Appendix A - System Reference
114
7700 Series Flash Storage Platform Installation Guide 7.6.3.x
530-0267-00 Rev 02
Determining IP Addresses of Internal Memory
Gateways (Both Unknown)
If both Memory Gateway IP addresses are unknown, it is necessary to power down one Memory
Gateway to properly identify which Memory Gateway is which. The following procedure powers
down mg-b.
1.
Make sure mg-a is powered on and mg-b is powered off by running the following commands
on the ACM master node:
2.
Issue the following command and then verify that mg-a is drawing current (>0) and mg-b is
not:
3.
Perform a broadcast ping to 169.254.255.255 from the ACM CLI, for example:
4.
Examine the output of the above command and determine the IP address that is neither
169.254.1.10 (acm-a) nor 169.254.1.11. The remaining IP address is the address for mg-a.
5.
Set up the host definition for mg-a using the following commands:
Note:
Pressing the Tab key after the first command will auto-complete the command with any
existing IP address assigned to that host. If none is present, the first command is unnecessary.
6.
Verify the host definition by pinging mg-a directly using its hostname:
7.
Power on mg-b as follows:
8.
Wait 5 minutes for mg-b to boot up completely. Once booted, repeat steps 2-5 above to
determine the IP address of mg-b. In this case, when looking at the output of the ping
command, mg-b’s address will be the address that is not 169.254.1.10, 169.254.1.11 or the
previously-discovered mg-a address.
9.
Save the host definitions by running the
write mem
command.
array module id mg-a enable
no array module id mg-b enable
show array module type mg detail
violin-acma [violin: master] # ping -b -w1 169.254.255.255
WARNING: pinging broadcast address
PING 169.254.255.255 (169.254.255.255) 56(84) bytes of data.
64 bytes from 169.254.1.10: icmp_seq=1 ttl=64 time=0.061 ms
64 bytes from 169.254.1.11: icmp_seq=1 ttl=64 time=0.102 ms (DUP!)
64 bytes from 169.254.42.198: icmp_seq=1 ttl=64 time=0.115 ms (DUP!)
64 bytes from 169.254.1.10: icmp_seq=2 ttl=64 time=0.036 ms
64 bytes from 169.254.1.11: icmp_seq=2 ttl=64 time=0.058 ms (DUP!)
64 bytes from 169.254.42.198: icmp_seq=2 ttl=64 time=0.099 ms (DUP!)
no ip host mg-a <tab>
ip host mg-a <ip address>
ping mg-a
array module id mg-b enable