Sorry working on two things at once. Anyone who has ever seen me
trying to juggle knows to run.
I know that CKD and ECKD do not exist in Linux/Unix land. What I
was getting at is, I thought that one of the sorts had a way to
take advantage of that.
If I knew c, I'd be tempted to tackle this.
Maybe once I get done learning Java.... (I'm being required to
learn it -- Long story).
Except a few good laughs. The java compiler looks at all source
in the folder/directory where it is reading the source you
specified for it to compile as it tries to resolve classes.
Screw up a source file trying out something and then run a
compile on something you know works.... Yeah go figure out those
errors. And then the idiosyncrasies of the IDEs they have.
I got so twisted I started using ISPF line commands (just
subconsciously did it) in note pad!!
Where is TSO/ISPF when you really need it, or CMS.....
Steve Thompson
More liquid analgesic pain killers are indicated.....
On 7/16/2024 7:48 PM, Farley, Peter wrote:
Re: “disk geometry that used CKD at a minimum, or FBA”, AFAIK no off-mainframe
system EVER used CKD formatted DASD. VSE sort certainly could use FBA, and
maybe VM/CMS as well. Again AFAIK, ALL off-mainframe disk geometry is
effectively FBA.
Re: “under understand how the disk is formatted?”, No I don’t believe so. That
level of I/O is in the kernel (or even the BIOS) on off-mainframe systems, so
user-land programs like a sort never see it.
Re: “run more like the sorts we are used to”, AFAIU that’s actually the
majority of the code base for products like DFSORT and SYNCSORT – the “user
interface” part. IMHO, re-engineering that part for Linux would likely be a
near-impossible task for someone without access to the proprietary user
interface designs.
It’s a lovely thought though.
I do know that SYNCSORT developed a Unix sort product back in the 1990’s
because an ex-manager and friend of mine helped them do it. Never saw the
product myself though, so I don’t know how much of the mainframe interface was
ported over. Don’t know if they continued the product through to today’s world
either.
Peter
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of
Steve Thompson
Sent: Tuesday, July 16, 2024 7:27 PM
To: [email protected]
Subject: Re: Inquiry on Powerful Sorting and Query Tools for Linux Platform
Not trying to hi-jack this subject, but I have questions about
sorting off mainframes with disk geometry that used CKD at a
minimum, or FBA.
Would a sort program have to know/understand how the disk is
formatted? Example: RAID-5? or EXT, EXT4, NTFS, FAT32, etc.?
I've only used a sort that came with a compiler (specifically the
Fujitsu COBOL compiler).
I understand that Linux does have a sort, but you have to
experiment with its commands before you will get it right.
It would be interesting if some sort could be ported to Linux so
it would run more like the sorts we are used to.
Steve Thompson
On 7/16/2024 6:47 PM, Wayne Bickerdike wrote:
Don't really know the answer, however, DB2 with an order by must perform
some kind of sort. Or any Linux relational database.
The RDB dream didn't really eventuate, we're still sorting lots of data the
old way.
On Wed, Jul 17, 2024 at 8:34 AM Jason Cai
<[email protected]<mailto:[email protected]>> wrote:
Hi all
DFSORT has impressed us greatly with its versatility, offering
functionalities beyond mere sorting, including robust key-based fuzzy
querying at exceptional speeds. As we are currently transitioning our data
from a mainframe (ZOS) environment to Linux, we are in need of tools that
can efficiently handle high-performance sorting and fuzzy querying of large
historical binary data on Linux.
Any advice or suggestions on optimizing these processes on Linux would be
greatly appreciated.
Thanks a lot!
Jason Cai
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