Home > Storage > Data Storage Essentials > Storage Admin > Fabric Notifications with Dell PowerMax > Best Practices for Fabric Notifications with Fibre Channel Host Bus Adapters (HBAs)
Today, select HBAs (see below) can register for Fabric Notifications. These HBAs can log Fabric Notifications as well as automate remediations when congestion notifications are received. Fabric Notifications support on HBAs is also a requirement to enable PowerPath and MPIO support of Fabric Notifications.
Note: Older HBAs that do not support Fabric Notifications are still important within the Fabric Notifications ecosystem.
Older HBAs are a major cause of marginal transceivers and congestion in the SAN. When these older HBAs cause flaky links or congestion, Fibre Channel switches and directors will send Fabric Notifications to end-devices such as storage arrays. This provides administrators and Dell Support with additional information for troubleshooting.