Brocade Communications Systems AA979A - StorageWorks SAN Switch 2/8V Reference Manual page 291

Recommended
To maintain full (2X) redundancy and proper monitoring by Fabric Watch, 4 active power supplies
Action
should be supplied and the default values associated with the presence of an AP blade should be entered
with switchstatuspolicyset.
Severity WARNING
FW-1500
Message
<timestamp>, [FW-1500], <sequence-number>,, WARNING, <system-name>,
Mail overflow - Alerts being discarded.
Probable Indicates that mail alert overflow condition has occurred.
Cause
Recommended Resolve or disable the mail alert using fwMailCfg cmd.
Action
Severity WARNING
FW-1501
Message
<timestamp>, [FW-1501], <sequence-number>,, INFO, <system-name>,
Mail overflow cleared - <Mails discarded> alerts discarded.
Probable
Indicates that the mail overflow condition has cleared.
Cause
Recommended
No action is required.
Action
Severity
INFO
Fabric OS Message Reference
Publication Number: 53-1000242-01
25
FW-1500
25-85