H06.27 Software Installation and Upgrade Guide

CLuster I/O Module (CLIM)

The CLuster I/O Module (CLIM) is introduced in the H06.16 RVU. CLIM is a rack-mounted HP

ProLiant class server that provides connectivity between the NonStop host system and either the

network or the storage devices. For CLIM upgrade procedures, see the Cluster I/O Protocols (CIP)

Configuration and Management Manual.

NOTE: Because H06.16 is the earliest H-series RVU to support CLIMs, you cannot fallback CLIMs

on an H06.16 RVU system to an earlier H-series RVU.

CLIMs with software associated with H06.16 are not compatible with H06.17 or later RVUs.

However, if you are migrating from an H06.16 RVU to an H06.17 or later RVU, the software

upgrade procedures in this manual are ordered so that the CLIM and RVU compatibility is assured

because the RVU on the host is updated first, then, while the processors are halted, the CLIMs are

updated to the CLIM software version associated with this RVU. When the system is loaded, the

CLIM and the NonStop host are at the same level and are therefore compatible.

If the CLIM is in the STARTED state, you can determine the CLIM software version by using OSM

Low-Level Link, OSM Service Connection or by entering:

SCF-> VERSION CLIM $ZZCIP.clim-name

If the CLIM is not in the STARTED state, you can use the CLIMCMD command with the Linux cat

subcommand by entering:

TACL>climcmd clim-name cat /etc/vproc

Multiple versions of CLIM software are allowed on a system as long as all CLIMs have CLIM SPRs

that are compatible with the host RVU. See the NonStop CLuster I/O Module (CLIM) Compatibility

Reference for all CLIM and host RVU compatibility information.

See the Cluster I/O Protocols (CIP) Configuration and Management Manual for troubleshooting

tips about identifying an incompatibility in CLIM and host CIP software.

H06.17

CLuster I/O Module (CLIM) Software Compatibility

For H06.17 and subsequent J-series RVUs, CLIM software associated with the RVU is compatible

with the current RVU and all preceding RVUs (H06.17 and above). See the NonStop CLuster I/O

Module (CLIM) Compatibility Reference for all CLIM and host RVU compatibility information.

NOTE: The NonStop host RVU is not compatible with every CLIM version. The CLIM must be at

the NonStop host RVU version or above. Therefore, when you upgrade your NonStop host RVU,

you must also update your CLIM to the software level associated with the RVU to which you are

upgrading.

If you are migrating from a H06.17 or later RVU, you can perform an online upgrade to the CLIMs

before upgrading the host system.