OSIM Boot Server › Multiple Boot Servers › Configure Boot Server Behavior with Common Configuration

Configure Boot Server Behavior with Common Configuration

The following configuration policy parameters under the DSM, ScalabilityServer, OSIM, ManagedPC, Server node change the behavior of a boot server with respect to other boot servers in the IP subnetwork:

Use ACL

Indicates whether the boot server uses an Answer Control List (ACL). Valid values are:

0

If Use ACL is set to “0”, the boot server must be the only boot server in its IP subnetwork because it answers all PXE requests immediately.

1

If Use ACL is set to “1”, the boot server answers PXE requests of assigned targets only, that is, the boot server uses an ACL.

PXE requests from other target machines will be answered only after a certain number of retries has been seen and after a certain amount of time has elapsed since the first request.

2

If Use ACL is set to “2”, the boot server answers PXE requests of assigned targets only, that is, the boot server uses an ACL, but it does not answer to unknown targets.

Default: “1”

Discovery retries before answer

Number of retries before a boot server sends a default reply to the PXE request of a target not assigned to it.

Limits: “1” to “4”

Default: “3”

Note: Only evaluated if "Use ACL" is “1”.

Discovery timeout before answer

Number of seconds to wait before a boot server sends a default reply to the PXE request of a target not assigned to it.

Limits: “3” to “56”

Default: “10”

Note: Only evaluated if "Use ACL" is “1”.

The following table shows corresponding DiscoveryRetriesBeforeAnswer and DiscoveryTimeoutBeforeAnswer values:

Any of the boot servers in an IP subnetwork can take responsibility for a PXE target. Therefore, it is recommended you store the needed OS and boot images on any of the boot servers in the subnetwork.