Steve, The last place I worked we had 3390, 3390A and 3390B devices addresses. For the 3390B/3390A setup we used 200 3390B and 56 3390A. That seem to handle the majority of our work load. We placed the 3390A addresses in SS1 and the 3390B addresses in SS0. Don't know if it matters but the only issue we ran into was with z/VM. At the time we did this the level of z/VM did not support 3390A addresses being in SS1 so for those addresses we used SS0.
We also used HyperPAV, MIDAW and High Performance FICON. Paul -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Mike Schwab Sent: Wednesday, May 21, 2025 7:39 PM To: [email protected] Subject: Re: 3390A’s I used them on real hardware. 1 for 1 on static. Need about 10% of each LCU for the busy volumes so 230 real 26 for PAVs. On Wed, May 21, 2025 at 6:42 PM Steve Beaver < [email protected]> wrote: > Is anyone using 3390A’s? > > > Sent from my iPhone > > No one said I could type with one thumb > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO IBM-MAIN > -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- 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
