Resource Provisioning ESXi Virtual Machine Add Memory Tutorial

A very important aspect of the ESXi 5 integration system becoming very popular is to make the memory combination work. Usually an OpenSolaris-derived operating system is used for storage just as it provides ZFS and native iSCSI to provide fast, reliable and redundant storage for other virtual machines and network devices. In other words, OpenIndiana, a popular OpenSolaris derivative, likes to use as much memory as possible for the cache. Since ESXi 5.0 Free Edition has a 32GB limit, allocating memory for various virtual machines becomes an important task. This simple tutorial will teach you how to change the ESXi virtual machine memory allocation in the easiest way, because many users will be stuck with the concept of changing the memory allocation of different machines.

Test Configuration

It’s time to play on my ESXi 5.0 test platform. If you want to see a cheap, but very powerful configuration, you can check out the AMD Opteron 6128 ESXi server.

1. CPU: 2 AMD Opteron 6128 2. Motherboard: Supermicro H8DG6-F 3. Memory: 8 4GB Kingston unbuffered ECC 1333MHz DIMMs 4. Solid State Drive: OCZ Vertex 3 120GB 5. Power: Corsair AX650 650w 80 Plus Gold 6. Chassis: Norco RPC-450B 7. Cooling: 2 Dynatron A1 G34 heatsinks 8. VMware ESXi 5.0

Changing memory allocation

Before we started, there was actually The big premise is that you do have enough physical memory. If you only have 16GB of RAM, it's hard to give your ZFS storage virtual machine 24GB of RAM and give a Linux virtual machine 8GB of RAM, even if you try to over-allocate. I also assume that you are logged in to the ESXi machine using the VMware vSphere client. If you can't do it until then, you might want to consider a streamlined installation. One more thing to note is that you need to close the virtual machine you want to change before starting the following operations.

The first thing you have to do is find the virtual machine you want to allocate memory to. In this case, I used the OpenIndiana 151a virtual machine, which provides ZFS storage.

After finding the virtual machine, right click on it and select “Edit Settings”. You can also complete this step from the menu item in the VMware vSphere client.

After the Virtual Machine Properties settings window appears, you click on “Memory”, which will display a scroll bar. Note that the recommended value for OpenIndiana is 1GB, and the maximum recommended value is 1TB. It seems like a lot now, but it won't be a while. Remember, three-quarters of the current Xeon E5 servers have reached this level.

Next, you can change this value by using GB (top) or MB (below). In fact, for an integrated setup, I recommend at least 8G of RAM. 2GB is too little for ZFS.

This is all, but the process is simple, but if you need to allocate more memory for other virtual machines or you want to reclaim free memory over time It is very important.