it depends if arp-proxy was enabled, if you have access to the control station you can look in /etc/hosts

Yes system was powered up correctly and the san side is working correctly.  I get this message on the control station "IRCMEMC01 EMCServer: ReportEvent: NBS device(s) unavailable" a few minutes after it has booted.

I have waited several hours but no luck.  I thought it may be something to do with the registered connections between the DMs and the SPs henc my question on ip addresses.

try again in 10-15 minutes

/etc/hosts listed below.  Still not sure what should be used, I’ve tried 128.221.252.1 and 128.221.252.2 but can’t get /nbsnas to mount and nas services do not start when cs is booted.

# Do not remove the following line, or various programs

# that require network functionality will fail.

1. 127.0.0.1 localhost.localdomain   localhost
2. 128.221.254.100 emcnas_ipmi
3. 128.221.254.101 emcnasotherIPMICS_i3

# Internal DART Server Primary Network

1. 128.221.252.1   server_1 # DART_data_mover_1
2. 128.221.252.2   server_2 # DART_data_mover_2
3. 128.221.252.3   server_3 # DART_data_mover_3
4. 128.221.252.4   server_4 # DART_data_mover_4
5. 128.221.252.5   server_5 # DART_data_mover_5
6. 128.221.252.6   server_6 # DART_data_mover_6
7. 128.221.252.7   server_7 # DART_data_mover_7
8. 128.221.252.8   server_8 # DART_data_mover_8
9. 128.221.252.9   server_9 # DART_data_mover_9
10. 128.221.252.10  server_10 # DART_data_mover_10
11. 128.221.252.11  server_11 # DART_data_mover_11
12. 128.221.252.12  server_12 # DART_data_mover_12
13. 128.221.252.13  server_13 # DART_data_mover_13
14. 128.221.252.14  server_14 # DART_data_mover_14
15. 128.221.252.15  server_15 # DART_data_mover_15
16. 128.221.252.16  server_16 # DART_data_mover_16

# Internal Management Switch Primary Network

1. 128.221.252.50  mgmt_2_3 # ENCLOSURE-0_MGMT_A
2. 128.221.252.51  mgmt_4_5 # ENCLOSURE-1_MGMT_A
3. 128.221.252.52  mgmt_6_7 # ENCLOSURE-2_MGMT_A
4. 128.221.252.53  mgmt_8_9 # ENCLOSURE-3_MGMT_A

# Internal UPS Primary Network

1. 128.221.252.90  emcnasUPS_i0 # UPS_0
2. 128.221.252.100 emcnas_i0 # C-S_Internal_NW_0
3. 128.221.252.101 emcnasotherCS_i0

# Internal DART Server Backup Network

1. 128.221.253.1   server_1b # DART_data_mover_1
2. 128.221.253.2   server_2b # DART_data_mover_2
3. 128.221.253.3   server_3b # DART_data_mover_3
4. 128.221.253.4   server_4b # DART_data_mover_4
5. 128.221.253.5   server_5b # DART_data_mover_5
6. 128.221.253.6   server_6b # DART_data_mover_6
7. 128.221.253.7   server_7b # DART_data_mover_7
8. 128.221.253.8   server_8b # DART_data_mover_8
9. 128.221.253.9   server_9b # DART_data_mover_9
10. 128.221.253.10  server_10b # DART_data_mover_10
11. 128.221.253.11  server_11b # DART_data_mover_11
12. 128.221.253.12  server_12b # DART_data_mover_12
13. 128.221.253.13  server_13b # DART_data_mover_13
14. 128.221.253.14  server_14b # DART_data_mover_14
15. 128.221.253.15  server_15b # DART_data_mover_15
16. 128.221.253.16  server_16b # DART_data_mover_16

# Internal Management Switch Backup Network

1. 128.221.253.50  mgmt_2_3b # ENCLOSURE-0_MGMT_B
2. 128.221.253.51  mgmt_4_5b # ENCLOSURE-1_MGMT_B
3. 128.221.253.52  mgmt_6_7b # ENCLOSURE-2_MGMT_B
4. 128.221.253.53  mgmt_8_9b # ENCLOSURE-3_MGMT_B

# Internal UPS Backup Network

1. 128.221.253.90  emcnasUPS_i1 # UPS_1
2. 128.221.253.100 emcnas_i1 # C-S_Internal_NW_1
3. 128.221.253.101 emcnasotherCS_i1
4. 139.68.244.147  MXTJMFGEMC01.bose.com MXTJMFGEMC01
5. 10.73.21.25 IRCMEMC01.bose.com      IRCMEMC01
6. 10.73.21.40 A_APM00080400300 SPA # CLARiiON SP
7. 10.73.21.41 B_APM00080400300 SPB # CLARiiON SP

looks like SPA and SPB can be reached on your external network: 10.73.21.40 and  10.73.21.41.  NAS service typically starts in 10-15 minutes after power up. Was the proper power up procedure followed ?

No – I don’t think it has anything to do with the SP

The NBS service is running on the data movers and providing config data to the control station via the internal network.

I would power cycle the data movers, wait a while and then reboot the control station

If the problem still persists open a service request