×

Warning message

  • Cisco Support Forums is in Read Only mode while the site is being migrated.
  • Cisco Support Forums is in Read Only mode while the site is being migrated.

Unable to see FLOGI database on MDS 9148

Answered Question
Feb 13th, 2014
User Badges:

Hello,


Just came accross with strange problem


SAN.png     


In above scenairo I am not able see my blades on WWN on MDS 9148 switch where I can see WWN on Nexus 5548


Please help me to troubleshoot this issue


Regards,

Amit Vyas

Correct Answer by Walter Dey about 3 years 6 months ago

Hi Amit


What are the flogi showing up going over fc 1/29 and 1/30 ?


Your problem is clear: it's a routing issue ? how can a initiator pwwn eg. in VSAN 100 decide, on which port he should go Northbound ?

The solution:

Create 2 additional VSAN's, e.g. 102 and 103; 100/101 will be used to reach N5k, 102/103 to reach MDS; you of course need 2 additional vhba's, one in 102, resp 103.

Hopefully you have done your zoning with device-alias (enhanced); then this change will be easy.

Another ugly solution would be to use static ping groups, which is hardly used, a management and scalabilty nightmare, and therefore not recommended.


Good luck

Walter.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
Loading.
Walter Dey Thu, 02/13/2014 - 05:55
User Badges:
  • Red, 2250 points or more
  • Cisco Designated VIP,

    2017 Unified Computing, Storage Networking

I assume UCS is in FC NPV mode ?


Did you configure the MDS in NPIV mode ?


are FC ports on the UCS in the proper VSAN ? eg. are the FC links from UCS to MDS up ?


Give us from each fabric interconnects the output of the following NX-OS commands: "show npv status"


And on the N5k, and MDS "show flogi database"

Amit Vyas Thu, 02/13/2014 - 11:10
User Badges:

Hi,


Please find my response below for the questions you have asked


I assume UCS is in FC NPV mode ? - Yes


Did you configure the MDS in NPIV mode ? - Yes


are FC ports on the UCS in the proper VSAN ? eg. are the FC links from UCS to MDS up ? - Yes, Links are UP on UCSM


Give us from each fabric interconnects the output of the following NX-OS commands: "show npv status" - Result below


Switch-A(nxos)# show npv status


npiv is enabled


disruptive load balancing is disabled


External Interfaces:

====================

  Interface: fc1/31, VSAN:  100, FCID: 0xa40020, State: Up

  Interface: fc1/32, VSAN:  100, FCID: 0xa40000, State: Up

  Interface: fc2/15, VSAN:  100, FCID: 0x180100, State: Up

  Interface: fc2/16, VSAN:  100, FCID: 0x180300, State: Up


  Number of External Interfaces: 4


Server Interfaces:

