SYS$DEVICES.DAT

[Clark Powell]

Where is the documentation on using this file?

[Uwe Zessin · Accepted solution]

This file is maintained by several utilities (SYSBOOT>, SYSMAN, CLUSTER_CONFIG.COM), but I don't recall I have seen a full documentation about it's contents - I hope Ian can help ;-)

If you are interested in setting up port allocation classes - the format is so simple that you can even edit the file (leave of the '='s in the first column):
=[Port ATHENA$PKA]
=allocation class = 11

To make VMS recognize this, set "DEVICE_NAMING=1" in MODPARAMS.DAT, run AUTOGEN and reboot.

All disks on this bus will be named $11$DKAu: and all tapes $11$MKAu:.

[Ian Miller.]

http://h71000.www7.hp.com/doc/73final/6318/6318pro_012.html
is quite detailed. CLUSTER_CONFIG.COM is used there to update sys$devices.dat - I usually use EDT myself :-)

Also mentioned in
http://h71000.www7.hp.com/DOC/732FINAL/6048/6048pro_006.html
where SYSMAN adds to it.