Quickspecs, Hp storageworks 1500 cs modular smart array – HP 1500 cs User Manual

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http://www.hp.com/go/MSA1500cs

HP StorageWorks Secure

HP StorageWorks Secure
Path

Path

HP StorageWorks Secure Path is a family of high availability multi-pathing software products providing
continuous data access from the HP RAID Array to host servers running the Windows Server 2003,
Windows 2000, and Linux operating systems.
Redundant hardware, advanced RAID technology and Secure Path's automated failover capability are
used to enhance fault tolerance and availability. Secure Path effectively eliminates controllers, disk drives,
interconnect hardware and host bus adapters as single points of failure in the storage subsystem.
The attachment of non-Secure Path (single HBA) servers to a MSA1500 cs with dual controllers that has
servers with Secure Path (dual HBA) attached is supported where the operating system is Windows or
Netware. Users must realize that in event of a controller fail-over (failure of active controller) the single
path servers will lose access to their data on the MSA1500 cs.

NOTE:

NOTE: If Secure Path for Linux is used on any node attached to an MSA1500 cs, all nodes must also
have Secure Path installed, regardless of operating systems.
NOTE:

NOTE:

NOTE: refer to

http://www.hp.com/go/securepath

for the latest Secure Path parameters.

Key Features

Maintains connections to storage
Monitors I/O paths and alerts on significant events
Used in Stand alone Configurations, Cluster Configurations, and SAN
configurations

MSA1500 Clustering

Clustering is rapidly gaining in popularity as users desire a high level of data availability. Many of the old
cluster restrictions that were the product of both hardware and operating systems have been overcome.
While there still remain configuration limits, the result is a new high degree of flexibility both in number of
clusters, mixing clusters with single nodes, and the integration of dissimilar operating systems. Initially
Windows, HP-UX and Linux clusters can be attached to an MSA1500 having both SCSI and SATA drives,
while NetWare clusters currently only support SCSI drives. This is only a restriction in a NetWare clustered
environment.

For example you may mix three Microsoft (Windows Server 2003, or Windows 2000) clusters and other
individual servers, even doing so in a heterogeneous server operating system environment. Windows
Server 2003 allows a single cluster of up to eight nodes.

Single-path (single controller, non-Secure Path) NetWare clustering has been successfully tested up to a
12-node cluster. NetWare clusters employing Secure Path (dual controller, dual HBAs) are limited to six
nodes. Multiple NetWare clusters (and single servers) may have concurrent access with no limitation
inherent to the MSA1500 cs. Likewise up to a 16-node Linux cluster (single controller, non-Secure Path)
utilizing SteelEye LifeKeeper for Linux clustering software has been tested and is supported. Refer to

http://www.hp.com/go/securepath

for any restriction with Secure Path.

The MSA1500 cs has the ability to be configured with thirty-two LUNs. A configuration of twenty attached
servers has been tested and is supported. More commonly, users have had an average of four to eight
nodes. This can be any combination of hosts or clusters with different operating systems (while holding
fast to the guidelines and limits described in the above paragraphs. Performance within these guidelines
is heavily dependent on the actual number of end users and types of applications being employed.

For more information, click on the link:

http://www.hp.com/enterprise/highavailability/index.html

QuickSpecs

HP StorageWorks 1500 cs Modular Smart Array

Compatibility

DA - 11945 Worldwide — Version 10 — September 26, 2005

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