Chapter 1 Overview of NEC Storage PathManager
This service offers a log extract function that writes log information related to NEC Storage
PathManager in the event log. From internal information of NEC Storage PathManager, it writes
important information in the event log.
PathManager
Application
File system
Port/miniPort
driver
HBA HBA HBA
I/O request
…
…
Path patrol service
(iSpmWatcher)
Log service
(iSpmLogger)
Event log
(spscmd)
HP HP HP
…
…
Server
iStorage
NEC Storage
PathManager
driver
NEC Storage
command
Operation
Figure 1-1 Configuration of NEC Storage PathManager
1.3 System configuration
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A basic configuration example of a system to which NEC Storage PathManager is installed will be
illustrated below.
1.
.3.1 S
Single-server configuration
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In this configuration, a server and NEC Storage are directly connected. The system is relatively small, and
the configuration is the most common.
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