Cisco N5K-C5010P-BF Troubleshooting Guide - Page 118
Communication problem between host and storage devices, VSAN is down between switches
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VSANs Chapter 5 Troubleshooting SAN Switching Issues Send document comments to [email protected]. Communication problem between host and storage devices The communication problem between host and storage devices is because: • Zones are active. • Both host and storage are logged into the SAN. • The storage port is not logged into the active zone set. Example: zoneset name ZoneSet_Host_Storage vsan 100 zone name Zone_Host_Storage vsan 100 * fcid 0x640114 [pwwn 20:00:00:25:b5:00:20:0e] [Host] pwwn 50:0a:09:81:86:78:39:66 [Storage] Possible Cause The host or storage port are in the wrong VSAN. Example: switch(config)# show fcns database VSAN 50: FCID TYPE PWWN (VENDOR) FC4-TYPE:FEATURE 0x420000 N 50:0a:09:81:86:78:39:66 (NetApp) scsi-fcp:target [Storage] Solution Move the storage port to the correct VSAN. (VSAN 100 is the correct VSAN in the example.). Example: switch(config)# show flogi database vsan 50 INTERFACE VSAN FCID PORT NAME NODE NAME fc2/2 50 0x420000 50:0a:09:81:86:78:39:66 50:0a:09:80:86:78:39:66 [Storage] Total number of flogi = 1. switch(config)# vsan database switch(config-vsan-db)# vsan 100 interface fc 2/2 Traffic on fc2/2 may be impacted. Do you want to continue? (y/n) [n] y switch(config-vsan-db)# show zoneset active vsan 100 zoneset name ZoneSet_Host_Storage vsan 100 zone name Zone_Host_Storage vsan 100 * fcid 0x640114 [pwwn 20:00:00:25:b5:00:20:0e] [Host] * fcid 0x5a0000 [pwwn 50:0a:09:81:86:78:39:66] [Storage] VSAN is down between switches The VSAN is down between switches because: • VSAN is configured on both switches. • Trunk allow list allows the VSAN. 5-46 Cisco Nexus 5000 Series Troubleshooting Guide OL-25300-01