Dynamic Multi-Pathing 8.0.1 Administrator's Guide - Windows

Last Published:
Product(s): InfoScale & Storage Foundation (8.0.1)
Platform: Windows
  1. Understanding DMPW
    1.  
      DMP overview
    2.  
      Major features of Dynamic Multi-Pathing
    3. How DMP works
      1. How DMP monitors I/O on paths
        1.  
          Path failover mechanism
      2.  
        Load balancing
      3.  
        DMP in a clustered environment
    4.  
      Multiple paths to disk arrays
    5.  
      Device discovery
  2. Setting up DMPW
    1.  
      Active/Active and Active/Passive settings
    2. Active/Active and Active/Passive settings in a cluster environment
      1.  
        DMP DSMs
      2.  
        SCSI-3 PGR technology
      3.  
        Enabling SCSI-3 PGR
    3. Add and remove paths
      1.  
        Adding a path
      2.  
        Removing a path
    4. Specify load balancing settings and the primary path
      1.  
        Specifying load balancing settings for an array
      2.  
        Specifying load balancing settings for a disk
      3.  
        Specifying the primary path for an array or disk
    5. Configuring DSMs without storage connection
      1.  
        Specify DSM settings without storage connection
  3. Administering DMPW
    1.  
      About administering DMP
    2. DMP DSMs menus
      1.  
        Displaying the menu for arrays
      2.  
        Commands for arrays
      3.  
        Displaying the menu for disks
      4.  
        Commands for paths of a disk
      5.  
        Statistics monitoring
      6.  
        Clear performance statistics
      7.  
        Device settings
      8.  
        Set primary path
      9.  
        Properties
    3. View array, disk, and path status
      1.  
        Array status
      2.  
        Device status
      3.  
        Path status
    4. vxdmpadm
      1.  
        vxdmpadm dsminfo
      2.  
        vxdmpadm arrayinfo
      3.  
        vxdmpadm deviceinfo
      4.  
        vxdmpadm pathinfo
      5.  
        vxdmpadm arrayperf
      6.  
        vxdmpadm deviceperf
      7.  
        vxdmpadm pathperf
      8.  
        vxdmpadm allperf
      9.  
        vxdmpadm iostat
      10.  
        vxdmpadm cleardeviceperf
      11.  
        vxdmpadm cleararrayperf
      12.  
        vxdmpadm clearallperf
      13.  
        vxdmpadm setdsmscsi3
      14.  
        vxdmpadm setarrayscsi3
      15.  
        vxdmpadm setattr dsm
      16.  
        vxdmpadm setattr array
      17.  
        vxdmpadm setattr device
      18.  
        vxdmpadm setattr path
      19.  
        vxdmpadm set isislog
      20.  
        vxdmpadm rescan
      21.  
        vxdmpadm disk list
      22.  
        vxdmpadm getdsmattrib
      23.  
        vxdmpadm getmpioparam
      24.  
        vxdmpadm setmpioparam
  4. Performance tuning
    1.  
      Specifying control timer settings for an array
  5. Troubleshooting
    1. Resolving DMP issues
      1.  
        When a DMP license is no longer valid
      2.  
        When an unknown disk group appears in a DMP environment
    2. Using status information
      1.  
        Path status
      2.  
        Path states
  6. Glossary
    1.  
      Dynamic Multi-Pathing glossary

vxdmpadm

The vxdmpadm utility provides commands for Dynamic Multi-Pathing (DMP DSMs).

dsminfo

Displays the information about the DSM.

arrayinfo

Displays the information about an array.

deviceinfo

Displays the information about a device (that is, a hard disk in an array).

pathinfo

Provides the information about a path.

arrayperf

Displays the performance statistics about an array.

deviceperf

Displays the performance statistics about a device.

pathperf

Displays the performance statistics about the paths that are connected to a device.

allperf

Displays the performance statistics for all paths for all devices.

iostat

Displays the I/O statistics for a single disk, all disks in an array, or all the disks of all the arrays in the host.

cleardeviceperf

Resets the performance I/O statistics of a device.

cleararrayperf

Resets the performance I/O statistics of an array that contains the specified disk.

clearallperf

Resets the performance I/O statistics of all arrays under the control of the DMP DSMs that the specified disk belongs to.

setdsmscsi3

Enables or disables SCSI3 support for the DMP DSMs that control the specified disk. On Windows Server operating systems, can enable or disable SCSI3 support for Veritas DSMs that are installed but with storage not yet connected.

setarrayscsi3

Enables or disables SCSI3 support in the registry of the array that contains the specified disk.

setattr dsm

Sets DSM attributes.

setattr array

Sets the array attributes.

setattr device

Sets the device attributes.

setattr path

Sets the path attributes.

set isislog

Alters the trace level of the VEA/ISIS log dynamically.

rescan

Rescans all the storage system objects on the computer.

disk list

Lists the details of all the disks on the managed server.

getdsmattrib

Displays the information for installed Veritas DSMs with no storage connection.

getmpioparam

Displays MPIO parameters for installed Veritas DSMs

setmpioparam

Sets MPIO parameters for installed Veritas DSMs

A full explanation of the DMP DSMs software and commands is available.

Each keyword is followed by the volume name or drive letter. Typing the following sequence for each keyword brings up a description of its syntax:

vxdmpadm<Keyword> -?

More Information

DMP overview