Change Secondary Subnet - EMC VNX VG2 Setup Manual

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Change IP Addresses

Change secondary subnet

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180 EMC VNX VG2/VG8 Gateway Configuration Setup Guide
Perform the following steps to change the secondary subnet values. Use the values
from Table 8 on page 175
completed successfully before starting the next step:
1. Log in to the primary Control Station as root.
2. Enter the following command to mount the nas folder:
# mount /nas
3. Check the VG2/VG8 system status by using the nas_checkup command:
# /nas/bin/nas_checkup
4. Make a backup directory for the old configuration files by entering:
# mkdir /root/BACKUP
5. Copy the old configuration files to the backup directory by entering:
# cp /etc/hosts /root/BACKUP
# cp /etc/sysconfig/iptables-config /root/BACKUP
# cp /etc/sysconfig/network-scripts/ifcfg-eth* /root/BACKUP
# cp /nas/site/nas_parm /root/BACKUP
# cp /nas/site/httpd_dic.conf /root/BACKUP
# cp /nas/site/slot_parm /root/BACKUP
# cp -ip /nas/site/sp_info /root/BACKUP
# cp -R /nas/server/slot_2/ /root/BACKUP/
# cp -R /nas/server/slot_3/ /root/BACKUP/
CAUTION
Stopping the NAS service will disrupt service of the VG2/VG8 system.
Processes initiated by the Control Station or commands run from the /nas
directory will be inhibited. Get customer permission before stopping the NAS
service.
6. Enter the following commands to stop the NAS service:
# cd /
# /sbin/service nas stop
If this command fails, reboot the Control Station and try again.
7. Enter the following mount commands:
# mount /nbsnas
# mount /nas
# mount /nas/dos
8. Configure the eth2:1 interface:
a. Bring down eth2:1, by typing:
# /sbin/ifdown eth2:1
b. Edit the /etc/sysconfig/network-scripts/ifcfg-eth2:1 file by using vi editor to
replace all instances of the old subnet with the new subnet. This includes the
IP, network, and broadcast lines of the file.
for the new subnet values. Verify that each step has