HP Integrity Virtual Machines 4.3: Installation, Configuration, Administration
$! Format and print a UUID
$uuid = f$getsyi("system_uuid")
$len=f$len(uuid)
$if (len .eq. 32)
$then
$ part1 = f$fao("!AS",f$ext(24,8,uuid))
$ part2 = f$fao("!AS",f$ext(20,4,uuid))
$ part3 = f$fao("!AS",f$ext(16,4,uuid))
$ part4 = f$fao("!AS!AS",f$ext(14,2,uuid),f$ext(12,2,uuid))
$ part5 = f$fao("!AS!AS!AS!AS!AS!AS", -
f$ext(10,2,uuid),f$ext(8,2,uuid), -
f$ext(6,2,uuid),f$ext(4,2,uuid), -
f$ext(2,2,uuid),f$ext(0,2,uuid))
$ pr_uuid = f$edit("''part1'-''part2'-''part3'-''part4'-''part5'", -
"lowercase")
$
$ write sys$output "SYSTEM_UUID=''pr_uuid'"
5.6 OpenVMS Guest Notes
The following notes apply to OpenVMS guests using Integrity VM V4.3:
• Packaging OpenVMS guests as Serviceguard packages is not supported.
• OpenVMS does not support checksum offloading. Turning on CKO on the physical device
will cause failure of communications in the following scenarios:
— VM Host to OpenVMS guest and OpenVMS guest to VM Host
— OpenVMS guest to a non-OpenVMS guest on the same VM Host
To workaround this problem, turn off the Checksum offloading in the VM Host interface
driver and restart the associated virtual switch. For example:
— Turn off the CKO on PPA 4 by entering this command on the VM Host:
# nwmgr -s -A tx_cko=off –c lan4
— Restart the virtual switch by entering this command on the VM Host:
# hpvmnet -r -S switch1
5.6 OpenVMS Guest Notes 81