Page 4 - JUSTEK Terjemahan

performance of data centers are key factors in the success of modern bank operations.

3. Determining the tier for data centers in a bank or financial institution is crucial

because data centers play an important role in maintaining the security, availability,

and integrity of customer data and financial transactions. Uptime Institute has
developed a tier system to classify data centers based on their availability and

redundancy levels. For data centers, there are four tier levels commonly used:

Tier I: data centers are the most basic, with low availability and no major

redundancy. Tier I is suitable for non-critical environments or business sectors
that do not require continuous high availability.

Tier II: data centers have slightly better availability than Tier I, with some
redundancy components such as dual cooling units or dual power sources. Tier II

is typically used by companies that require slightly higher availability but do not
need critical levels.

Tier III: data centers are a good choice for companies with critical business
sectors, such as banks and financial institutions, with excellent availability and

redundancy in electrical and cooling systems. Tier III allows maintenance and

infrastructure upgrades at data centers without disrupting the bank's operations.

Tier IV: the highest tier level for data centers, with the highest availability and
full redundancy for all major systems in the data center. Tier IV is very suitable

for companies that require almost absolute availability, such as large banks and

financial.

4. Therefore, a bank's data center should be at least Tier III (if a bank's data center is at
Tier IV, that is even better). However, the selection of the data center tier should be

based on the specific needs of the bank or financial institution, including the required

level of availability, available budget, and acceptable business risk.

5. According to ASHRAE Guidelines, the optimal temperature range for data centers is

18°C to 27°C (64.4°F to 80.6°F). ASHRAE Guidelines advise an optimal range for
relative humidity (RH) between 40% and 60%. The purpose of these instructions is

to achieve a harmonious equilibrium between energy efficiency and equipment
reliability. This will guarantee the best possible performance and prevent any

potential hardware damage caused by overheating or excessive moisture.