|
View previous topic :: View next topic
|
| Author |
Message |
Victor Niu
New User
Joined: 11 Mar 2010
Posts: 59
Location: China,Shanghai
|
|
|
|
excuted rexx UCBSEL from cbttape file020，can't get any UCB and UCBNX address.
/*rexx*/
CVT = STORAGE(10,4) /* LOAD A(CVT) */
DCVT = C2D(CVT) /* CONVERT TO DECIMAL */
UCB = STORAGE(D2X(DCVT+X2D(4E4)),4) /* LOAD A(CVTUCBA) */
DUCB = C2D(UCB) /* CONVERT TO DECIMAL */
I got result:ducb=0
DO I = 1 BY 1 UNTIL DUCB = 0
UCBN = STORAGE(D2X(DUCB+X2D(04)),2) /* LOAD UCBNUM ADDR */
UCBNX = STORAGE(D2X(DUCB+X2D(08)),4) /* LOAD A(UCBNEXT) */
UCBSTAT= STORAGE(D2X(DUCB+X2D(03)),1) /* LOAD UCB STATUS */
UCBTYP = STORAGE(D2X(DUCB+X2D(11)),1) /* LOAD UCBTBYT2 TYPE */
UCBDEV = STORAGE(D2X(DUCB+X2D(12)),1) /* LOAD UCBTBYT3 TYPE */
UCBTYP = STORAGE(D2X(DUCB+X2D(13)),1) /* LOAD UCBTBYT4 TYPE */
UCBMOD = STORAGE(D2X(DUCB+X2D(3E)),1) /* LOAD UCBMOD MODEL */
UCBSTAB= STORAGE(D2X(DUCB+X2D(22)),1) /* LOAD UCB ATTRIBUTE */
........................
the result: C2D(UCBNX)=0
can someone give some advice?thanks!
the environment is z/os v1.11. The UCB offset is correct comparing with data area books. |
|
| Back to top |
|
 |
Nic Clouston
Global Moderator
Joined: 10 May 2007
Posts: 2455
Location: Hampshire, UK
|
|
|
|
| What does running with a trace show? |
|
| Back to top |
|
|
enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10873
Location: italy
|
|
|
|
the approach You are using stopped working at least since the appearance of OS/390,
but IIRC even before, since the appearance of MVS/XA (or it was MVS/SP)
the uscbscan is done nowadays using the
| Code: |
139000 CVTUCBSC DC V(IOSVSUCB) - ADDRESS OF UCB SCAN @G860P46
139100 * SERVICE. @(DCR377) @G860P46
|
depending on the real need there are a few alternatives, but without You telling us little can be done to help You |
|
| Back to top |
|
|
Victor Niu
New User
Joined: 11 Mar 2010
Posts: 59
Location: China,Shanghai
|
|
|
|
hello,enrico
does it mean we can't get ucb info by rexx any more? ASM is necessary... |
|
| Back to top |
|
|
enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10873
Location: italy
|
|
|
|
repeat on 
| Quote: |
| depending on the real need there are a few alternatives, but without You telling us little can be done to help You |
anyway.. YES, assembler is needed |
|
| Back to top |
|
|
expat
Global Moderator
Joined: 14 Mar 2007
Posts: 8797
Location: Welsh Wales
|
|
|
|
| I'm intrigued as to why the need to know the UCB address |
|
| Back to top |
|
|
Victor Niu
New User
Joined: 11 Mar 2010
Posts: 59
Location: China,Shanghai
|
|
|
|
| need to get the online volume information,so .... |
|
| Back to top |
|
|
enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10873
Location: italy
|
|
|
|
the most common reason I found is to issue an LSPACE macro
to find out the residual space on a volume and do some in house implementation of some SMS logic
( delete and allocate mostly ) |
|
| Back to top |
|
|
enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10873
Location: italy
|
|
|
|
| Quote: |
| need to get the online volume information,so .... |
ever heard of ismf ...
| Code: |
Panel Help
——————————————————————————————————————————————————————————————————————————————
ISMF PRIMARY OPTION MENU - z/OS DFSMS Vz Rzz
Selection or Command ===>
0 ISMF Profile - Specify ISMF User Profile
1 Data Set - Perform Functions Against Data Sets
2 Volume - Perform Functions Against Volumes
3 Management Class - Specify Data Set Backup and Migration Criteria
4 Data Class - Specify Data Set Allocation Parameters
5 Storage Class - Specify Data Set Performance and Availability
6 Storage Group - Specify Volume Names and Free Space Thresholds
7 Automatic Class Selection - Specify ACS Routines and Test Criteria
8 Control Data Set - Specify System Names and Default Criteria
9 Aggregate Group - Specify Data Set Recovery Parameters
10 Library Management - Specify Library and Drive Configurations
11 Enhanced ACS Management - Perform Enhanced Test/Configuration Management
C Data Collection - Process Data Collection Function
G Report Generation - Create Storage Management Reports
L List - Perform Functions Against Saved ISMF Lists
P Copy Pool - Specify Pool Storage Groups for Copies
R Removable Media Manager - Perform Functions Against Removable Media
X Exit - Terminate ISMF
Use HELP Command for Help; Use END Command or X to Exit. |
| Code: |
Panel Help
——————————————————————————————————————————————————————————————————————————————
VOLUME LIST SELECTION MENU
Enter Selection or Command ===>
1 DASD - Generate a List of DASD Volumes
2 Mountable Optical - Generate a List of Mountable Optical Volumes
3 Mountable Tape - Generate a List of Mountable Tape Volumes
Use HELP Command for Help; Use END Command to Exit. |
| Code: |
Panel Defaults Utilities Scroll Help
——————————————————————————————————————————————————————————————————————————————
VOLUME SELECTION ENTRY PANEL Page 1 of 3
Command ===>
Select Source to Generate Volume List . . (1 - Saved list, 2 - New list)
1 Generate from a Saved List Query Name To
List Name . . Save or Retrieve
2 Generate a New List from Criteria Below
Specify Source of the New List . . (1 - Physical, 2 - SMS)
Optionally Specify One or More:
Enter "/" to select option Generate Exclusive list
Type of Volume List . . . (1-Online,2-Not Online,3-Either)
Volume Serial Number . . (fully or partially specified)
Device Type . . . . . . . (fully or partially specified)
Device Number . . . . . . (fully specified)
To Device Number . . . (for range of devices)
Acquire Physical Data . . (Y or N)
Acquire Space Data . . . (Y or N)
Storage Group Name . . . (fully or partially specified)
CDS Name . . . . . . .
