entstat equivalent for FC adapters in AIX.

The entstat -d ent# commands delivers a lot of useful information about a network adapter. We often used it to determine if the adapter has “LINK” and with what speed it move the data from and to the host. Its equivalent for FC adapters is called fcstat and it works for both physical and virtual FC adapters.

# fcstat -e fcs0 | grep -E "Type|fcs|Port Name|Port Speed"
FIBRE CHANNEL STATISTICS REPORT: fcs0
Device Type: 8Gb PCI Express Dual Port FC Adapter (df1000f333108a03) (adapter/pciex/df1000f114108a0)
World Wide Port Name: 0x10000220C985EA6B
Port Speed (supported): 8 GBIT
Port Speed (running):   8 GBIT
Port Type: Fabric

# fcstat -e fcs0 | grep -E "Type|fcs|Port Name|Port Speed"
FIBRE CHANNEL STATISTICS REPORT: fcs0
Device Type: Virtual Fibre Channel Client Adapter (adapter/vdevice/IBM,vfc-client)
World Wide Port Name: 0xC05076039B790032
Port Speed (supported): UNKNOWN
Port Speed (running):   8 GBIT
Port Type: Fabric

Even more FC adapter statistics can be obtained using the -D option like for example  #fcstat -D fcs0. The last command generates almost twice as much information than the fcstat -e fcs0.