Re: (yet another) problem with zcx container

Thank you all for the answers ... They make a lot of sense ... -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: (yet another) problem with zcx container

I guess the same than you and for the same reasons, but I have no proof of it ... The only thing why I doubt about it is that I do not know why zCX needs FC-0104 ? Does FC-0104 changes something hardware-wise? > >My guess is NO. >Reason: the same as with z/VM. Multi-level z/VM causes DAT to

Re: (yet another) problem with zcx container

Hi Mike: Thanks for the answer My question tried to clarify whether (or not) when a zCX Linux image uses DAT and z/OS is running under z/VM, if it can be a TLB-hit or it always be a TLB-miss because the so many levels of SIE-virtualization Mauri.

Re: (yet another) problem with zcx container

Hi: BTW, speaking of running zCX under z/OS under z/VM ... Does anyone know whether (or not) the DAT translation is kept in the TLBs (CAM memory)? I don't know why, but I think there was a limit on the levels of hardware-assisted DAT translation ... I want to know whether running zCX on a

Mainframe PL/1 code for VSE with DBCS characters

Hi List, I'm looking for samples of PL/1 code for VSE with DBCS characters using graphical and mixed DBCS strings and whatever that may be in use in Japan. I'm also looking for the compiler options required to compile it on a z/VSE 6.1 environment. Thank in advance. Best Regards. Mauri.

Re: Linux address space on z/OS 2.4

Hi: It was always difficult for me to find materials about SIE ... A nice source of data I found was the Linux Kernel sources, because of KVM ... It is nice to see for example how the instructions starting with a B2 opcode are intercepted It is good to understand how the job is actually

Re: AW: Re: Question on z/EDC - reading it compressed

Hi, I wish I could FTP it compressed ... It could shorten a large FTP we execute daily :-( Thanks for the answer ... I understand it. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to

Question on z/EDC - reading it compressed

Hi: My understanding is that one a file was compressed with z/EDC is it is like a .zip file and reading it unzips it. Is the above is wrong, please correct me. If no, let's continue Suppose I do have a huge file which I will compress with z/EDC on my disk and I want to FTP it to another

Re: Which PGSER service does DB2 uses for fixing

Wayne / Lizzete Thanks for the answer. I suspected about IARV64 but I missed the pagefix option of it while googling ... Seems I was looking at the "Assembler macros for kids" manual rather than the authorized one :-) My fault. I will benchmark it again ... I will use the sample at

Which PGSER service does DB2 uses for fixing

Good morning list: I assume (may be wrongly) that if a buffer pool is not defined for page fixing on DB2, then DB2 issues a PGSER FIX before the I/O to the buffer. My question is: - Does DB2 use PGSER with BRANCH=Y or BRANCH=SPECIAL ? From my benchmark their cost is different ... - Or ... my

Re: IBM MASS and ATLAS with Vector Facility for z/Architecture Exploitation

I think that LAPACK is the engine under the hood of popular LA commercial packages ... And the good thing of ATLAS is that it is automatically tuned, I mean, it adapts the matrix operations to the processor capabilities, like cache-sizes in order to subdivide the matrices onto smaller ones to

Re: Dataspace versus common area above the bar

Hi John: My advise is to benchmark ... And it might be different on different machines. So if 64-bit runs better in your current machine, don't through away your old AR code, because it might be useful in your DR site or a new machine. My advise is to benchmark because I found myself more

Re: Question on 3390D

Hi: Can you tell me whether (or not) are problems or things to care about before implementing? Also, can you explain what exactly mean different name for the CU? Any IODF snippet you can show for me to see the difference? Thanks in advance for your answer.

Re: Question on 3390D

Nobody using 3390D? -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: Question on 3390D

Good morning list: Does anybody use 3390D devices in his/her IODF? I did not get answers to my original question and I puzzled whether (or not) it is because nobody uses this option, or because other reason. Thanks in advance for your help. Mauri.

Question on 3390D

Good morning: I'm considering whether (or not) to define our PPRC devices on SS 1 as 3390D for a new shinny DS8870. I also want to define the dynamic PAVs on SS 2. Is there any experience you can share? Gotchas? Horror stories? Things to consider? Any problem with IBM products or ISVs?

Re: Question on 3390D

The reasons why I bother are related to the simplification of some operational procedures related to DR. It is a long and boring story and it will not add to the discussion. But specifically - The 64K is far from being the limit ... However if 3390D is not a nightmare, I prefer to implement the

Question on DB2 and LFAREA (large-pages)

Good day !!! I'm looking on how to implement DB2 and its large page support. One question ... Suppose I allocate an LFAREA of 4.5 GB based on the fact that the fixed DB2 bufferpools use 4GB. Then my DBA requests to dynamically ALTER the bufferpool to 5GB. What's happen then? a - Is it

Re: Question on DB2 and LFAREA (large-pages)

Mark, Sam, Thank you for your prompt answers ! Mauri. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Delay Problem with SSL and DVIPA

Good morning list, We are facing a strange delay problem with TN3270 and SSL which I describe below. The configuration is as follows: PRD1 and PRD2 are production LPARs. DEV1 and DEV2 are development LPARs PRD1 and DEV1 are on a z114 machine with two OSA cards shared among the LPARs PRD2

Strange delay with SSL and DVIPA

My customer is facing a strange delay problem with TN3270 and SSL which I describe below. The configuration is as follows: PRD1 and PRD2 are production LPARs. DEV1 and DEV2 are development LPARs PRD1 and DEV1 are on a z114 machine with two OSA cards shared among the LPARs PRD2 and DEV2 are on