Introduction 9
Cluster Storage Management Software
Dell PowerVault Modular Disk Storage Manager
The software runs on the management station or any host attached to the
array to centrally manage the PowerVault MD3200i and MD3220i RAID
enclosures. You can use Dell PowerVault Modular Disk Storage Manager
(MDSM) to perform tasks such as creating or managing RAID arrays, binding
virtual disks, and downloading firmware.
MDSM is a graphical user interface (GUI) with wizard-guided tools and a
task-based structure. MDSM is designed to:
• Reduce the complexity of installation, configuration, management, and
performing diagnostic tasks for the storage arrays.
• Contain an event monitoring service that is used to send alerts when a
critical problem with the storage array occurs.
• Provide a command line interface (CLI) to run commands from an
operating system prompt.
Modular Disk Storage Manager Agent
This software resides on each cluster node to collect system-based topology
data that can be managed by the MDSM.
Multipath Software
Multipath I/O software (also referred to as the failover driver) is a software
residing on each cluster node that provides management of the redundant
data path between the system and the RAID enclosure. For the multipath
software to correctly manage a redundant path, the configuration must
provide for redundant NICs and cabling.
The multipath software identifies the existence of multiple paths to a virtual
disk and establishes a preferred path to that disk. If any component in the
preferred path fails, the multipath software automatically re-routes I/O
requests to the alternate path so that the storage array continues to operate
without interruption.
book.book Page 9 Monday, June 21, 2010 1:45 PM
To Next Page
Loading...
