Brocade Communications Systems AA979A - StorageWorks SAN Switch 2/8V Reference Manual page 177

Recommended
It is unlikely that WWN conflicts will occur as a result of pool rollover unless the switch is deployed in
Action
a very large MetaSAN environment with large number of LSAN devices and fabrics, or there are highly
dynamic changes to EX port connectivity. WWN conflicts might cause unpredictable behavior in
management applications.
To avoid WWN conflicts, all EX ports attached to fabrics with highly dynamic changes to EX port
connectivity should be disabled then reenabled.
Severity
INFO
FCR-1027
Message
<timestamp>, [FCR-1027], <sequence-number>,, INFO, <system-name>,
Port WWN roll over.
Probable
Indicates that the port WWN pool has rolled over and WWN entries detected to not be in use are reused
Cause as needed.
Recommended It is unlikely that WWN conflicts will occur as a result of pool rollover unless the switch is deployed in
Action a very large MetaSAN environment with large number of LSAN devices and fabrics, or there are highly
dynamic changes to EX_Port connectivity. WWN conflicts might cause unpredictable behavior in
management applications.
To avoid WWN conflicts, all EX_Ports attached to fabrics with highly dynamic changes to EX or VEX
port connectivity should be disabled then re-enabled.
Severity INFO
FCR-1028
Message
<timestamp>, [FCR-1028], <sequence-number>,, INFO, <system-name>,
Node WWN pool 95 percent allocated.
Probable Indicates that the node WWN pool is close to rollover and that the WWN entries detected to not be in
Cause
use will be reused as needed.
Recommended
It is unlikely that WWN conflicts will occur as a result of pool rollover unless the switch is deployed in
Action
a very large MetaSAN environment with large number of LSAN devices and fabrics, or there are highly
dynamic changes to EX or VEX port connectivity. WWN conflicts might cause unpredictable behavior
in management applications.
To avoid WWN conflicts, all EX ports attached to fabrics with highly dynamic changes to EX port
connectivity should be disabled then reenabled.
Severity
INFO
Fabric OS Message Reference
Publication Number: 53-1000242-01
18
FCR-1027
18-9