Operating Limits
A-5
Technical Specifications
Operating Limits
The ambient temperature specification is measured at the front bezel
inlet. The site must have air conditioning of the correct size and
placement to maintain the specified ambient temperature range. The
air conditioning must be able to handle the heat dissipation
requirements of the disk enclosures.
The operating limits for temperature and humidity must not be exceeded
inside the closed cabinet in which the
DAE2
s are mounted. Mounting
equipment in a cabinet directly above or below a
DAE2
does not restrict air
flow to the disk enclosure, because air flows through the enclosure from front
to back. Cabinet doors must not impede the front-to-back air flow.
Environmental Recovery
If the system exceeds maximum ambient temperature by
approximately 10°C/18°F, the storage processors will begin an
orderly shutdown that saves cached data, shuts off the SPs, and — in
a DPE2 enclosure — powers down the disks. LCCs in each DAE2 will
power down their disks but remain powered on. If the system detects
that the temperature has dropped to an acceptable level, it restores
power to the storage processors (which power up any disks in their
enclosure), and the LCCs restore power to their disk drives.
Requirement
Description
Ambient temperature
10
o
C to 40
o
C (50
o
F to 104
o
F)
Temperature gradient
10
o
C/hr (18
o
F/hr)
Relative humidity
20% to 80% noncondensing
Elevation
2438 m (8,000 ft) at 40
o
C, 3077 m (10,000 ft) at 37
o
C
Summary of Contents for CLARiiON DAE2
Page 4: ...2 Gigabit Disk Array Enclosure DAE2 Hardware Reference iv ...
Page 24: ...1 10 2 Gigabit Disk Array Enclosure DAE2 Hardware Reference About DAE2 Disk Enclosures ...
Page 38: ...2 14 2 Gigabit Disk Array Enclosure DAE2 Hardware Reference Installing a DAE2 ...
Page 74: ...B 8 2 Gigabit Disk Array Enclosure DAE2 Hardware Reference Customer Support ...
Page 78: ...2 Gigabit Disk Array Enclosure DAE2 Hardware Reference i 4 Index ...