(fully specified or 'Active')
Use ENTER to Perform Selection; Use DOWN Command to View next Selection Panel;
Use HELP Command for Help; Use END Command to Exit. |
|
|
| Back to top |
|
|
enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10873
Location: italy
|
|
| Back to top |
|
|
Victor Niu
New User
Joined: 11 Mar 2010
Posts: 59
Location: China,Shanghai
|
|
|
|
| I am developing some tools to compare the system parms before and after IPLs. These tools have to check dasd,apf,lnklst,SSI,IPL,ect. So automatic programs and jobs are necessary. |
|
| Back to top |
|
|
enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10873
Location: italy
|
|
|
|
why reinvent the wheel
what is wrong in using the ibm health checker |
|
| Back to top |
|
|
Victor Niu
New User
Joined: 11 Mar 2010
Posts: 59
Location: China,Shanghai
|
|
|
|
| The focus is "comparing".for developing environment,programmers always update system parms without notifying. |
|
| Back to top |
|
|
expat
Global Moderator
Joined: 14 Mar 2007
Posts: 8797
Location: Welsh Wales
|
|
|
|
| Victor Niu wrote: |
| The focus is "comparing".for developing environment,programmers always update system parms without notifying. |
Oh dear, this sounds like an extremely well run shop.
Anyway DCOLLECT will have everything you will ever need to know about DASD volumes and their associated UCB |
|
| Back to top |
|
|
enrico-sorichetti
Superior Member
Joined: 14 Mar 2007
Posts: 10873
Location: italy
|
|
|
|
| expat wrote: |
| Victor Niu wrote: |
| The focus is "comparing".for developing environment,programmers always update system parms without notifying. |
Oh dear, this sounds like an extremely well run shop.
Anyway DCOLLECT will have everything you will ever need to know about DASD volumes and their associated UCB |
Hi expat ! just choose
1) You did not notice the sentence I bolded in the quote
2) You forgot the sarcasm icon ( unfortunately there isn' t one )
I dare to say that if the programmers are allowed to update system parms
the shop is running very well... but down the toilet |
|
| Back to top |
|
|
expat
Global Moderator
Joined: 14 Mar 2007
Posts: 8797
Location: Welsh Wales
|
|
| Back to top |
|
|
Robert Sample
Global Moderator
Joined: 06 Jun 2008
Posts: 8697
Location: Dubuque, Iowa, USA
|
|
|
|
| Quote: |
The focus is "comparing".for developing environment,programmers always update system parms without notifying.
|
Oooohhhh ... I wanna work there! I could have FUN! I wonder how often the LPAR gets an IPL? |
|
| Back to top |
|
|
Garry Carroll
Senior Member
Joined: 08 May 2006
Posts: 1193
Location: Dublin, Ireland
|
|
|
|
| Quote: |
| Oooohhhh ... I wanna work there! I could have FUN! |
Oooohhhh NO! Surely the fun would be in having wagers on what (sub)-system you will log onto. ... logged on with APPLID(xxxxxxx) to IMS yesterday and this morning, but getting CICS (or something else) this afternoon?
Maybe regular upward revision of project estimates is a feature of this site?
Garry. |
|
| Back to top |
|
|
dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
|
|
|
|
Hello,
I don't recall ever hearing of a place that turned developers loose so that programmers always update system parms without notifying.
Maybe i misunderstand what "system parameters" means for this organization.
Regardless of the specifics, i have no idea how they survive letting multiple (probably unqualified) people just have at it. . . 
d |
|
| Back to top |
|
|
Victor Niu
New User
Joined: 11 Mar 2010
Posts: 59
Location: China,Shanghai
|
|
|
|
May you should say so bad system management,but for the development environment,it is the historical issue.Critical management will cause a lot of cost.
enrico and expat,thank you very much for your help.have a nice day!
: ) |
|
| Back to top |
|
|
dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
|
|
|
|
Hello,
| Quote: |
| Critical management will cause a lot of cost. |
Someone is most horribly mis-informed or under-qualified. . . Or someone just wants to let the programmers do this.
I've only limited experience (been involved with administration support for a couple of hundred Mainframe, UNIX, and Win-based environments). This has not been allowed except where the programmer "sand-box" is built and disassembled repeatedly from different "model" configurations. Or when the sandbox is not visable to anything but some project team. This pretty much eliminats comprehensive testing of the applications are integrated in some way.
Several times programming groups have tried to make the case that it would cost too much to properly manage (utter nonsense, of the "rules" are just awful) and the other is the infamous - "if we cannot do this ourself - it will delay the project" (only if everyone involved is incompetent). |
|
| Back to top |
|
|
|
|
