxxx with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html

.

Relevant Pages

  • Re: Revised GRS Entries with CON or EXCL requests
    ... What tooling are bringing in that the vendor is going to be using TDMF, LDMF, FDRPAS, FDRMOVE or something else? ... I know from the Planning for GRS manual a CON: RESERVE requests should ... result in only a global ENQ or a hardware reserve and a local ENQ. ...
    (bit.listserv.ibm-main)
  • GRS Entries with CON or EXCL requests
    ... A vendor has requested I update my GRS entries to the following statements: ... I know from the Planning for GRS manual a CON: RESERVE requests should ...
    (bit.listserv.ibm-main)
  • Re: GRS Entries with CON or EXCL requests
    ... I know from the Planning for GRS manual a CON: RESERVE requests should ... as much as any possible performance impact. ... there are spare CPU cycles so the CPU aspect of making the change ...
    (bit.listserv.ibm-main)
  • [NT] Bea Weblogic DOS device Denial of Service
    ... specific requests containing DOS-devices can cause a Denial of Service ... Bea Weblogic Server 6.1 Service Pack 1 for Windows NT/2000 ... The vendor was contacted on the 6th of November, ...
    (Securiteam)
  • Re: CPU Utilization by GRS
    ... GRS uses up CPU in proportion to the demands on the function. ... the systems involved need to send XCF signals to a contention ... By default, lock requests are issued synchronously to the CF (over time, ... XES will watch behaviors to determine if requests should be converted to ...
    (bit.listserv.ibm-main)