==================

  Interface: vfc2995, VSAN:  100, State: Up

  Interface: vfc3001, VSAN:  100, State: Up

  Interface: vfc3003, VSAN:  100, State: Up

  Interface: vfc3005, VSAN:  100, State: Up

  Interface: vfc3007, VSAN:  100, State: Up

  Interface: vfc3009, VSAN:  100, State: Up

  Interface: vfc3011, VSAN:  100, State: Up

  Interface: vfc3013, VSAN:  100, State: Up

  Interface: vfc3015, VSAN:  100, State: Up

  Interface: vfc3017, VSAN:  100, State: Up

  Interface: vfc3167, VSAN:  100, State: Up

  Interface: vfc3191, VSAN:  100, State: Up

  Interface: vfc3213, VSAN:  100, State: Up

  Interface: vfc3237, VSAN:  100, State: Up

  Interface: vfc3283, VSAN:  100, State: Up

  Interface: vfc3307, VSAN:  100, State: Up

  Interface: vfc3331, VSAN:  100, State: Up

  Interface: vfc3353, VSAN:  100, State: Up

  Interface: vfc3375, VSAN:  100, State: Up

  Interface: vfc3397, VSAN:  100, State: Up

  Interface: vfc3441, VSAN:  100, State: Up

  Interface: vfc3463, VSAN:  100, State: Up

  Interface: vfc3485, VSAN:  100, State: Up

  Interface: vfc3507, VSAN:  100, State: Up

  Interface: vfc3529, VSAN:  100, State: Up

  Interface: vfc3551, VSAN:  100, State: Up

  Interface: vfc3573, VSAN:  100, State: Up

  Interface: vfc3595, VSAN:  100, State: Up

  Interface: vfc3617, VSAN:  100, State: Up

  Interface: vfc3639, VSAN:  100, State: Up

  Interface: vfc3661, VSAN:  100, State: Up

  Interface: vfc3683, VSAN:  100, State: Up

  Interface: vfc3705, VSAN:  100, State: Up

  Interface: vfc3727, VSAN:  100, State: Up

  Interface: vfc3749, VSAN:  100, State: Up

  Interface: vfc3771, VSAN:  100, State: Up

  Interface: vfc3793, VSAN:  100, State: Up

  Interface: vfc3841, VSAN:  100, State: Up


  Number of Server Interfaces: 38


Switch-A(nxos)#

-----------------------------------------------------------------------------


Switch-B(nxos)# show npv status


npiv is enabled


disruptive load balancing is disabled


External Interfaces:

====================

  Interface: fc1/31, VSAN:  101, FCID: 0x3c0000, State: Up

  Interface: fc1/32, VSAN:  101, FCID: 0x3c0020, State: Up

  Interface: fc2/15, VSAN:  101, FCID: 0x0c0200, State: Up

  Interface: fc2/16, VSAN:  101, FCID: 0x0c0300, State: Up


  Number of External Interfaces: 4


Server Interfaces:

