Why not put the z/Linux systems on a VSWITCH with the z/OS system? No more UCB problems. One set of UCBs to the VSWITCH in each guest. Oh, z/OS is not under z/VM. Well, VSWITCH the z/Linux systems along with the z/VM TCPIP stack, then hipersocket the z/VM TCPIP stack with z/OS. I'm not too familar with this, but I'm sure that this, or something close to it, would address your needs. The only minus is the single point of failure in the z/VM TCPIP stack. But that is fairly low risk.
John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * (817)-961-6183 cell john.mck...@healthmarkets.com * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM ________________________________ From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Martin, Terry R. (CMS/CTR) (CTR) Sent: Monday, April 05, 2010 2:52 PM To: IBMVM@LISTSERV.UARK.EDU Subject: HiperSocket UCBs Hi I have a bit of a delima. We do a lot of talking from our z/OS system over to our z/VM z/Linux systems via HiperSockets. We have a request for about 20 more z/Linux guests all of which will have two HiperSockets CHPIDs (3 UCBS per guest off of the different CHPIDS). The issue is that I am using pretty much the max number of UCBs allowed. So I was wondering what folks are doing when they have these requirements but are at the max of allowable addresses within the HiperSockets CHPIDs. I know that I can share the spanned HiperSockets CHPIDs across different LPARS using the same UCBs as the other LPARS as long as I do not re-use them on the same LPAR I am ok. So maybe the way to go is to create another LPAR or two I don't know? Any help would be appreciated. Thank You, Terry Martin Lockheed Martin - Citic z/OS and z/VM Performance Tuning and Operating Systems Support Office - 443 348-2102 Cell - 443 632-4191 [cid:image002.jpg@01CAD4D7.09654790]
