How Operations Teams Have Found Working With Us
Feedback from facilities leads and IT operations managers across Malaysia who have engaged haldenreefa for airflow reviews, workshops, and planning advisory.
← Back to Home60+
Facilities reviewed
7+
Years of advisory
4.8
Average satisfaction score
3
Professional memberships
What Clients Say
Wong Tze Kiat
Infrastructure Lead, Puchong
"We brought haldenreefa in for an airflow review before adding six new AI-class nodes. The written summary they delivered was clear enough for me to use directly in a conversation with our building management team. That saved a lot of back-and-forth."
Airflow Review · May 2025
Nadia Amiruddin
Facilities Manager, Shah Alam
"The Capacity & Cooling Workshop was well-paced and practically focused. A couple of the planning templates they provided are now part of our standard process. My one note is that we could have used slightly more time on the power draw section, but the follow-up summary covered most of that."
Capacity Workshop · April 2025
Krishnamoorthy Rajan
IT Operations Director, KL Sentral
"We are on our second quarter of the planning retainer and it has changed how we approach phasing decisions. Having someone to sense-check our capacity sequencing before we commit to hardware orders has already avoided at least one potentially costly mismatch."
Planning Retainer · Ongoing
Lim Chee Wah
Data Center Manager, Cyberjaya
"What I appreciated was that haldenreefa was very clear about what was outside their scope. When we needed licensed mechanical advice, they said so rather than trying to stretch their services. That honesty made it easy to engage them for what they are actually good at."
Airflow Review · May 2025
Siti Balqis Othman
Operations Lead, Subang Jaya
"The workshop gave our team a shared vocabulary for talking about cooling capacity. Before, different people were using the same terms to mean different things. The follow-up summary was a useful reference for the three months after — we kept coming back to it in planning meetings."
Capacity Workshop · March 2025
Ahmad Fauzi Nordin
IT Infrastructure Manager, Petaling Jaya
"We had a hot-aisle issue we could not pin down. The airflow review identified two things we had overlooked in our own walkthroughs. Nothing dramatic — but both were straightforward to address once they were identified. Good value for the scope."
Airflow Review · April 2025
Planning Engagements in Detail
Enterprise Data Room Preparing for GPU Rack Deployment
Challenge
An enterprise IT team in Selangor was planning to add eight GPU racks to an existing room that had been built for standard server density. They had no clear picture of whether their existing CRAC units and hot-aisle containment could handle the new load profile.
Advisory
haldenreefa conducted an Operational Airflow Review covering the current thermal zone layout, identifying three areas where airflow return paths were partially blocked. A recommendations summary outlined two layout adjustments within the team's control and flagged where mechanical input would be needed for the higher-density sections.
Outcome
The team addressed both operational adjustments before hardware delivery. The deployment proceeded with a clearer maintenance plan for the new high-density zone. Timeline: two weeks from kick-off to written output.
"The review gave us a document we could reference in conversations with both our internal team and the hardware vendor. That was exactly what we needed before we committed." — IT Infrastructure Manager, Selangor
Operations Team Upskilling Ahead of Phased Expansion
Challenge
A mid-sized colocation operator in KL was planning a three-phase expansion over eighteen months. Their operations team had strong day-to-day skills but limited experience reasoning about power draw and cooling capacity at a planning level, which was creating slow decision cycles when new customers requested non-standard rack configurations.
Advisory
The Capacity & Cooling Workshop was run for a team of six, covering power draw estimation methods, cooling headroom calculation, and how to think about sequencing capacity additions across phases. Planning templates were provided and the follow-up summary included worked examples relevant to the operator's specific rack density range.
Outcome
The team reported faster internal conversations around non-standard customer requests within four weeks of the workshop. The planning templates were adapted for use in their customer intake process. Timeline: single half-day session plus three-day summary delivery.
"We had been making capacity decisions partly by feel. After the workshop, we had a repeatable way to think through the numbers before agreeing to a new rack configuration." — Operations Lead, Kuala Lumpur
Phased Build Programme With Ongoing Advisory Support
Challenge
A regional enterprise was building out a new data hall in three phases over nine months. Their project manager needed operational advisory available across all three phases — particularly for airflow strategy and capacity sequencing decisions between phases — without the cost of a full-time specialist.
Advisory
haldenreefa was engaged on a Planning Advisory Retainer across two quarters. Recurring sessions were scheduled at phase boundaries and before key procurement decisions. A decision log was maintained across the engagement, capturing the rationale for airflow and capacity choices made at each stage.
Outcome
Phase one and phase two were completed with documented advisory input on all major layout decisions. The decision log became a handover document for their internal operations team taking over ongoing management post-build. Timeline: two quarterly engagements.
"The retainer structure suited how our project actually ran — we needed advice at decision points, not on a fixed weekly schedule. That flexibility made it practical." — Project Manager, Selangor
Phone
+60 3-7624 9038Address
Persiaran Tropicana 14
47410 Petaling Jaya, Selangor
Office Hours
Mon–Fri: 9:00–18:00 MYT
Sat: 10:00–13:00 MYT
Credentials and Memberships
AISP Malaysia
Professional member — Association of Information Security Professionals Malaysia
ASHRAE Trained
Practitioners trained on ASHRAE 9.9 thermal guidelines for data center environments
MDCA Affiliate
Affiliated with Malaysia Data Centre Alliance — industry network for DC operators
4.8 / 5.0
Average client satisfaction score across all completed engagements 2024–2025
Ready to Discuss Your Facility?
Whether you have a specific airflow question or are looking for ongoing support across a build programme, reach out and we will explain how an engagement would work.
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