==================

  Interface: vfc2996, VSAN:  101, State: Up

  Interface: vfc3002, VSAN:  101, State: Up

  Interface: vfc3004, VSAN:  101, State: Up

  Interface: vfc3006, VSAN:  101, State: Up

  Interface: vfc3008, VSAN:  101, State: Up

  Interface: vfc3010, VSAN:  101, State: Up

  Interface: vfc3012, VSAN:  101, State: Up

  Interface: vfc3014, VSAN:  101, State: Up

  Interface: vfc3016, VSAN:  101, State: Up

  Interface: vfc3018, VSAN:  101, State: Up

  Interface: vfc3168, VSAN:  101, State: Up

  Interface: vfc3192, VSAN:  101, State: Up

  Interface: vfc3214, VSAN:  101, State: Up

  Interface: vfc3238, VSAN:  101, State: Up

  Interface: vfc3284, VSAN:  101, State: Up

  Interface: vfc3308, VSAN:  101, State: Up

  Interface: vfc3332, VSAN:  101, State: Up

  Interface: vfc3354, VSAN:  101, State: Up

  Interface: vfc3376, VSAN:  101, State: Up

  Interface: vfc3398, VSAN:  101, State: Up

  Interface: vfc3442, VSAN:  101, State: Up

  Interface: vfc3464, VSAN:  101, State: Up

  Interface: vfc3486, VSAN:  101, State: Up

  Interface: vfc3508, VSAN:  101, State: Up

  Interface: vfc3530, VSAN:  101, State: Up

  Interface: vfc3552, VSAN:  101, State: Up

  Interface: vfc3574, VSAN:  101, State: Up

  Interface: vfc3596, VSAN:  101, State: Up

  Interface: vfc3618, VSAN:  101, State: Up

  Interface: vfc3640, VSAN:  101, State: Up

  Interface: vfc3662, VSAN:  101, State: Up

  Interface: vfc3684, VSAN:  101, State: Up

  Interface: vfc3706, VSAN:  101, State: Up

  Interface: vfc3728, VSAN:  101, State: Up

  Interface: vfc3750, VSAN:  101, State: Up

  Interface: vfc3772, VSAN:  101, State: Up

  Interface: vfc3794, VSAN:  101, State: Up

  Interface: vfc3842, VSAN:  101, State: Up


  Number of Server Interfaces: 38


Switch-B(nxos)#



And on the N5k, and MDS "show flogi database" - Result Below


MDS-9148-SW1# show flogi database

--------------------------------------------------------------------------------

INTERFACE        VSAN    FCID           PORT NAME               NODE NAME

--------------------------------------------------------------------------------

fc1/1            100   0x180000  50:06:01:60:3e:e0:5a:27 50:06:01:60:be:e0:5a:27

fc1/2            100   0x180200  50:06:01:69:3e:e0:5a:27 50:06:01:60:be:e0:5a:27

fc1/3            100   0x180100  20:4f:54:7f:ee:a0:97:c0 20:c8:54:7f:ee:a0:97:c1

fc1/4            100   0x180300  20:50:54:7f:ee:a0:97:c0 20:c8:54:7f:ee:a0:97:c1


Total number of flogi = 4.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

MDS-9148-SW2# show flogi database

--------------------------------------------------------------------------------

INTERFACE        VSAN    FCID           PORT NAME               NODE NAME

--------------------------------------------------------------------------------

fc1/1            101   0x0c0000  50:06:01:68:3e:e0:5a:27 50:06:01:60:be:e0:5a:27

fc1/2            101   0x0c0100  50:06:01:61:3e:e0:5a:27 50:06:01:60:be:e0:5a:27

fc1/3            101   0x0c0200  20:4f:54:7f:ee:a0:9a:80 20:c9:54:7f:ee:a0:9a:81

fc1/4            101   0x0c0300  20:50:54:7f:ee:a0:9a:80 20:c9:54:7f:ee:a0:9a:81


Total number of flogi = 4.


-------------------------------------------------------------------------------------------------------------------------------------------------------------



