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 >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to [email protected]<mailto:[email protected]> with >> the message: INFO IBM-MAIN >> -- This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
