Users Guide

Table Of Contents
NOTE: All server groups that exist in SCVMM are listed in OMIMSSC since it is not user-specific. Make sure you have
access to perform any operations on those servers.
Predefined update groups
The description and behavior of the predefined update groups are as follows:
Generic update groupsthis group consists of hosts and unassigned servers that are updated in a single session.
All update groupsthis group consists of all the server groups. Any group present in the OMIMSSC is a member of the all
update groups. This group is of the type generic update group.
Default unassigned server update groupthis group consists of all the unassigned servers that are not part of any other
group. This group is of the type generic update group. The servers are added to the default unassigned server update group
after:
A fresh discovery or rediscovery of bare metal servers.
A synchronization or resynchronization, after it is deleted from SCVMM but present in the OMIMSSC Appliance.
Cluster update groupthis group consists of the Windows Server Failover clusters. If a modular server belongs to a cluster,
then it is added to the cluster update group. If a 12th or 13th generation of Dell PowerEdge modular server is part of cluster,
then the CMC information is also added in the inventory in the Maintenance Center page.
To know about the cluster update group to which a server belongs to, see the Configutation and Deployment page where the
host name and cluster FQDN is displayed for all the servers listed in OMIMSSC.
Host update groupthis group consists of host servers, and updates are applied in a single session, wherein, a single session
is updating all servers within the group at once.
Default host update groupthis group consists of all the discovered hosts that are not part of any other update group. This
group is of the type host update group.
Chassis update groupmodular servers belonging to a chassis and not part of any cluster group are classified as
chassis update group. 12th or 13th generation of PowerEdge servers are discovered along with their CMC information. By
default, a group is created with the naming format, Chassis-Service-tag-of-Chassis-Group. For example, Chassis-
GJDC4BS-Group. If a modular server is deleted from a cluster update group, then the server is added to the chassis update
group along with its CMC information. Even if there are no modular servers in the corresponding chassis update group, since all
modular servers in the chassis are in a cluster update group, the chassis update group continues to exist, but displays only the
CMC information.
Default Non-Windows Host Update groupthis group consists of servers having non-windows OS.
Custom update groups
This group allows you to create, modify, and delete update groups. However, you can add a server into a custom update group
only from Default unassigned update groups and the Default host update groups. After you add a server into a custom
update group, the server is removed from the predefined update group and this server is available only in the custom update
group. To add the servers in custom update group, search for the required servers using their service tag.
NOTE:
If a server is deleted from MSSC, and you synchronize OMIMSSC with enrolled MSSC, the server is removed from
the custom update group and is moved to the appropriate predefined group.
Updating methods
You can apply updates on selected server groups whose hardware is compatible with OMIMSSC.
You can perform the following updates on server groups:
Agent-free staged updatesis staging of firmware updates. The firmware updates that are immediately applicable and
that do not require a restart are applied immediately. The remaining updates that require a system restart are applied at
the time of restarting the server. Updates are performed in batches at the scheduled time by using iDRAC. The batch
size is determined when the update is happening. To check if all the updates are applied, refresh the inventory . The
entire update job fails if the operation fails on even one server.
Agent-free updatesis out of band update with immediate server restart.
Cluster-Aware Updating (CAU)automates the update process by using Windows CAU feature on cluster update
groups to maintain server's availability. For more information about CAU, see Updates using CAU.
Maintenance
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