VMware GSX Server 3 Administration Guía de instalación descargar pdf (Pagina 318)

www.vmware.com

326

VMware ESX Server Administration Guide

Setting Your Multipathing Policy for a LUN

You can specify the default policy for the multipathing feature. There are two policies:

• fixed — ESX Server always uses the preferred path to the disk; if it cannot access

the disk through the preferred path, then it tries the alternate paths. Fixed is the

default policy for active/active storage devices.

Enter the following command to select the fixed policy for a disk, in this

example, vmhba0:0:0.

# vmkmultipath -s vmhba0:0:0 -p fixed

• mru — ESX Server uses the most recent path to the disk until this path becomes

unavailable. That is, ESX Server does not automatically revert back to the

preferred path. Most recent path (mru) is the default policy for active/passive

storage devices.

Enter the following command to select the mru policy for a disk, in this example,

vmhba0:0:0.

# vmkmultipath -s vmhba0:0:0 -p mru

Note: You can select a different policy for each disk.

Specifying Paths

You can use the vmkmultipath command to disable and enable paths, set the

active path, and set the preferred path, as illustrated in the following examples. You

configure paths by setting path modes with the -s option.

Enabling a Path

Use the -e option to enable paths with vmkmultipath. In this example, you are

enabling the path from controller vmhba1:0:1 to disk vmhba0:0:1.

# vmkmultipath -s vmhba0:0:1 -e vmhba1:0:1

Disabling a Path

Use the -d option to disable paths with vmkmultipath. In this example, you are

disabling the path from controller vmhba1:0:1 to disk vmhba0:0:1.

# vmkmultipath -s vmhba0:0:1 -d vmhba1:0:1

Setting the Preferred Path

Use the -r option to specify the preferred path to a disk. In this example, you are

setting as preferred the path from controller vmhba1:0:1 to disk vmhba0:0:1.

# vmkmultipath -s vmhba0:0:1 -r vmhba1:0:1

1 2 ... 313 314 315 316 317 318 319 320 321 322 323 ... 435 436

Sin comentarios

VMware GSX Server 3 Administration Guía de instalación Pagina 318