N5K-Primary_SW# show flogi database

--------------------------------------------------------------------------------

INTERFACE        VSAN    FCID           PORT NAME               NODE NAME

--------------------------------------------------------------------------------

fc1/29           100   0xa40001  20:00:00:25:b5:00:00:1f 20:00:00:25:b5:00:00:7e

fc1/29           100   0xa40004  20:00:00:25:b5:00:00:7c 20:00:00:25:b5:00:00:5c

fc1/29           100   0xa40006  20:00:00:25:b5:00:00:7a 20:00:00:25:b5:00:00:4a

fc1/29           100   0xa40009  20:00:00:25:b5:00:00:48 20:00:00:25:b5:00:00:38

fc1/29           100   0xa4000a  20:00:00:25:b5:00:00:67 20:00:00:25:b5:00:00:57

fc1/29           100   0xa4000c  20:00:00:25:b5:00:00:26 20:00:00:25:b5:00:00:16

fc1/29           100   0xa40012  20:00:00:25:b5:00:00:02 20:00:00:25:b5:00:00:6b

fc1/29           100   0xa40013  20:00:00:25:b5:00:00:41 20:00:00:25:b5:00:00:2f

fc1/29           100   0xa40020  20:1f:54:7f:ee:a0:97:c0 20:64:54:7f:ee:a0:97:c1

fc1/29           100   0xa40021  20:00:00:25:b5:00:00:7f 20:00:00:25:b5:00:00:5e

fc1/29           100   0xa40023  20:00:00:25:b5:00:00:5d 20:00:00:25:b5:00:00:0e

fc1/29           100   0xa40024  20:00:00:25:b5:00:00:1d 20:00:00:25:b5:00:00:5f

fc1/29           100   0xa40026  20:00:00:25:b5:00:00:0b 20:00:00:25:b5:00:00:1b

fc1/29           100   0xa40028  20:00:00:25:b5:00:00:59 20:00:00:25:b5:00:00:49

fc1/29           100   0xa4002a  20:00:00:25:b5:00:00:18 20:00:00:25:b5:00:00:08

fc1/29           100   0xa4002b  20:00:00:25:b5:00:00:37 20:00:00:25:b5:00:00:27

fc1/29           100   0xa4002e  20:00:00:25:b5:00:00:15 20:00:00:25:b5:00:00:05

fc1/29           100   0xa4002f  20:00:00:25:b5:00:00:34 20:00:00:25:b5:00:00:24

fc1/29           100   0xa40031  20:00:00:25:b5:00:00:72 20:00:00:25:b5:00:00:4c

fc1/29           100   0xa40032  20:00:00:25:b5:00:00:32 20:00:00:25:b5:00:00:22

fc1/30           100   0xa40000  20:20:54:7f:ee:a0:97:c0 20:64:54:7f:ee:a0:97:c1

fc1/30           100   0xa40002  20:00:00:25:b5:00:00:1e 20:00:00:25:b5:00:00:6d

fc1/30           100   0xa40003  20:00:00:25:b5:00:00:3d 20:00:00:25:b5:00:00:6e

fc1/30           100   0xa40005  20:00:00:25:b5:00:00:4b 20:00:00:25:b5:00:00:2b

fc1/30           100   0xa40007  20:00:00:25:b5:00:00:1a 20:00:00:25:b5:00:00:79

fc1/30           100   0xa40008  20:00:00:25:b5:00:00:29 20:00:00:25:b5:00:00:19

fc1/30           100   0xa4000b  20:00:00:25:b5:00:00:07 20:00:00:25:b5:00:00:76

fc1/30           100   0xa4000d  20:00:00:25:b5:00:00:45 20:00:00:25:b5:00:00:35

fc1/30           100   0xa4000e  20:00:00:25:b5:00:00:64 20:00:00:25:b5:00:00:54

fc1/30           100   0xa4000f  20:00:00:25:b5:00:00:04 20:00:00:25:b5:00:00:73

fc1/30           100   0xa40011  20:00:00:25:b5:00:00:52 20:00:00:25:b5:00:00:3c

fc1/30           100   0xa40022  20:00:00:25:b5:00:00:2e 20:00:00:25:b5:00:00:7d

fc1/30           100   0xa40025  20:00:00:25:b5:00:00:0c 20:00:00:25:b5:00:00:1c

fc1/30           100   0xa40027  20:00:00:25:b5:00:00:2a 20:00:00:25:b5:00:00:3a

fc1/30           100   0xa40029  20:00:00:25:b5:00:00:78 20:00:00:25:b5:00:00:68

fc1/30           100   0xa4002c  20:00:00:25:b5:00:00:56 20:00:00:25:b5:00:00:46

fc1/30           100   0xa4002d  20:00:00:25:b5:00:00:75 20:00:00:25:b5:00:00:65

fc1/30           100   0xa40030  20:00:00:25:b5:00:00:53 20:00:00:25:b5:00:00:43

fc1/30           100   0xa40033  20:00:00:25:b5:00:00:61 20:00:00:25:b5:00:00:5b

fc1/31           100   0xa400ef  50:06:01:60:3e:a0:13:d5 50:06:01:60:be:a0:13:d5

fc1/32           100   0xa401ef  50:06:01:68:3e:a0:13:d5 50:06:01:60:be:a0:13:d5


Total number of flogi = 41.


N5K-Primary_SW#

-------------------------------------------------------------------------------------------------------------------------------------------------------------


