FRU/Event
category
Corresponding SMI-S class Operation status values that would trigger alert conditions
FC Port
DHS_FCPort Stopped, OK
SAS Port
DHS_SASTargetPort Stopped, OK
iSCSI Port
DHS_ISCSIEthernetPort Stopped, OK
Using the trust command
Use the CLI trust command only as a last step in a disaster recovery situation.
Do not use the trust command if a disk group with a single disk is in a leftover or failed condition. The trust command may cause
permanent data loss and unstable operation of the disk group. Only use the trust command if the disk group is in an Offline state.
A disk that has failed or is in a leftover state due to multiple errors should be replaced with a new disk. Assign the new disk back to the
disk group as a spare. Then allow reconstruction to complete to return the disk group to a fault tolerant state.
The trust command attempts to resynchronize leftover disks to make any leftover disk an active member of the disk group. The trust
command may be needed when a disk group is offline because there is no data backup. The trust command may also be needed as a
last attempt to recover the data on a disk group. In this case, the trust command may work, but only if the leftover disk continues to
operate. When the "trusted" disk group is back online, backup all data on the disk group and verify all data to ensure it is valid. Then delete
the trusted disk group, add a new disk group, and restore data from the backup to the new disk group.
NOTE:
Using trust on a disk group is only a disaster-recovery measure. The disk group has no tolerance for another
failure and should never be put back into a production environment.
CAUTION: Before trusting a disk group, carefully read the cautions and procedures for using the trust command in the
Dell EMC PowerVault ME4 Series Storage System CLI Reference Guide
and online help. If you are uncertain whether to
use this command, contact technical support for assistance.
Once the trust command has been issued on a disk group, further troubleshooting steps may be limited towards disaster recovery. If
you are unsure of the correct action to take, contact technical support for further assistance.
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Events and event messages
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