Spectra Logic Spectra nTier700, Руководство по установке

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Appendix C – Specifications
This appendix provides specifications for the Spectra nTier700 VTL.
ƒ
Storage Capacity , below
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Integrated VTL server
on page 100
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Size and Weight on page 101
ƒ
Power Specifications
ƒ
Environmental Specifications
Note:
The specifications in this chapter are subject to change without
notice.
Storage Capacity
The nTier700 VTL provides flexible RAID 6 storage capacity that expands from a
minimum of 10 drives in a single blade up to the maximum 40 drives in four blades.
RAID Specifications
The following table shows the RAID characteristics of the nTier700 VTL.
Parameter Specification
RAID level RAID 6
Capacity Options
a
ƒ
One blade
b
ƒ
Two blades
b
ƒ
Three blades
b
a. The native capacity numbers refer to raw disk capacity; RAID configuration and system overhead reduce the actual usable
space; the usable capacity numbers are approximate.
b. Each blade contains ten 1 TB 7200 RPM SATA drives.
10 TB native, 8 TB usable
20 TB native, 16 TB usable
30 TB native, 24 TB useable
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RAID controller write cache size
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Write cache memory battery backup time
256 MB
Up to 72 hours with fully-charged battery