Operating environmental specifications

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The environmental specifications relates to the customer ambient (outside the tape library) environment.

For the ambient measurement, the customer must provide their own temperature and humidity sensors in the location where the library is going to be located. The exception to this is Diamondback and Deep Archive, which include a sensor on the robot.

Table 1 lists the recommended environmental specifications for the tape library when operating and when powered off. Figure 1 is a psychrometric chart showing the allowable and recommended operating environments. Table 1 and Figure 1 applies to LTO drive generations 1 through 10, and all supported 3592 drives.

Exclamation point and attention notice
Attention: The environments in Table 1 refer to the hardware of the tape system and may lead to temperatures greater than allowable for the cartridges and media stored therein. Refer to the following topics and adjust the operating environment for the library accordingly.
Table 1. Equipment environment specifications for the tape system
Product operation (equipment is powered on) Product power off
Dry-bulb temperature Humidity range, non-condensing Maximum wet-bulb temperature4 Maximum dew point temperature5 Maximum elevation Dry-bulb temperature Relative humidity Maximum wet-bulb temperature
Allowable1 Recommended 2 Maximum rate of change Allowable Recommended Maximum rate of change
16 to 32°C
(60 to 90°F)		 16 to 25°C
(60 to 77°F)		 5°C/hour
(9°F/hour)		 20% to 80% RH 20% to 50% RH 5% RH/hour3 with no condensation 26°C (79°F) 22°C (72°F) 3050 m (10,000 feet) 5 to 45°C
(40 to 113°F)		 8% to 80% RH 26°C (79°F)
Notes:
  1. Derate maximum dry-bulb temperature 1°C/300 m above 900 m (1.8°F/1,000 feet above 3,000 feet).
  2. Derate maximum recommended dry-bulb temperature 1°C/300 m above 1,800 m (1.8°F/1,000 feet above 6,000 feet).
  3. For 3592 media, changes of up to 40% RH in 5 minutes are allowed as long as the 20% to 80% absolute limits are not exceeded.
  4. Applies to LTO drive generations 1 through 8 and to legacy 3592 drives (TS1155 and prior generations).
  5. Applies to all other drives.
Figure 1. Psychrometric chart showing recommended and allowable operating environments for the tape library
Psychrometric chart showing recommended and allowable operating environments
Notes:
  • The chart is shown in SI (metric) units and a barometric pressure of 101.325 kPa (sea level).
  • The recommended operating environment specifies a long-term operating environment that can result in the greatest reliability and energy efficiency.
  • The allowable operating environment represents where the equipment has been tested to verify functionality.