Sun Microsystems StorEdge 3510 User Manual

Chapter 6 First-Time Configuration 6-15
6.1.8.1 Sun StorEdge 3510 FC Array Default Configurations
For a 12-drive array, the RAID array is preconfigured as follows:
■ Two RAID 5 logical drives, consisting of five physical drives each
■ Two global spares
For a 5-drive array, the RAID array is preconfigured as follows:
■ One RAID 5 logical drive, consisting of four physical drives
■ One global spare
6.1.8.2 Sun StorEdge 3511 FC Array Default Configurations
For a 12-drive array, the RAID array is preconfigured as follows:
■ Two NRAID logical drives consisting of one physical drive each
■ No global spares
For a 5-drive array, the RAID array is preconfigured as follows:
■ One NRAID logical drive consisting of one physical drive
■ No global spares
NRAID is a collection of physical disk members into a logical drive, allowing the
firmware application, Sun StorEdge Configuration Service or the Sun StorEdge CLI
to connect in-band. Once connected, these applications can be used to set the system
IP address and create the initial RAID configuration.
Caution – NRAID is not a redundant RAID option. If a disk fails in an NRAID
configuration, all data will be lost.
The following table highlights the RAID levels available.
TABLE 6-6 RAID Level Definitions
RAID Level Description
NRAID NRAID stands for Non-RAID. It is only used as a default configuration for
the Sun StorEdge 3511 FC array. NRAID does not provide data redundancy
and is not recommended.
RAID 0 Striping without data redundancy; provides maximum performance.
RAID 1 Mirrored or duplexed disks. For each disk in the system, a duplicate disk is
maintained for data redundancy. RAID 1 requires 50% of total disk capacity
for overhead.
RAID 3 Striping with dedicated parity. One drive is dedicated to parity. Data is
divided into blocks and striped across the remaining drives.

Sun Microsystems StorEdge 3510 Specifications

General

Brand	Sun Microsystems
Model	StorEdge 3510
Category	Storage
Language	English