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HP P2000 G3 SAS MSA System User Guide 37
4 Connecting hosts
Host system requirements
Data hosts connected to P2000 G3 MSA System arrays must meet the following requirements:
• Depending on your system configuration, data host operating systems may require that multi-pathing is
supported.
TIP: See the HP MSA System VDS and VSS Hardware Providers Installation Guide and HP MSA
System MPIO DSM Installation Guide to aid in planning and implementing your MPIO DSM
installation.
If fault tolerance is required, then multi-pathing software may be required. Host-based multi-path
software should be used in any configuration where two logical paths between the host and any
storage volume may exist at the same time. This would include most configurations where there are
multiple connections to the host or multiple connections between a switch and the storage.
• Use Windows Server MPIO DSM with Windows Server 2003. To obtain the MPIO DSM, go to the
HP MSA products page at http://www.hp.com/go/msa
. Select your product and go to Related
Products.
• Use native Microsoft MPIO DSM support with Windows Server 2008. Use either the Server
Manager or the command-line interface (mpclaim CLI tool) to perform the installation. Refer to the
following web sites for information about using the Windows 2008 native MPIO DSM:
http://support.microsoft.com/gp/assistsupport
http://technet.microsoft.com (search the site for “multipath I/O overview”)
• Use the HP Multi-path Device Mapper for Linux Software with Linux servers. To download the
appropriate device mapper multi-path enablement kit for your specific enterprise Linux operating
system, go to http://www.hp.com/go/devicemapper
.
• To prevent Microsoft Windows 2003 data hosts from displaying the Found New Hardware Wizard
when the storage system is discovered, install the SCSI Enclosure Services driver. Download your
product’s SCSI Enclosure Services (SES) driver package from h
ttp://www.hp.com/go/msa. Select your
product and go to Related Products.
NOTE: P2000 Family SCSI Enclosure Services driver is required for Microsoft Windows 2003.
Connecting the enclosure to data hosts
A host identifies an external port to which the storage system is attached. Cable connections vary
depending on configuration. Common cable configurations are shown in this section. A list of supported
configurations resides on the P2000 G3 product site at http://www.hp.com/go/p2000
. Select HP
Support & Drivers, select your product, select Manuals:
•
HP P2000G3MSA Systems Installation Instructions
• HP P2000G3MSA System Cable Configuration Guide
These documents provide installation details and describe newly-supported direct connect, switch-connect,
and expansion configuration options for P2000 G3 MSA System products.
Any number or combination of LUNs can be shared among a maximum of 64 host ports, provided the total
does not exceed 512 LUNs per P2000 G3 storage system (single or dual controller configuration).
SAS host ports
The P2000 G3 SAS MSA System controller modules use the Serial Attached SCSI (Small Computer System
Interface) interface protocol for host port connection, featuring either one or two controller modules. Each
controller module provides two dual SFF-8088 mini-SAS host ports supporting data rates up to