9 Using specialized managers
The SAN/iQ software provides two specialized managers that are used in specific situations. The
Failover Manager is used in two-system and in Multi-Site SAN configurations to support automatic
quorum management in the SAN. A virtual manager is added to a management group but is not
started on a storage system until a failure in the system causes a loss of quorum. It is designed to be
used in two-system or two-site configurations which are at risk for a loss of quorum.
Definitions
Terms used in this chapter:
•
Virtual manager
—A manager which is added to a management group but is not started on a
storage system until a failure in the system causes a loss of quorum. The virtual manager is designed
to be used in specific system configurations which are at risk of a loss of quorum.
•
Failover Manager
—A specialized manager running as a VMware guest operating system that can
act as a quorum tie-breaker system when installed into a third location in the network to provide
for automated failover/failback of the Multi-Site SAN clusters.
•
Regular manager
—A manager which is started on a storage system and operates according to
the description of managers found in “
Managers overview
” on page 149.
•
Manager
—any of these managers.
Failover Manager overview
The Failover Manager is a specialized version of the SAN/iQ software designed to run as a virtual
appliance in a VMware environment. The Failover Manager participates in the management group
as a real manager in the system; however, it does quorum operations only, not data movement
operations. It is especially useful in a Multi-Site SAN configuration to manage quorum for the multi-site
configuration without requiring additional physical hardware in a site.
Failover Manager requirements
•
Static IP address, or a reserved IP address if using DHCP.
•
Bridged connection through the VMware Console, or assigned network in VI Client.
•
Server on which to install the Failover Manager.
•
Only one Failover Manager per management group.
•
Only a virtual manager or a Failover Manager in the same management group, not both.
•
Failover Manager not inside a virtual Windows machine with VMware Server running.
Minimum system requirements for using with VMware ESX Server
•
VMware ESX Server version 3.x
•
1024 MB of RAM
P4000 SAN Solution user guide
165
Summary of Contents for StorageWorks P4000 Series
Page 24: ...24 ...
Page 38: ...Getting started 38 ...
Page 52: ...Working with storage systems 52 ...
Page 78: ...Storage Configuration Disk RAID and Disk Management 78 ...
Page 110: ...Managing the network 110 ...
Page 120: ...Administrative users and groups 120 ...
Page 232: ...Using snapshots 232 ...
Page 256: ...Working with scripting 256 ...
Page 268: ...Controlling server access to volumes 268 ...
Page 298: ...Registering advanced features 298 ...
Page 322: ...Replacing disks reference 322 ...
Page 324: ...Third party licenses 324 ...