HP OpenVMS Systems

Ask the Wizard
» 

HP OpenVMS Systems

OpenVMS information
» What's new on our site
» Upcoming events
» Configuration and buying assistance
» Send us your comments

HP OpenVMS systems
» OpenVMS software
» Supported Servers
» OpenVMS virtualization
» OpenVMS solutions and partners
» OpenVMS success stories
» OpenVMS service and support
» OpenVMS resources and information
» OpenVMS documentation
» Education and training

Quick Links
» Non-javascript page
» Ask the Wizard
» OpenVMS FAQ

Test Drive OpenVMS
» OpenVMS I64 test drive
» Java test drive

Other information resources available to you include:
» OpenVMS freeware
» ECO kits, software and hardware support, prior version support
» Alpha SRM, ARC, and AlphaBIOS firmware updates
» ENCOMPASS - HP user group
» OpenVMS software downloads, OpenVMS freeware CD-ROM
» OpenVMS firmware locations
» DECconnect passive adaptor charts
» Cables reference guide
» MicroVAX console commands
» OpenVMS student research

Select a topic below to see Questions Frequently Asked by partners
» Using the online documentation library(installing BNU from the asap SDK)
» Global sections(how to create and use.)
» xx$CREATE_BUFOBJ system service(usage)
» Ethernet address(methods of determination)
» Shareable images(cookbook approach to creating one)
» Sharing data/code at absolute addresses(a guide with examples)
» Determining the Alpha microprocessor
» Using GETSYI to get hardware status

Evolving business value
» Business Systems Evolution
» AlphaServer systems transition planning
» Alpha RetainTrust program

Related links
» HP Integrity servers
» HP Alpha systems
» HP storage
» HP software
» HP products and services
» HP solutions
» HP support
disaster proof
HP Integrity server animation
HP Integrity server animation
Content starts here

Ask the Wizard Questions

SCSI device and allocation classes

The Question is: 

In a cluster where disks are served by 2 systems,
each with an alloclass not null, and one of the systems
boots on a SCSI device, each system has 1 SCSI bus,
how is it possible to mscp serve the disks without
a warning message in the boot, since mscp_serve_all
must be set on the system that boots from a SCSI device
and both systems have a -different- dka400, the CDROM
device. The system thats boots ftom the scsi device cannot
serve its boot device without serving the cdrom.

The Answer is: 

You must change the SCSI id of one of the CDroms.  When you have 2 systems
with the same ALLOCLASS you need to make sure that you do not have the same
physical device names connected to non-shared busses.