No JES3 was not involved in the staging and destaging. Also, a VTL uses DASD to simulate tape. The 3850 implemented virtual 3330 volumes, staging data from helical recording tape cartridges to 3330 or 3330-mode 3350 staging drives.
With luck it didn't drop cartridges on the floor. ;-) -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Steve Thompson <[email protected]> Sent: Thursday, December 21, 2017 3:29 PM To: [email protected] Subject: Re: Use of 3850 MSS? The US Gov't data center I worked in obtained a 3850 (MSS - Mass Storage System). At least I remember it being called a 3850. It was 1979 when that system was installed. The best way to explain/describe its function: It was really an early ATL/VTS (Virtual Tape System). So, JES3 would stage off to a 3350(s) from the 3850, and then stage the data set back to the 3850 carts. The system had two storage units (Honeycomb design for holding the "tape reel/cartridge") a "parking unit" and an access unit. Plus it had 16 3350 drives dedicated to it. That's about as much as I remember. Regards, Steve Thompson On 12/21/2017 01:33 PM, Seymour J Metz wrote: > I have a dispute at > <https://secure-web.cisco.com/19nrxTeW_NGaE79QcLvRqvcmHhC8rQ8teel9lMO_5h7cjMWz5U996ofKIUG_JVkQEsQf9OEMY8GvAO2kPqVbh02AZoMuf3opvNJs8VwcGRSDqCU8IzrVzpgJC3gIF1i70pOZIj6-1fAxYh--Kwqnzlw8LuKtQs74QooFmchnb-84eVNT7eIDIHgI5vyw40lyMr5QhMSXJB2CWeBbjKHqUTMo0DMSEk4RXNi5pMVYZGr_4ZnlWNCTpHM5MWRkKfbr5dVTaOFUdtrmjetIbYqY77Hp76SFNELYTgnFujWnEipRw922O2MLeVf5BUZAPqnT_H8tT0A58T4BJfeYmlHb0J4gnCjL76f-VOuNCEmjHvcS6bS1gTYfuGFAbQamKATQp/https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FTalk%3AHistory_of_hard_disk_drives#Competing_devices> > with another Wikipedia editor about the nature of the 3850, and would like > some feedback on who used it for what. Thanks. > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
