Our Training division has a 6 year old HP ML110 -G6 Sever used as the Vmware ESXi host . Back in the time of ESXi 4.0 and 4.1 , the 2 GB RAM on the system was more than enough to run the lab sessions . But with VMware ESXi 5.5 and all the new workload , the server lost its charm and we used it mostly for running small workloads .
We recently planned to upgrade the system to a higher memory configuration and found it really difficult to get the HP spare for the memory upgrade . The 4 GB ECC RAM pieces with HP logo on it cost more than 5000 Indian rupees . We done a little research from our end and gone for the aftermarket product . Sharing the details of the same so that it will be beneficial for someone who is looking forward to upgrade their system to higher memory configuration .
We used ZION 4GB modules DDR3 PC1600 ECC RAM which is readily available in indian market for less than 3,000 INR . That means at the cost of 2 GB ECC RAM from HP we are getting 4 GB RAM .
We purchased 2 modules and upgraded the system to a total capacity of 8 GB . We did not tried to mix it with 2 GB module as it may affect the overall performance of the system .
After upgradation we done a through testing of the system and it is performing nice on heavy virtual machine workloads . Now it is running ESXi 6.5 hypervisor .