last week we had a whole cabinet of networking equipment in our CR shutoff. (have not determined the cause, although electricians were in the building)
anyway, power went off, the switch which all the servers connect to went down (dual power supplies - yes, separate circuits for the two power supplies - no!) the switch IMLed and connectivity came back for AIX and PC servers - not for the mainframe. first question: why doesn't VM TCPIP recover like AIX? i have a VSWITCH set up with two controllers for failover and two OSAs for physical failover. i see in the OPERATOR log where the VSWITCH tried to failover to the other VSWITCH controller and then tried to failover to the other OSA. neither worked because both OSAs lost network connectivity when the switch went down. what should be the recovery approach in this situation? i varied the OSA devices offline: 10:20:36 HCPRFC6858I RDEV 0500 has been deleted 10:20:36 HCPRFC6858I RDEV 0501 has been deleted 10:20:36 HCPRFC6858I RDEV 0502 has been deleted and varied the PATH off and back on. i varied the OSA devices online and they came back: 10:20:48 HCPRFC2264I Device 0500 is available and online. 10:20:48 HCPRFC2264I Device 0501 is available and online. 10:20:48 HCPRFC2264I Device 0502 is available and online. i shutdown all the stacks that connect to the VSWITCH (altho i may have missed a test zVSE system) and then forced off VSWCTRL1 and VSWCTRL2. when i restarted the VSWITCH controller i got an error message: 10:21:46 USER DSC LOGOFF AS VSWCTRL1 USERS = 49 FORCED BY MAINT 10:21:50 USER DSC LOGOFF AS VSWCTRL2 USERS = 48 FORCED BY MAINT 10:21:54 AUTO LOGON *** VSWCTRL1 USERS = 49 BY MAINT 10:21:55 HCPSWU2832E The connection for VSWITCH SYSTEM VSW1 is not active. HCPSWU2832E None of the RDEVs are available working QDIO OSA Express devices. prg Phillip Gramly Systems Programmer Communications Data Group Champaign, IL
