MC Service Guard Cluster and Package Naming Conventions

[RameshKR]

Hi,

Are there any conventions / restrictions on Cluster / Package names in MCSG.

If so, pl let me know the document i can refer to.

Ramesh KR

[Manaswini]

No,

There is no such naming convention for Cluster and packages. Usually packages are named as per the type of DB or applications will run on Cluster. It's not mandatory.

[Rahul85]

Hi Ramesh,

There is no such rule but please use logical name related to environment.

regards

RC

[Ajin_1]

HI

You have to put as you wish.

[Jonathan Patrizio]

While there are no specific conventions for naming clusters or packages, you should consult the Managing Serviceguard Manual.  For example, it states:

CLUSTER_NAME

The name of the cluster as it will appear in the output of

cmviewcl and other commands, and as it appears in the

cluster configuration file.

The cluster name must not contain any of the following

characters: space, slash (/), backslash (\), and asterisk (*).

NOTE: In addition, the following characters must not be

used in the cluster name if you are using the Quorum Server:

at-sign (@), equal-sign (=), or-sign (|), semicolon (;).

These characters are deprecated, meaning that you should

not use them, even if you are not using the Quorum Server,

because they will be illegal in a future Serviceguard release.

All other characters are legal. The cluster name can contain

up to 39 characters (bytes).

CAUTION: Make sure that the cluster name is unique

within the subnets configured on the cluster nodes; under

some circumstances Serviceguard may not be able to detect

a duplicate name and unexpected problems may result.

In particular make sure that two clusters with the same name

do not use the same Quorum Server; this could result in one

of the clusters failing to obtain the Quorum Server’s

arbitration services when it needs them, and thus failing to

re-form.

Likewise, there is a statement for package_name:

package_name
Any name, up to a maximum of 39 characters, that:
• starts and ends with an alphanumeric character
• otherwise contains only alphanumeric characters or dot (.), dash (-), or underscore (_)
• is unique among package names in this cluster
IMPORTANT: Restrictions on package names in previous Serviceguard releases were less
stringent. Packages whose names do not conform to the above rules will continue to run, but
if you reconfigure them, you will need to change the name; cmcheckconf and cmapplyconf
will enforce the new rules.

It's always worth consulting the manual on precise guidelines for each parameter.