Chapter 1. Preparing to install the system
Before installing the system, you must meet the hardware, software, and environmental requirements
(including a suitable rack cabinet physical location). Learning about the controls, indicators, operator-
information panel, and connectors prepare you for the installation procedures.
The system combines software and hardware into a comprehensive, modular appliance that uses
symmetric virtualization.
Symmetric virtualization is achieved by creating a pool of managed disks (MDisks) from the attached
storage systems and optional SAS expansion enclosures. Volumes can be created in a pool for use by
attached host systems. System administrators can view and access a common pool of storage on the
storage area network (SAN) or local area network (LAN). This functionality helps administrators to use
storage resources more efciently and provides a common base for advanced functions.
Each node is an individual server in a SAN Volume Controller clustered system on which the SAN Volume
Controller software runs.
The nodes are always installed in pairs; a minimum of one pair and a maximum of four pairs of nodes
constitute a system. Each pair of nodes is known as an I/O group.
Applicable machine types and models
The following machine types and models apply to the SAN Volume Controller .
Table 4. Machine types and models
Machine type / model Description Height in rack units
2145-SV1 SAN Volume Controller node 2U
2147-SV1 SAN Volume Controller node with
three-year warranty and
Enterprise Class Support
2U
2145-12F SAN Volume Controller SAS
expansion enclosure with one-
year warranty for up to 12 3.5-
inch SAS drives
2U
2147-12F SAN Volume Controller SAS
expansion enclosure with three-
year warranty and Enterprise
Class Support for up to 12 3.5-
inch SAS drives
2U
2145-24F SAN Volume Controller SAS
expansion enclosure with one-
year warranty for up to 24 2.5-
inch SAS drives
2U
2147-24F SAN Volume Controller SAS
expansion enclosure with three-
year warranty and Enterprise
Class Support for up to 24 2.5-
inch SAS drives
2U
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