Alan: Actually, the z800 can connect to parallel channels via the IBM 9034 Escon to parallel converter box. Used, they are about $2,000 each (I think). You can also use them to connect your 37x5 devices as well, but if you're running PEP you'll want to check the serial number on the 9034. The first "x" number of them did not support byte channel devices. Check IBM Link for the "minimum" serial number for such devices.
Hope this helps. Edwin Handschuh Enterprise Systems Architect z/OS, OS/390 SYSPLEX, DB2 Data Sharing, CICS Systems Programmer Independent Consultant SoftExcell, Inc. (215) 783-2208 - cell (215) 641-9775 - home (888) 445-0659 - pager [EMAIL PROTECTED] Online resume': www.EdwinHandschuh.com/eth.doc Beautiful vacation properties: www.BeachVaca.com -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED]]On Behalf Of Joe Poole Sent: Wednesday, January 15, 2003 10:28 AM To: [EMAIL PROTECTED] Subject: Re: 2074 and the HMC If I remember correctly, the z800 has no parallel channels. That rules out native parallel 3274 or 3174 connection. However, the used equipment market has 3174s with internal Escon, although pricey in the $4,500 range. Parallel to escon converters are available, which makes a regular 3174L parallel equipped usable for much less money ($<500). Used equipment dealers could set you up quickly. Try a google search with 'used 3174 controller'. The 2074, if your budget allows, is the best bet since a single unit can handle all the LPARs you may define, with a console in each. We use an old 3274 parallel attached controller to our z900. On Wednesday 15 January 2003 09:48, you wrote: On Wednesday, 01/15/2003 at 03:55 EST, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > Can anyone help me with this issue? > > I am responsible for getting a z/800 up and running with z/VM and > Linux. I am still caught up on the hardware stage though. I was > told by people that I absolutely NEED a 2074 (or a 3174 and a > console) controller to install VM. I've heard several places that > the HMC and SE will not allow me to interact with the z/VM > installation program. Now, as we are getting closer to bringing > our z/800 to life, I am hearing from someone that we CAN use the > HMC to interact with the z/VM installation program and we DO NOT > need a 2074 (or 3174) at all. Can anyone shed some light on this > mystery? And if possible, can you point me in the direction of > the appropriate Redbook and/or official IBM documentation? > Thanks. A 3270 is required for the installation and configuration of z/VM. Once the system is installed and configured (including VM TCP/IP), then the system console on the HMC is sufficient to OPERATE the system. Telnet can be used to access the system so that you can perform additional system configuration. The requirement to have a 3270 for TCP/IP configuration is listed in the General Information Manual ("TCP/IP for z/VM Hardware Requirements", p. 15 in z/VM 4.2 version). The addition of an ifconfig command in z/VM 4.3 can reduce the need for a 3270 even more, but permanent changes to your CP or TCP/IP configuration will require a 3270 so that you can edit files (unless you are big on line-mode editing or are a CMS Pipeline expert). If you are using DirMaint, it is much easier with the menus, requiring a 3270 (also mentioned in the General Information Manual). On a personal note, I have never understood the aversion to having 3270 access for all LPARs on all CECs. Given the value you receive, the IBM 2074, or similar non-IBM products, are worth the relatively small expense. In an emergency, local 3270 access will be your best friend. I would not want to try to wade through a TCP/IP console log looking at traces using the HMC... Alan Altmark Sr. Software Engineer IBM z/VM Development
