Disabling the AIX dynamic tracking
The AIX dynamic tracking may cause issues with the NetBackup AIX SAN Client backup jobs.
IBM AIX dynamic tracking of Fibre Channel devices is controlled by a new fscsi device attribute dyntrk.
From the AIX NetBackup SAN Client host, the AIX Fibre Channel I/O parameters for dynamic tracking and FC_ERROR_RECOV must be disabled. It helps to prevent the write buffer failure to NetBackup and helps run NetBackup AIX SAN Client backup jobs without any issues.
To disable the AIX dynamic tracking
- Update the dyntrk and FC_ERROR_RECOV attributes as follows to disable the AIX dynamic tracking:
chdev -l fscsi<fibre channel device ID> -a dyntrk=no
For example, chdev -l fscsi0 -a dyntrk=no
chdev -l fscsi<fibre channel device ID> -a fc_err_recov=delayed_fail
For example, chdev -l fscsi0 -a fc_err_recov=delayed_fail
- Verify that the changes are applied.
lsattr -E -l fscsi<device ID>
For information about the IBM AIX dynamic tracking of Fibre Channel devices, see the IBM documentation.