N5K-Secondary_SW# show flogi database

--------------------------------------------------------------------------------

INTERFACE        VSAN    FCID           PORT NAME               NODE NAME

--------------------------------------------------------------------------------

fc1/29           101   0x3c0000  20:1f:54:7f:ee:a0:9a:80 20:65:54:7f:ee:a0:9a:81

fc1/29           101   0x3c0002  20:00:00:25:b5:00:00:4e 20:00:00:25:b5:00:00:7d

fc1/29           101   0x3c0003  20:00:00:25:b5:00:00:4d 20:00:00:25:b5:00:00:0e

fc1/29           101   0x3c0005  20:00:00:25:b5:00:00:2c 20:00:00:25:b5:00:00:1c

fc1/29           101   0x3c0008  20:00:00:25:b5:00:00:69 20:00:00:25:b5:00:00:49

fc1/29           101   0x3c000a  20:00:00:25:b5:00:00:28 20:00:00:25:b5:00:00:08

fc1/29           101   0x3c000b  20:00:00:25:b5:00:00:47 20:00:00:25:b5:00:00:27

fc1/29           101   0x3c000e  20:00:00:25:b5:00:00:25 20:00:00:25:b5:00:00:05

fc1/29           101   0x3c000f  20:00:00:25:b5:00:00:44 20:00:00:25:b5:00:00:24

fc1/29           101   0x3c0010  20:00:00:25:b5:00:00:63 20:00:00:25:b5:00:00:43

fc1/29           101   0x3c0012  20:00:00:25:b5:00:00:42 20:00:00:25:b5:00:00:22

fc1/29           101   0x3c0021  20:00:00:25:b5:00:00:0f 20:00:00:25:b5:00:00:7e

fc1/29           101   0x3c0022  20:00:00:25:b5:00:00:3e 20:00:00:25:b5:00:00:6d

fc1/29           101   0x3c0024  20:00:00:25:b5:00:00:6c 20:00:00:25:b5:00:00:5c

fc1/29           101   0x3c0026  20:00:00:25:b5:00:00:6a 20:00:00:25:b5:00:00:4a

fc1/29           101   0x3c0027  20:00:00:25:b5:00:00:0a 20:00:00:25:b5:00:00:79

fc1/29           101   0x3c0029  20:00:00:25:b5:00:00:58 20:00:00:25:b5:00:00:38

fc1/29           101   0x3c002c  20:00:00:25:b5:00:00:36 20:00:00:25:b5:00:00:16

fc1/29           101   0x3c002e  20:00:00:25:b5:00:00:74 20:00:00:25:b5:00:00:54

fc1/29           101   0x3c0033  20:00:00:25:b5:00:00:51 20:00:00:25:b5:00:00:2f

fc1/30           101   0x3c0001  20:00:00:25:b5:00:00:6f 20:00:00:25:b5:00:00:5e

fc1/30           101   0x3c0004  20:00:00:25:b5:00:00:0d 20:00:00:25:b5:00:00:5f

fc1/30           101   0x3c0006  20:00:00:25:b5:00:00:3b 20:00:00:25:b5:00:00:1b

fc1/30           101   0x3c0007  20:00:00:25:b5:00:00:5a 20:00:00:25:b5:00:00:3a

fc1/30           101   0x3c0009  20:00:00:25:b5:00:00:09 20:00:00:25:b5:00:00:68

fc1/30           101   0x3c000c  20:00:00:25:b5:00:00:66 20:00:00:25:b5:00:00:46

fc1/30           101   0x3c000d  20:00:00:25:b5:00:00:06 20:00:00:25:b5:00:00:65

fc1/30           101   0x3c0011  20:00:00:25:b5:00:00:03 20:00:00:25:b5:00:00:4c

fc1/30           101   0x3c0013  20:00:00:25:b5:00:00:71 20:00:00:25:b5:00:00:5b

fc1/30           101   0x3c0020  20:20:54:7f:ee:a0:9a:80 20:65:54:7f:ee:a0:9a:81

fc1/30           101   0x3c0023  20:00:00:25:b5:00:00:2d 20:00:00:25:b5:00:00:6e

fc1/30           101   0x3c0025  20:00:00:25:b5:00:00:7b 20:00:00:25:b5:00:00:2b

fc1/30           101   0x3c0028  20:00:00:25:b5:00:00:39 20:00:00:25:b5:00:00:19

fc1/30           101   0x3c002a  20:00:00:25:b5:00:00:77 20:00:00:25:b5:00:00:57

fc1/30           101   0x3c002b  20:00:00:25:b5:00:00:17 20:00:00:25:b5:00:00:76

fc1/30           101   0x3c002d  20:00:00:25:b5:00:00:55 20:00:00:25:b5:00:00:35

fc1/30           101   0x3c002f  20:00:00:25:b5:00:00:14 20:00:00:25:b5:00:00:73

fc1/30           101   0x3c0031  20:00:00:25:b5:00:00:62 20:00:00:25:b5:00:00:3c

fc1/30           101   0x3c0032  20:00:00:25:b5:00:00:12 20:00:00:25:b5:00:00:6b

fc1/31           101   0x3c00ef  50:06:01:61:3e:a0:13:d5 50:06:01:60:be:a0:13:d5

fc1/32           101   0x3c01ef  50:06:01:69:3e:a0:13:d5 50:06:01:60:be:a0:13:d5


Total number of flogi = 41.


N5K-Secondary_SW#

Correct Answer
Walter Dey Thu, 02/13/2014 - 12:15
User Badges:
  • Red, 2250 points or more
  • Cisco Designated VIP,

    2017 Unified Computing, Storage Networking

Hi Amit


What are the flogi showing up going over fc 1/29 and 1/30 ?


Your problem is clear: it's a routing issue ? how can a initiator pwwn eg. in VSAN 100 decide, on which port he should go Northbound ?

The solution:

Create 2 additional VSAN's, e.g. 102 and 103; 100/101 will be used to reach N5k, 102/103 to reach MDS; you of course need 2 additional vhba's, one in 102, resp 103.

Hopefully you have done your zoning with device-alias (enhanced); then this change will be easy.

Another ugly solution would be to use static ping groups, which is hardly used, a management and scalabilty nightmare, and therefore not recommended.


Good luck

Walter.

Amit Vyas Thu, 02/13/2014 - 13:06
User Badges:

Hi Walter,


Thanks for your reply


I did the same thing what you have mentioned, while doing the troubleshooting I also thought the same the hwo initiator will decide on which port traffic has to be sent


Thanks once again for your reply it really cleared the doubt


Regards,

Amit Vyas

Actions

This Discussion