Table 1-6, Limiting resources by application type – Dell VmWare ESX Server 2.12 User Manual
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Deployment Guide
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•
Tradeoffs between memory and CPU resources:
•
If VMs are CPU-bound and RAM is under-utilized, then turn off
page sharing. You can achieve this from the ESX Server
Management User Interface (MUI):
•
Choose Options tab.
•
Next, click on Advanced Settings.
•
Set Mem.ShareScanTotal to 0. (The default is 200.)
•
If VM peak memory is bursty, then decrease idle memory tax rate.
From ESX MUI:
•
Choose Options tab.
•
Next, click on Advanced Settings.
•
Set Mem.IdleTax to the rate of your choice. (The default
is 75%.)
•
VMware performance metrics can be accessed by exploring the
directory structure at /proc/vmware within the Service Console.
•
For better backup practices, it is recommended to create two virtual
disks for each virtual machine: one virtual disk containing
OS/application installation files and the other virtual disk containing
user data. This allows for more frequent backup of the data virtual disk.
•
Identify the limited resource by application type:
Table 1-6.
Limiting Resources by Application Type
Limiting Resource
Likely Application Type
RAM
Web Server, Application
Server, File Server
CPU
Application Server,
Streaming Server
Network
File Server
Disk
SAN Database, data-
intensive Application
Server
X6320bk0.book Page 23 Friday, August 27, 2004 1:35 PM