Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
5.
Log off and test SSH access using your own key
If you cannot access the VCS with your key, you may need to connect as
root
and restart the SSH daemon
with
/etc/init.d/sshd restart
Enabling Maintenance Mode
Maintenance mode is typically used when you need to upgrade or take out of service a VCS peer that is part of a
cluster. It allows the other cluster peers to continue to operate normally while the peer that is in maintenance mode is
upgraded or serviced.
cluster. It allows the other cluster peers to continue to operate normally while the peer that is in maintenance mode is
upgraded or serviced.
Putting a peer into maintenance mode provides a controlled method of stopping any further registrations or calls from
being managed by that peer:
being managed by that peer:
■
Standard VCS sessions:
—
New calls and registrations will be handled by another peer in the cluster.
—
Existing registrations are allowed to expire and they then should re-register to another peer (see VCS
Cluster Creation and Maintenance Deployment Guide for more information about endpoint configuration
and setting up DNS SRV records).
Cluster Creation and Maintenance Deployment Guide for more information about endpoint configuration
and setting up DNS SRV records).
—
Existing calls will continue until the call is terminated. If necessary, you can manually remove any calls on
this peer that do not clear automatically by going to Status > Calls, selecting the check box next to the calls
you want to terminate and clicking Disconnect (note that SIP calls may not disconnect immediately).
this peer that do not clear automatically by going to Status > Calls, selecting the check box next to the calls
you want to terminate and clicking Disconnect (note that SIP calls may not disconnect immediately).
■
Unified CM mobile and remote access sessions:
—
Any existing calls passing through that VCS will be dropped.
—
Jabber clients will failover automatically and re-register through another peer in the cluster.
—
Clients running TC software will not failover automatically will have to be restarted.
To maintain capacity, we recommend that you only enable maintenance mode on one peer at a time.
To enable maintenance mode:
1.
Log in the relevant peer.
2.
Go to the Maintenance mode page (Maintenance > Maintenance mode).
3.
Set Maintenance mode to On.
4.
Click Save and click OK on the confirmation dialog.
Note that:
■
An alarm is raised while the peer is in maintenance mode.
■
You can monitor the Resource usage page (Status > System > Resource usage) to check how many
registrations and calls are currently being handled by that peer.
registrations and calls are currently being handled by that peer.
■
Maintenance mode is automatically disabled if the peer is restarted.
About Upgrading Software Components
You can install new releases of the VCS software components on your existing hardware. Component upgrades can
be performed in one of two ways:
be performed in one of two ways:
■
- this is the recommended process.
■
(SCP/PSCP).
This guide describes how both of these methods are used to perform upgrades. You can also upgrade the System
platform component using Cisco TMS (see the Cisco TMS documentation for more information).
platform component using Cisco TMS (see the Cisco TMS documentation for more information).
■
We recommended that you upgrade VCS components while the system is inactive.
■
From X8.8 onwards, the VCS release packages are signed to give you confidence in their integrity.
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Cisco TelePresence Video Communication Server Administrator Guide
Maintenance