I will be moving VNX to another location and need to know how to change IP addresses. Please provide procedure.
Also, the servers and cisco mds switches IP address will also be changing, what effect will this have on the VNX? Any additional changes I need to make?
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This procedure describes how to change the public IP addresses of a VNX for Block series system after installation. This procedure was originally spun from Primus emc64540.
Before beginning this procedure, ensure that the VNX system is at VNX OE for Block version 5.30 or later.
If the array to be changed is part of a storage domain, you must remove it from the domain before proceeding. If the array to be changed is the domain master, assign another array to that role before continuing.
If this is the only array in a storage domain, it is NOT necessary to destroy the domain prior to changing the IP address.
Check that all hosts have dual-Fibre connectivity and that failover software is working correctly.
Before beginning, you should decide which of your VNX System IP addressing values are going to be changed. If you are changing the IP values, you must determine whether they will be changed from one physical network address, to another or simply changing to values within the same network. Changing IP values from one physical network to another physical network requires more steps than if simply changing IP address values from one address to another address within the same physical network structure.
Once the necessary changes have been determined, then you can perform the appropriate actions from the procedure to apply the changes.
Determine which of the following task heads best represents the type of IP address modification you require. There are 3 options (tasks) that can be used to change the IP address on VNX or CLARiiON Block array. The first 2 methods do require customer network access. Option 3 does not require customer network access.
If it is a simple IP address change you can use naviseccli. This method does Not reboot the SPs if you reset the IP address. It simply restarts the Management Server. If doing this for both SPs, you will need to run this command for each Storage Processor.
C:\Users\Admin>naviseccli -h <existing SP-IP address> -user <username> -password <password> –scope 0 networkadmin -set -address <new SP-IP address>
Changing the IPv4 Address on SP A, Port 0, Virtual Port 0 from 10.241.xxx.xxx to
This operation will cause a management server restart!
Do you wish to continue? (y/n) y
naviseccli -set [-ipv4 [-address <address>] [-subnetmask <subnetmask>] [-gateway <gateway-IPaddress>] ]
Another easy method is to navigate to the SP IP address/Setup page. Note that you will need the Login and Password info for this array.
When there is no customer network access available, follow these steps:
You may need to rejoin or recreate the storage domain if it was destroyed.
If you do not remove the security first, it can cause problems with security (or, at least. it used to in older code revisions) and you may end up locked out of the SPs and have to resort to serial connections and EMC Technical Support assistance to forcibly destroy the security.
Test the IP address values of the Storage Processors:
I see some problems with these instructions: In these steps, you change the IP address and tell it to immediately restart management services. That will only work if you're still on the same subnet, because otherwise the default gateway will now be wrong and you will lose connectivity to the SP. This also doesn't state if after changing the gateway and subnet the system prompts for a reboot. It would be better to tell it *not* to restart mgmt services until after everything is set.
This however also doesn't address the "Peer IP" field (of the other SP) which the web method does. Hopefully this info plays no role in trespassing LUNs because with the web method, the entire SP is rebooted.
Can we apply a single command to change both IP and DG? The subnet mask 255.255.255.0 will be same for both old and new network.
naviseccli -h x.x.x.x -user admin -password myPass -scope 0 networkadmin -set -address y.y.y.y -gateway y.y.y.y
You want to set the IP address, netmask and gateway for the new setting all at the same time. Once they are all set then your SP will reboot to apply the new settings.
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I I understood correctly,
c:> Naviseccli -h old_IP-SPA networkadmin -set -address new-ip-spa -subnetmask 255.255.255.0 -gateway new-gateway
Perform the above for SP-B, am I correct?