IBM TS4300 User Manual

Table 20. Environment for storage and shipping the IBM tape cartridge
Environmental specications
Environmental factor Allowable storage Recommended storage Shipping
Temperature
16 to 32°C
(61 to 90°F)
16 to 25°C
(61 to 77°F)
-23 to 49°C
(-9 to 120°F)
Relative humidity
(noncondensing)
20 to 80% 20 to 50% 5 to 80%
Maximum wet bulb
temperature (does not
apply to 3592 JE tape
cartridges)
26°C (79°F) N/A 26°C (79°F)
Maximum dew point
temperature (applies only
to 3592 JE tape
cartridges)
22°C (72°F) N/A 22°C (72°F)
Magnetic eld
Stray magnetic eld at any point on tape not to exceed 50 oersteds (4000 ampere/
meter).
Gas and particulate exposure table
Table 21. Gas and particulate contamination
Contaminate Requirement
Gaseous contamination Severity level G1 as per ANSI/ISA 71.04-1985,
1
which states that the reactivity rate of copper coupons shall be less than 300 Angstroms
per month (Å/month, ≈ 0.0039 µg/cm² - hour weight gain).
2
In addition, the reactivity rate of silver coupons shall be less than 300
Å/month (≈ 0.0035 µg/cm² - hour weight gain).
3
The reactive monitoring of gaseous corrosivity should be conducted approximately 5 cm
(2 inches) in front of the rack on the air inlet side at one-quarter and three-quarter frame height off the floor or where the air velocity is
much higher.
Particulate contamination Data centers must meet the cleanliness level of ISO 14644-1 class 8. For data centers without airside economizer, the ISO 14644-1 class
8 cleanliness might be met simply by the choice of the following ltration:
• The room air might be continuously ltered with MERV 8 lters.
• Air entering a data center might be ltered with MERV 11 or preferably MERV 13 lters.
For data centers with airside economizers, the choice of lters to achieve ISO class 8 cleanliness depends on the specic conditions
present at that data center.
The deliquescent relative humidity of the particulate contamination should be more than 60% RH.
4
Data centers must be free of zinc whiskers.
5
Notes:
1. ANSI/ISA-S71.04. 1985. Environmental conditions for process measurement and control systems: Airborne contaminants, Instrument Society of America, Research Triangle Park,
NC, 1985.
2. The derivation of the equivalence between the rate of copper corrosion product thickness growth in Å/month and the rate of weight gain assumes that Cu
2
S and Cu
2
O grow in equal
proportions.
3. The derivation of the equivalence between the rate of silver corrosion product thickness growth in Å/month and the rate of weight gain assumes that Ag
2
S is the only corrosion
product.
4. The deliquescent relative humidity of particulate contamination is the relative humidity at which the dust absorbs enough water to become wet and promote ionic conduction.
5. Surface debris is randomly collected from 10 areas of the data center on a 1.5 cm (0.6 inch) diameter disk of sticky electrically conductive tape on a metal stub. If examination of
the sticky tape in a scanning electron microscope reveals no zinc whiskers, the data center is considered free of zinc whiskers.
Acclimation
Server and storage equipment (racks and frames) must be gradually acclimated to the surrounding
en
vironment to prevent condensation.
When server and storage equipment (racks and frames) is shipped in a climate where the outside
temperature is below the dew point of the destination (indoor location), there is a possibility that water
condensation can form on the cooler inside and outside surfaces of the equipment when the equipment is
brought indoors.
IBM Condential
32IBM T
S4300 Tape Library Machine Type 3555: User's Guide

IBM TS4300 Specifications

General

Brand	IBM
Model	TS4300
Category	Network Hardware
Language	English