Devices Managed By Hdlm; System Configuration - Hitachi XP P9500 User Manual

Devices Managed by HDLM

Below is a list of devices that can or cannot be managed by HDLM. The
devices that can be managed by HDLM are called HDLM management-target
devices.
HDLM management-target devices:
The following devices are from the storage systems listed in Section
is HDLM? on page
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Non-HDLM management-target devices:
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System Configuration

HDLM manages routes between a host and a storage system by using the
SCSI driver. The host and storage systems are connected using SAN with
fiber cables. The cable port on the host is called a host bus adapter (HBA).
The cable port on the storage system is called a port (P) on a channel adapter
(CHA).
A logical unit (LU), which lies in a storage system, is either an input target or
an output target to or from a host. The areas within an LU are called Devs. A
route that connects a host to a Dev in an LU is called a path.
HDLM assigns a unique ID to each management-target path. This ID is called
AutoPATH_ID. Sometimes, the path is also just simply called a management
target.
Figure 2-1 HDLM System Configuration on page 2-3
system configuration.
2-2
1-2:
SCSI devices
Hitachi storage system command devices, such as Hitachi RAID
Manager command devices
SCSI devices other than those that are in the storage systems listed
in Section What is HDLM? on page 1-2
Built-in disks on a host
Non-disk devices (tape devices, etc.)
HDLM Functions
Hitachi Dynamic Link Manager User Guide (for VMware(R))
What
shows the HDLM