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| How to administer the Device Discovery Layer | ||
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| Prev | Discovering and configuring newly added disk devices | Next |
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| How to administer the Device Discovery Layer | ||
|---|---|---|
| Prev | Discovering and configuring newly added disk devices | Next |
The Device Discovery Layer (DDL) allows dynamic addition of disk arrays. DDL discovers disks and their attributes that are required for Dynamic Multi-Pathing (DMP) operations.
The DDL is administered using the vxddladm utility to perform the following tasks:
List the hierarchy of all the devices discovered by DDL including iSCSI devices.
List all the Host Bus Adapters including iSCSI.
List the ports configured on a Host Bus Adapter.
List the targets configured from a Host Bus Adapter.
List the devices configured from a Host Bus Adapter.
Get or set the iSCSI operational parameters.
List the types of arrays that are supported.
Add support for an array to DDL.
Remove support for an array from DDL.
List information about excluded disk arrays.
List disks that are claimed in the DISKS (JBOD) category.
Add disks from different vendors to the DISKS category.
Remove disks from the DISKS category.
Add disks as foreign devices.
The following sections explain these tasks in more detail.
See the vxddladm(1M) manual page.