Chapter 4 System Configuration; Raid Levels - Fujitsu ETERNUS DX80 S2 Overview
Disk storage system
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Also See for ETERNUS DX80 S2:
- Cli user's manual (756 pages) ,
- User manual (186 pages) ,
- User's manual & installation instructions (147 pages)
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Chapter 4
System Configuration
This chapter explains points to note before configuring a system using the ETERNUS DX Disk storage system.
4.1
RAID Levels
This section explains RAID group configuration and the supported RAID levels and usage (RAID level selection
criteria).
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Supported RAID levels and mechanism
The ETERNUS DX Disk storage system supports the following RAID levels.
•
RAID0 (striping)
•
RAID1 (mirroring)
•
RAID1+0 (striping of pairs of drives for mirroring)
•
RAID5 (striping with distributed parity blocks)
•
RAID5+0 (double striping with distributed parity)
•
RAID6 (striping with distributed double parity blocks)
CAUTION
Do
•
Remember that a RAID0 configuration is not redundant. This means that if a
RAID0 drive fails, the data will not be recoverable.
Therefore, using a RAID1, RAID1+0, RAID5, RAID5+0, or RAID6 configuration is
recommended.
ETERNUS DX80 S2/DX90 S2 Disk storage system Overview
Copyright 2013 FUJITSU LIMITED
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