Red Hat NETSCAPE MANAGEMENT SYSTEM 4.5 Bedienungsanleitung PDF herunterladen (Seite 259)

Resource Management

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<nshares> shares. The valid range of values for <nshares> is 0 to 100000,

enabling a large range of allocation ratios. If the number of shares for a disk is not

specified, the default allocation is 1000.

Note: It is important to use the same name when you specify the virtual disk name

and the shares for that disk. If <fsname> is used to specify the name of a virtual disk,

the same <fsname> must be used to specify the shares. If a fully qualified set of

numbers is used to specify the virtual disk name (for example, vmhba0:5:0), then

the same set of numbers should be used to specify <fsname> when you are setting

the number of shares.

Note: It is possible for a configuration file to have multiple lines specifying the

number of shares. If this happens, the value specified in the last of those lines is used.

Configuration File Examples

scsi0.virtualdev = vmxbuslogic

scsi0:1.present = TRUE

scsi0:1.name = rootdiskfs:rh6.2.dsk

scsi0:1.mode = persistent

sched.disk.shares.rootdiskfs = 800

scsi0:2.present = TRUE

scsi0:2.name = scratchfs:scratch1.dsk

sched.disk.shares.scratchfs = 400

In the example above, the first four lines in the first group and the first two lines in the

second group are present in the configuration file before you make your changes. The

final line in each group is the added line to specify the disk bandwidth allocation. As

described above, check the value of <fsname> in the line specifying the VMFS file

and use the same value in the line specifying the disk bandwidth allocation. In the first

group of lines in the example, that value is rootdiskfs; in the second group of

lines, it is scratchfs.

Managing Disk Bandwidth from the Console Operating System

Use the following guidelines for the console operating system commands to monitor

and manage allocation of disk bandwidth on an ESX Server computer.

/proc/VMware/vm/<id>/disk/vmhba<x:y:z>

Reading from this file reports the number of disk bandwidth shares allocated to the

virtual machine identified by <id> for the disk identified by vmhba<x:y:z>. It also

reports disk usage statistics.

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Red Hat NETSCAPE MANAGEMENT SYSTEM 4.5 Bedienungsanleitung Seite 259