10. RAID1
10-1
CHAPTER 10 RAID1
10.1 What is RAID1
This chapter describes how to manage the RAID1 feature of the D model.
In this chapter, "this equipment" denotes the D model. Note that only HDDs (hard disk drives)
are used as a drive for this equipment.
The screen images shown in this chapter are the ones for Windows
®
10, but the displayed
contents are basically the same for other OS.
NOTICE
Although this Equipment featuring RAID1 is more reliable than general
systems, it is still prone to the loss of data in the HDDs. Not only a machine
failure but also an unexpected power failure or an operation error may cause
data to be lost for good. To prevent such loss of data, implement scheduled
data backup in daily operation. Also, protect the power source from
undesirable interruptions by such means as UPS.
This Equipment is evaluated based on the specific HDD models authorized by
the Manufacturer. Replace only with specific HDD models authorized by the
Manufacturer. Otherwise, the existing data in the HDD may be lost. Also,
always observe the recommended replacement interval for HDDs (Refer to
“APPENDIX HANDLING REPLACEABLE COMPONENTS”).
When HDD1 and HDD2 are installed, their capacities must be the same. Do
not install HDDs with different capacity.
As a replacement HDD, do not use an HDD previously used in the A model or
the D model. If you do, this equipment may not operate properly or the data on
the HDDs may be lost because of configuration information mismatches or
other reasons.
Since each Equipment has its own RAID1 configuration information (e.g., serial
number), you cannot swap HDDs even between two units of this Equipment. If
you dare, the stored data in the newly installed HDD will be erased with
automatic RAID1 rebuilding process due to inconsistency of the RAID1
configuration information. If you own multiple units of this Equipment, manage
use and inventory of HDDs so that they are not inadvertently mixed.
● Maintenance of a RAID1 system requires a high level of expertise. Should any
mistakes be made during the work, the data stored on the HDDs may be lost.
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