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DXR100I irlmx STOR STATS

Explanation

Message DXR100I is issued in response to the following command:

F irlmproc,STATUS,STOR

The message number is followed by multiple lines of output, including some or all of the following information.

PC: text
The parameter as specified in the irlmproc. Its value is YES. Monitor the PVT and AHWM value when this is YES.
LTEW: text
The lock table entry width, which is the number of bytes needed for each lock table entry in the lock structure. The more users in the group, the more bytes are needed to manage each lock table entry. Expected values are:
  • 2 (for up to six users)
  • 4 (for up to 22 users)
  • 8 (for up to 32 users)
  • N/A (if the IRLM is not connected to a group)
LTE: num M
The number of lock table entries in units of 1,048,576 that were available in the coupling facility the last time this IRLM was connected to the group. If the value is less than one unit, the value is zero.

You can set this value initially with the LTE parameter in the IRLMPROC. Use the IRLM modify command F irlmproc,SET,LTE= to change this value.

This field is valid only for SCOPE=GLOBAL or NODISCON.

RLE: num
The number of record list entries available in the coupling facility the last time this IRLM was connected to the group.

This field is valid only for SCOPE=GLOBAL or NODISCON.

RLEUSE: num
The number of record list entries s that were in use in the coupling facility at the time the MODIFY command is issued. If the IRLM is disconnected from the CF, this number represents those in use when last updated prior to DISCONNECT.

This field is valid only for SCOPE=GLOBAL or NODISCON.

BB PVT: num M
The extended private (below the bar) storage region limit threshold that is monitored for control blocks. When this limit is reached, new lock requests receive reason code 08 out-of-storage reason code unless they are must-complete requests. The default value is determined from the size of the extended private storage value minus 10% for a non-lock buffer to be used for IRLM and system required storage.

Use the IRLM MODIFY command MODIFY irlmproc,SET,PVT= to change this value.

AB PVT (MEMLIMIT): num P
Displays the current limit to private storage above the bar, also known as the MEMLIMIT, that is managed by MVS™. This storage is used for locks. IRLM monitors the use of above-the-bar storage, and if it exceeds ninety percent of MEMLIMIT, then non-must-complete requests fail with reason code 08, the out-of-storage reason code.

Use the IRLM MODIFY command MODIFY irlmproc,SET,MLT= to change this value.

CSA USE:
Displays information about the Common Service Area.
ACNT: num K
Is the current CSA + ECSA usage for lock control structures. This storage is called accountable because it is accountable against the MAXCSA value. Its value is specified as either K for kilobytes or M for megabytes. When PC=YES, this value will be 0K.
AHWM: num K
Is the high water mark or greatest amount of CSA + ECSA allocated by IRLM during this initialization period for lock control structures. Its value is specified as either K for kilobytes or M for megabytes.
CUR: num K
Is the current CSA + ECSA usage. Its value is specified as either K for kilobytes or M for megabytes. This value accounts for CSA + ECSA storage obtained in IRLM. IRLM often gets storage for locks under an application's ASID and manages this storage regardless of the status of the owning ASID. The display of cur storage accounts for all of these under this IRLM's CSA usage.
HWM: num K
Is the high water mark or greatest amount of CSA + ECSA allocated by IRLM during this initialization period. Its value is specified as either K for kilobytes or M for megabytes.
ABOVE 16M: num num K
The number of IRLM control block segments above 16M and the amount of storage allocated to those segments. The amount of storage is specified as either K for kilobytes or M for megabytes.
BELOW 16M: num num K
The number of IRLM control block segments below 16M and the amount of storage allocated to those segments. The amount of storage is specified as either K for kilobytes or M for megabytes.
AB CUR: num M
Applies to Db2® for z/OS®: The current 64-bit common storage usage. Its value is specified as either M for megabytes or G for gigabytes. This value accounts for all 64-bit common storage obtained in IRLM and it is managed by IRLM.
AB HWM: num M
Applies to Db2 for z/OS: The high water mark or greatest amount of 64-bit common storage allocated by IRLM during this initialization period. Its value is specified as either M for megabytes or G for gigabytes.
PVT USE:
Displays information about private storage.
BB CUR: num K
Is the current below the bar private usage. Its value is specified as either K for kilobytes or M for megabytes.
AB CUR: num M
Is the current above the bar private usage. Its value is specified as either M for megabytes or G for gigabytes.
BB HWM: num M
Applies to Db2 for z/OS: The high water mark or greatest amount of below the bar private storage allocated by IRLM during this initialization period. Its value is specified as either M for megabytes or G for gigabytes.
AB HWM: num M
Applies to Db2 for z/OS: The high water mark or greatest amount of 64-bit private storage (above the bar) allocated by IRLM during this initialization period for lock control structures. Its value is specified as either M for megabytes or G for gigabytes.
CLASS text
A tabular summary of storage allocation, in the format:
CLASS   TYPE  SEGS     MEM
CLASS text
Specifies the category of storage. Expected values are:
ACCNT
The storage allocated to IRLM lock control blocks.
PROC
The storage allocated to IRLM structures used for IRLM processing (including requests). This storage includes CSA, ECSA, and IRLM private storage.
MISC
The storage allocated for the rest of IRLM's needs. This includes trace buffers and other diagnostic structures. This storage includes CSA, ECSA, and IRLM private storage.
TYPE text
Specifies the subcategory for CLASS. For example, T-1 is storage for resource block structures, T-2 is storage for resource request structures, and T-3 is storage for requestor structures. The storage for types T-1, T-2, and T-3 is allocated from ECSA when PC=NO or IRLM private storage when PC=YES.
SEGS num
The number of storage segments allocated
MEM num K
The storage specified as . Its value is specified in one of the following units: K for kilobytes, M for megabytes, or G for gigabytes.

System action

Processing continues normally.

Sample output

DXR100I IR21021 STOR STATS
      PC: YES   LTEW:  32 LTE:     0M RLE:     3046  RLEUSE:     0
      BB PVT:  1495M  AB PVT (MEMLIMIT):  16383P
      CSA USE: ACNT:     0K  AHWM:     0K  CUR:   309K  HWM:   309K
              ABOVE 16M:    15    312K     BELOW 16M:     0      0K
              AB CUR:              25M     AB HWM:             150M       
      PVT USE:   BB CUR:  4377K        AB CUR:     5M                           
                 BB HWM:   1.5M        AB HWM:    12M                     
      CLASS   TYPE  SEGS     MEM   TYPE  SEGS     MEM   TYPE  SEGS     MEM      
      ACCNT    T-1     2      4M    T-2     1      1M    T-3     1      4K      
      PROC     WRK     4     20K    SRB     1      1K    OTH     1      1K      
      MISC     VAR     8   4310K    N-V    12    323K    FIX     1     24K  
          DXR100I End of display
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