Red Hat ENTERPRISE VIRTUALIZATION FOR DESKTOPS Manual de usuario descargar pdf (Pagina 8)

A Principled Technologies sizing guide 8

Red Hat Enterprise Virtualization sizing guide

Power users, understandably, require more memory per guest than office

workers, but not as much as one might think. Like Figure 6, Figure 7 shows a gradual

increase in RAM utilization over time. Our testing indicated that a power user with 4 GB

of RAM only uses 2.54 GB of RAM running RHEV.

Figure 7: RAM utilization in the power user scenario.

Disk requirements

Every active guest increases the load on the server’s disks. Figure 8 shows how

the disk usage tends to have small spikes in IOPS, with a gradual overall increase as

guests log on. Overall, the disk requirements are not strenuous, averaging out to about

8.6 IOPS per guest.

Figure 8: Disk activity in the office worker scenario.

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RAM used in GB

Number of guests running

RAM used - Power user

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Activity in IOPS

Number of guests running

Disk Activity - Office worker

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Red Hat ENTERPRISE VIRTUALIZATION FOR DESKTOPS Manual de usuario Pagina 8