Overview

Using VDM to manage your disk drives

This chapter shows you how VDM (OpenVMS Disk Monitor) can give you greater control over your file system and help you:

    recover wasted disk space
    improve system performance
    pinpoint problem files
    tighten file security

by analyzing your disks.  VDM helps you do your job better and makes your life easier.

VDM helps you analyze disk allocation and file usage on your Alpha AXP and VAX systems.  It detects users who are gobbling up disk space or are near their quota and projects future growth based on observed increases in usage.

VDM can help you:

identify wasted space

locate inactive or expired files

locate wasted space hidden in over-allocated files

locate large files created recently

analyze disk usage by user, UIC, directory, account and owner

pinpoint security problems

locate files with unusual access such as WORLD:READ

list files with a specified ACL

uncover performance problems

locate fragmented files

    locate problem files

locate files needing backup or flagged NOBACKUP

locate files with bad blocks

locate zero-length space

project future demand

by user, UIC or directory

using observed rates of increase

based on actual, average or maximum allocations

generate dozens of precise, informative reports

        based on selection criteria you specify
        sorted on the fields you specify

VDM allows you to generate exception reports which show only the users or files that meet the criteria you specify.

VDM can be run interactively or submitted to batch.  In batch VDM allows simple unattended data collection and analysis.

VDM handles files owned by UICs and identifier.  And, it displays UICs in either numeric or alphanumeric format.

VDM runs on all members of the Alpha AXP and VAX family including VAXCLUSTER systems. It handles multi_drive volume sets as well as HSC disks.

Easy to use
VDM is easy to set up and use.  It comes with a tutorial, on-line HELP, extensive error messages and a comprehensive user guide and reference manual.

Field-proven
VDM is highlighting problems at hundreds of sites in North America.  It's solidly engineered, rigorously tested and fully field-proven by system managers like yourself.

Fully supported
With an annual support agreement, you'll always have someone to call if you have any problems with VDM.  For a single low annual fee, you get unlimited TOLL-FREE telephone support, access to our VDM list-server where you can post questions about how to better use VDM  and free updates as they become available. Our support lines are open Monday to Friday from 8 a.m. to 5 p.m. Mountain Time except holidays.

        Saiga Systems Software
        #215, 801 Sixth Street SW
        Calgary, Alberta   Canada
        T2P 3V8

        (800) 561-8876
        (403) 263-1151 (International)
        (403) 263-0744 (fax)

        WWW:    http://www.saiga.com/
        FTP:        ftp.saiga.com (anonymous ftp supported)
        E-MAIL:    sales@saiga.com
                support@saiga.com

ListServer    vdm@saiga.com