If you are in the market of colocation in Vietnam, you probably already know a thing or two about the importance of DC cooling.
You probably have a general idea of the right temperature range for your servers and infrastructure, and understand how hot or cold aisle containment can help your vendor to deliver that. But can you really pinpoint the correlation between DC cooling and the risk of unplanned downtime?
Do small temperature changes matter?
Actually, does it matter if you gain a few degrees here and there? There is an argument that it may not have made much difference five or six years ago. However, cooling is now more vital than ever because DC clients are squeezing more and more performance out of a single rack.
Nowadays, virtualization and more demanding hardware utilization rates, it is generally seen at least twice this level in a standard density facility and may even reach double figure kW usage per rack.
Therefore, if colocation Vietnam Ho Chi Minh is not making the most of their cooling systems and is allowing hot and cold air to mix through lack of control, then both capacity and efficiency are easily lost – and the risk of downtime and equipment failure is easily introduced. Question your DCs on their maximum cooling capability per rack – you may not intend to use a large amount of power today, but your cooling demands may increase as your server usage and power load grows.
It’s not just about temperature
Moreover, it is worth noting that the relationship between cooling and resilience is not just about the ambient temperature. An air conditioning unit can fail, just like any other component, so you should look for significant redundancy here too. It is therefore important to ask your vendor about how they maintain their air conditioning units, what their capacity is, how it is all monitored, and what degree of redundancy they offer to protect against failure or unit isolation for routine maintenance. After all, no degree of UPS redundancy can compensate for a power failure if it leaves you without air conditioning and your servers are fried.
The optimal colocation temperature
Whilst some academic studies show that running a DC at a higher temperature is perfectly acceptable, this can only be truly considered if you have a full understanding, control and monitoring over almost every piece of hosted equipment in the colocation Vietnam.
In a multi-tenanted, multi-vendor collocated environment, the cooling requirements of hosted equipment will vary hugely and so making sweeping temperature decisions could have hard-hitting consequences for some clients. It is therefore recommended that you look for a vendor who adhered to official guidelines set by American Society of Heating, Refrigerating and Air-Conditioning Engineers – ASHRAE, who state that 21 degrees is optimal, and stand by the consensus that lower, but not necessarily minimal, temperatures are better for system availability and performance. SLAs should also be in place to guarantee cooling temperatures, much as you would expect with power SLAs – and extensive monitoring systems should be evident to ensure that alerts are generated where thresholds are crossed.