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HDK Technical Reference

SDI peripheral hot add/remove

SDI hot add/remove is the ability to add and remove SDI peripheral (target) devices from a running system. This feature works with all packages written for any SDI versions, including mounted filesystems, the Veritas Volume Manager, and raw device access through /dev/rdsk and /dev/rmt.

The hotplug feature, which supports adding and removing HBA devices, provides similar functionality for SDI version 4 HBA drivers that use DDI version 8/8mp may also support the

Coding in HBA drivers

To support device hot add/remove, an HBA driver needs to include the following code:

Coding in target drivers

To support device hot add/remove, a target driver needs to include the following code:

Administrative interface

The administrative interface for SDI hot add/remove is provided in two commands:


sdiadd(1M)
add new SDI peripheral device to the kernel.

sdirm(1M)
remove SDI peripheral device from the kernel.

Design limitations

Note the following limitations when using the SDI hot add/remove feature:


© 2005 The SCO Group, Inc. All rights reserved.
OpenServer 6 and UnixWare (SVR5) HDK - June 2005