Incoming Ping EMC with Servers

post output from "sever_ifconfig server_2 -all" and "server_route server_2 -l"

Typical causes for this:

- VLAN or subnet config incorrect on the VNX or the switch or the client

- Mixed up cables

- Routing wrong or missing default route on the VNX

The Celerra/VNX doesn’t use the routing table when responding to a ping – it uses reflect mode (by default) which sends the packet back through the same interface and MAC that it came from.

That’s why often even with a misconfigured network the VNX/Celerra will respond to a ping but the other way doesn’t work.

Also remember that control station and data movers are separate objects each with its own interface config and routing table.

If you need to troubleshoot the data mover networking you need to use the server_ping, server_route, … command.

Rainer

With server_route server_2 -l output next:

default 192.168.114.254 0.0.0.0 nfs_svc_interface

net 192.168.114.0 192.168.114.201 255.255.255.0 nfs_svc_interface

net 128.221.253.0 128.221.253.2 255.255.255.0 el31

net 128.221.252.0 128.221.252.2 255.255.255.0 el30

host 127.0.0.1 127.0.0.1 255.255.255.255 loop

The name of my data is server_2 organizers

In making the server_route server_2-l returns me this:

server_route server_2 -l

server_2 :

default 192.168.114.254 0.0.0.0 nfs_svc_interface

net 192.168.114.0 192.168.114.201 255.255.255.0 nfs_svc_interface

net 128.221.253.0 128.221.253.2 255.255.255.0 el31

net 128.221.252.0 128.221.252.2 255.255.255.0 el30

host 127.0.0.1 127.0.0.1 255.255.255.255 loop

Sorry don´t answer:

server_ping server_2 192.168.114.205

server_2 :

Error 6: server_2 : No such device or address

no answer from 192.168.114.205

But if I run it on command:

  server_2 server_ping 192.168.14.201 192.168.14.205
server_2: 192,168,114,201 is alive, time = 0 ms

I said to respond correctly

Thats a strange error – did you rename your data movers ?

What does nas_server –l say ?

can you ping the default gateway ?

server_ping server_2 -interface nfs_svc_interface 192.168.114.254

And the configuration with command server_ifconfig server_2 -all is:

server_2 :

el30 protocol=IP device=mge0

         inet=128.221.252.2 netmask=255.255.255.0 broadcast=128.221.252.255

        UP, Ethernet, mtu=1500, vlan=0, macaddr=0:60:16:1e:3b:93 netname=localhost

el31 protocol=IP device=mge1

         inet=128.221.253.2 netmask=255.255.255.0 broadcast=128.221.253.255

        UP, Ethernet, mtu=1500, vlan=0, macaddr=0:60:16:1e:3b:92 netname=localhost

loop6 protocol=IP6 device=loop

         inet=::1 prefix=128

        UP, Loopback, mtu=32768, vlan=0, macaddr=0:0:0:0:0:0 netname=localhost

loop protocol=IP device=loop

         inet=127.0.0.1 netmask=255.0.0.0 broadcast=127.255.255.255

        UP, Loopback, mtu=32768, vlan=0, macaddr=0:0:0:0:0:0 netname=localhost

isci_svc_interface protocol=IP device=trk1

         inet=192.168.114.202 netmask=255.255.255.0 broadcast=192.168.114.255

        UP, Ethernet, mtu=1500, vlan=5, macaddr=0:60:16:1f:6b:e

nfs_svc_interface protocol=IP device=trk0

         inet=192.168.114.201 netmask=255.255.255.0 broadcast=192.168.114.255

        UP, Ethernet, mtu=1500, vlan=5, macaddr=0:60:16:1f:6b:10

is VLAN 5 correct, is the switch port tagged for VLAN 5 as well ?  Is 192.168.114.254 correct default gateway ?

This is the result:

server_ping server_2 -interface nfs_svc_interface 192.168.114.254

server_2 :

Error 6: server_2 : No such device or address

no answer from 192.168.114.254

No ping the default gateway !!!!

Yes, Ports are configurated correctly in switch.

And 192.168.114.254 is the default gateway yes too !!!!

Hi Rainer,

The interface name is correct and the DM name is server_2.

I don´t Know it´s possible this failed !!!!

Thanks

Dynamox your’re right – I just never noticed that error 6 before

post output form this command:

server_sysconfig server_2 -virtual -info trk0