HP MPIO Full Featured DSM for EVA4x00/6x00/8x00 family of Disk Arrays 4.01.00 installation and reference guide (AA-RW7SP-TE, September 2010)

A Software components
This appendix describes the following components of HP MPIO EVA DSM:
• Drivers
• User mode components
Drivers
The HP MPIO EVA DSM components include the following multipath drivers:
• Microsoft MPIO Framework Drivers
• MPIO.SYS is the multipathing bus driver.
• MPDEV.SYS is the replacement class driver. It communicates with MPIO.SYS.
• MPSPFLTR.SYS is a port driver filter (HBA upper filter).
• HP DSM driver
• HPEAADSM.SYS is the HP DSM driver for EVA disk arrays. It interacts with MPIO.SYS to
provide device-specific functions.
HP recommends that you do not remove, delete, or disable these drivers while multipath hardware is
attached to your system.
User mode components
The user mode components include:
• HP MPIO DSM manager GUI
• HP MPIO EVA DSM command line interface (CLI)
• HP MPIO EVA DSM performance monitoring provider
• HP MPIO EVA DSM persistent reservations clear utility
HP MPIO DSM manager GUI
The HP MPIO DSM manager GUI monitors and manages the HP DSMs. It also enables administrator
to receive e-mail notifications on path or device failure events. The HP MPIO DSM Manager is provided
as a separate installation package.
NOTE:
To manage HP MPIO EVA DSM 4.01.00 and later, use HP MPIO DSM Manager 4.01.01 or later.
HP MPIO Full Featured DSM for EVA4x00/6x00/8x00 family of Disk Arrays 4.01.00 installation
and reference guide 37