3Com VCX V7000, Installation Manual

Page: 440 / 488

438 A
PPENDIX
C: R
EPLACING A
F
AILED
D
ISK ON A
VCX S
ERVER
CAUTION: 3Com strongly recommends that customers change this
password on all VCX servers. Guidelines about other passwords and other
security-related issues can be found in the “VCX Security Guide.”
b Enter these commands:
cd /etc/init.d
./vcx stop
2 Back up the IPMSG database on the running server. For instructions, see
the
IPMSG Operations and System Administration Guide.
3 Stop all VCX processes on the running server.
a Log in as root and enter these commands:
cd /etc/init.d
./vcx stop
4 Restore Intelligent Mirroring for IP Messaging.
a Transfer the IPMSG database backup files (that you saved in a previous
step) to the down server and place them in this directory (you must
first create the directory):
/opt/3comdata/umsdata/backup/DATE/
DATE is the date on which the IP Messaging backup script was run.
The format is mm_dd_yy.
CAUTION: When you use the scp command to copy the database
backup files to the down server, you may see a warning message about a
“man in the middle” attack. This message indicates that the security key
that was associated with the down server has changed, and the running
server does not recognize the down server’s new security key. The change
to the security key is a normal consequence of the disk replacement
process.
To resolve this issue, locate the
known_hosts
file on the running server
(
/opt/home/cworks/.ssh/known_hosts
) and perform one of these
actions:
■
Edit the file, locate the line that contains the IP address of the down
server, and replace the old key with the new key.
■
Edit the file, locate the line that contains the IP address of the down
server and remove that line.
■
Delete the
known_hosts
file. If you use this method, the next time you
try to access any of the other VCX servers using commands such as