Installation and Reference Guide for HP MPIO Full Featured DSM for MSA1000/1500 (Active-Active) Disk Arrays 3.00.00 (AA-RW8AD-TE, March 2008)

A Software c omponents
This appendix describes the HP MPIO MSA DSM software components, including:
•Drivers
• User mode components
Drivers
The HP MPIO MSA DSM software components include the following multipath drivers:
• Microsoft Fr
amework Drivers
• MPIO.SYS is the Multipathing bus driver.
• MPDEV.SYS is the replacement class driver. It communicates with MPIO.SYS.
• MPSPFLTR.SY
S is a port driver filter (HBA upper filter).
• HP D evice SpecificModule(DSM)driver
• HPMAADSM.SYS is the HP DSM driver for MSA disk arrays. It interacts with MPIO.SYS to
provide dev
ice-specificfunctions.
HP recommends that you do not remove, delete, or disable these drivers while multipath hardware is
attached to your sy stem.
User mode components
The user mode components includes: -
•HPMPIODSMmanagerGUI
• HP MPIO MSA DSM command line interface
• HP MPIO MSA DSM performance monitoring provider
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 d evice failure events. The HP MPIO DSM M anager is provided as
a separate installation package. HP MPIO DSM Manager contains files described in Table 4:
NOTE:
To manag
e HP MPIO EVA DSM 3.00.00 and later, use HP MPIO DSM manager 3.00.00 or later.
Table 4 HP MPIO DSM manager GUI files
File
Description
SecurePathMgr.dll
This is the Microsoft Management Console snap-in DLL used
to manage the HP DSMs.
VolInfoDLL.dll
Gathers information about the drive letter, mount points, and
volume labels from the system.
SpWmiInfo.dll
Handles the communication with the HP DSMs using WMI
interfaces.
HP MPIO Full Featured DSM for MSA1000/1500 (Active-Active) Disk Arrays 3.00.00
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