HP X3800sb Serial Attached SCSI technology, 3rd edition - Page 15

Zoning advantages in an HP environment In an HP ProLiant environment, the HP Virtual SAS Manager (VSM) configures and manages device zoning. The VSM simplifies the process of performing zoning operations and managing the connected blade systems and storage devices. The VSM assigns zone groups to all zoning expander PHYs, and it assigns all PHYs in a wide port to the same zone group. The VSM stores the zoning assignment of each expander PHY along with SAS addresses in the zoning expander's routing table. Inside a particular ZPSDS, the VSM assigns each zoning expander PHY attached to another zoning expander PHY to zone group 1. PHYs in zone group 1 have access to PHYs in all zone groups. If an expander PHY connects to an end device outside the zone group, the VSM designates it as "not trusted." VSM defines the "not trusted" expander as a ZPSDS boundary and assigns each expander PHY on the boundary to a zone group other than group 1. Select HP BL switches and HP VSM deliver zoned shared storage and zoned direct attach storage solutions. These scalable enterprise-level HP zoning solutions offer the following advantages: • The HP 3G SAS BL Switch and HP 6G SAS BL Switch contain an advanced daughter card module that runs the VSM software. • VSM provides both a browser-based GUI that can run on any OS and a CLI accessible through Secure Shell (SSH) protocol • Single sign-on from the Onboard Administrator web interface negates the need to maintain separate user accounts • Advanced storage enclosure management functions include firmware update • Support for online switch replacement when implemented in redundant configurations. • SNMP support for management reporting • Increase datacenter productivity with capture and deploy CLI commands that replicate storage configurations to new racks • Easily determine whether zone groups are online or offline through GUI and CLI zone group indicators 15