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Software Configuration
This chapter provides a brief introduction to the ExtremeZ SAN system's software, and to its
installation and configuration.
SANergy Software
The ExtremeZ SAN system uses Mercury Computer Systems' SANergy software. SANergy
manages the data on the shared storage devices. SANergy is a SAN redirector an operating
system extension that redirects file input/output (I/O) operations over the SAN directly to the
shared storage devices. This works much like a LAN redirector, which channels I/O operations to
a server. In effect, SANergy is a distributed SAN operating system that coordinates concurrent file
sharing among multiple systems, without the expense of file servers that limit I/O performance.
SANergy fully supports standard Windows NT user interface, management, access control, and
security features. Most existing applications work with SANergy without modification. This
includes administration and operation tools, backup applications, and storage management
applications. There is no additional interface to learn, because SANergy is a part of the Windows
NT environment. With SANergy, users on ExtremeZ SAN System client systems can read and
write to shared volumes, folders, or files simultaneously, have immediate access to data, and use
standard Windows NT file and network management tools.
SANergy software is installed on all client systems in a shared storage network. One of these
clients can double as the SANergy server, or can be designated to work solely as the SANergy
server. The server controls access to and integrity of the shared data for the rest of the clients. It
also controls access to the shared data by other systems on the LAN.
For a more detailed description of the SANergy software, refer to the SANergy documents
delivered with the Shared Storage system.
Software Configuration Rules
A Shared Storage system installation must follow these software configuration rules:
Client systems must have 16 MB of memory in addition to memory required by other software
on the systems.
Client systems must have 20 MB of free disk space.
Client systems must be running Windows NT 4.0 with Service Pack 3 or later installed.
Client systems must be connected to the same TCP/IP-based LAN.
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