Al,

The KEY() piece of data in a storage display indicates the storage key
the block is in, whether it is protected or not, has it been referenced
and has it been changed.

The last time I looked this up, and I don't remember where I found it,
the KEY() value decodes to the following:

KEY() => ?? means that the storage protection information is not
available
KEY() => FF see KEY() = ??

Otherwise:
KEY()           => B'kkkkprc?':
   
     kkkk       => storage key of the 4k block
     p          => 0 = page is not protected, 1 = page is protected
     r          => 0 = page has not been referenced, 1 = page has been
referenced
     c          => 0 = page has not been changed, 1 = page has been
changed

If memory serves me correctly, the referenced and changed bits are the
status since the page has last been paged out. However, someone will
probably correct me on this if I am wrong.

Chuck

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of al chu
Sent: Tuesday, October 02, 2007 4:51 AM
To: [email protected]
Subject: IPCS L command returns KEY(??)

Hi

 

Does anyone know what KEY(??) means in the output of LIST command.

I have the following output

                                                 

LIST 8BD000. ASID(X'0288') LENGTH(X'30') AREA    

ASID(X'0288') ADDRESS(8BD000.) KEY(??)           

008BD000 LENGTH(X'30')==>All bytes contain X'00'

 

Thanks in advance.

Al

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