Dell EMC OpenManage Command Line Interface Guide Version 9.1


Omconfig Change Virtual Disk Policy

Table 1. omconfig Change Virtual Disk Policy . The following table describes the process to change the read, write, or cache policy in a virtual disk.


Changes a virtual disk’s read, write, or cache policy.


omconfig storage vdisk action=changepolicy controller=id vdisk=id [diskcachepolicy=<enabled|disabled> | readpolicy=<ra| nra| ara| rc|nrc> | writepolicy=<wb| wt| wc| nwc> | fwb> cachepolicy=<d | c>] , where id is the controller ID and virtual disk ID as reported by the omreport command.

  • NOTE: To obtain these values, type omreport storage controller to display the controller IDs and then type omreport storage vdisk controller=ID to display the IDs for the virtual disks attached to the controller.
For more information about the controller-specific diskcache, read, write, and cache policy, see the Dell EMC OpenManage Online Help. For information on specifying these parameters using the omconfig command, see the following:
  • [readpolicy=<ra | nra | ara | rc | nrc>] parameter (optional)
  • [writepolicy=<wb | wt | wc | nwc | fwb>] parameter (optional)
  • [cachepolicy=<d | c>] Parameter (optional)
  • [diskcachepolicy=<enabled|disabled>] parameter (optional)

Example to

Change the read policy of virtual disk 4 on controller 1 to no-read-ahead.


omconfig storage vdisk action=changepolicy controller=1 vdisk=4 readpolicy=nra

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