Technical data

System Management Release Notes

5.9 OpenVMS Cluster Systems

5.9.24 SHOW DEVICE Might Fail in Large Fibre Channel Conﬁgurations

V7.2-1

The problem of SHOW DEVICE failing in large Fibre Channel conﬁgurations has

been corrected in the following versions:

• OpenVMS Alpha Version 7.2-1 with the remedial kit DEC-AXPVMS-VMS721_

UPDATE-V0100-4.PCSI

• OpenVMS Alpha Version 7.2-1H1

• OpenVMS Alpha Version 7.3

Before the correction, SHOW DEVICE might fail with a

virtual address space

full

error on systems with more than 2400 unit control blocks (UCBs). In

multipath SCSI and FC conﬁgurations, there is a UCB for each path from the

host to every storage device.

Note that any procedure that calls SHOW DEVICE, such as CLUSTER_CONFIG,

can also experience this problem.

5.9.25 Boot Failure with the KGPSA Loopback Connector Installed

V7.2-1

The problem of boot failure with the KGPSA loopback connector has been

corrected in the following versions:

• OpenVMS Version 7.2-1 systems with the current FIBRE_SCSI update kit for

OpenVMS Alpha Version 7.2-1 installed

• OpenVMS Alpha Version 7.2-1H1

• OpenVMS Alpha Version 7.3

Before the correction, the system failed to boot if there was a KGPSA in the

system with a loopback connector installed. The loopback connector is the black

plastic protective cover over the GLMs/ﬁber-optic ports of the KGPSA.

If possible, install OpenVMS Alpha Version 7.2-1 and the current FIBRE_SCSI

update kit for OpenVMS Alpha Version 7.2-1 kit before installing the KGPSA in

your system.

If the KGPSA is installed on your system and the current FIBRE_SCSI update

kit for OpenVMS Alpha Version 7.2-1 is not installed, you can connect the KGPSA

to your Fibre Channel storage subsystem and then boot OpenVMS.

If you are not ready to connect the KGPSA to your Fibre Channel storage

subsystem, you can do either of the following:

• Remove the loopback connector but leave the KGPSA in the Alpha system,

then boot OpenVMS. Do not replace the loopback connector after you boot

OpenVMS.

• Remove the KGPSA from the Alpha system, then boot OpenVMS.

If you attempt to boot OpenVMS when a KGPSA is installed with the loopback

connector still attached, the system hangs early in the boot process, at the point

when it should conﬁgure the Fibre Channel adapters.

5–24 System Management Release Notes