Editing Asymmetric Access States

Virtual Storage Platform One Block Administrator User Guide for VSP One Block 85
Version
A0-05-4x
10.5.x
Audience
anonymous
Part Number
MK-26VSP1B025-02
ft:lastEdition
2026-06-22

Asymmetric Access States define how a server prioritizes available I/O paths to a storage volume. These states determine which paths are treated as preferred (Active/Optimized) and which are treated as non preferred (Active/Non Optimized).

You can edit Asymmetric Access States on a on a per server basis.

Note:
  • If you are not using a cross-path configuration, you do not need to set the asymmetric access state.
  • Asymmetric Access States help prevent I/O from switching to unintended paths by controlling ALUA behavior based on asymmetric access status.
  • During remote path failures, the configured Asymmetric Access State influences which paths remain active for I/O processing and how the host continues access to the volumes.
  • To avoid operational inconsistencies, configure identical Asymmetric Access State settings for all GAD pairs that belong to the same GAD consistency group.

Verify that the following conditions are met:

  • At least one volume is attached to the server.
  • The quorum disk is healthy.
  1. From the navigation tree, select Storage > Servers .
  2. From the server inventory page, select the server that you want to configure.
    The server details page displays port connections, WWNs, and the current Asymmetric Access State for each port.
  3. From the action bar, select Edit Asymmetric Access States.
  4. In the Edit Asymmetric Access States page, review the list of ports. For each port, the following states can be selected:
    • Active / Optimized
    • Active / Non Optimized
  5. For each connected port, select the appropriate state:
    • Select Active / Optimized for preferred paths.
    • Select Active / Non Optimized for non preferred paths.
  6. Click Submit.