LDS? What do the Mormons have to do with this? Are they encroaching on storage now?
Back to Friday musings.... Daniel McLaughlin Z-Series Systems Programmer Information & Communications Technology Crawford & Company 4680 N. Royal Atlanta Tucker GA 30084 phone: 770-621-3256 fax: 770-621-3237 cell: 770-666-7969 email: [email protected] web: www.crawfordandcompany.com John McKown <[email protected]> Sent by: IBM Mainframe Discussion List <[email protected]> 03/06/2009 12:44 PM Please respond to IBM Mainframe Discussion List <[email protected]> To [email protected] cc Subject "Media manager" is the future? ---------------------- Information from the mail header ----------------------- Sender: IBM Mainframe Discussion List <[email protected]> Poster: John McKown <[email protected]> Subject: "Media manager" is the future? ------------------------------------------------------------------------------- Or perhaps whatever has/will replace it? The reason that I ask is that it seems that while DFSMSdfp clings tenaciously to the 3390 DASD architecture, it is also using this interface (with 4K physical blocks) for all new I/O. IIRC, it was first just a part of VSAM. I am not sure, but I'd bet that PDS/E and HFS use it as well. Is this the "master plan" so that all access methods will eventually use this one interface? I could go with that if it meant that eventually non-3390 DASD architectures (such as SCSI/SAN) were supported. Just Friday musings. Brought on by my dislike of zFS being based on LDS data sets. Because what I recently needed was a really huge (10 x 3390-3) UNIX filesystem. Which meant a new storage class & storage group for segregation from other data. In the past (non-VSAM, non-HFS), I could just grab some "free" volumes and create a multi-volume dataset on them. Not any more. What a bother. -- John ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html Consider the environment before printing this message. This transmission is intended exclusively for the individual or entity to which it is addressed. This communication may contain information that is confidential, proprietary, privileged or otherwise exempt from disclosure. If you are not the named addressee, you are NOT authorized to read, print, retain, copy or disseminate this communication, its attachments or any part of them. If you have received this communication in error, please notify the sender immediately and delete this communication from all computers. This communication does not form any contractual obligation on behalf of the sender, the sender's employer, or the employer's parent company, affiliates or subsidiaries. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
