SCSI Hot Swap ManagerThis task was known as ″SCSI Device Identification and Removal″ or ″Identify and Remove Resources″ inprevious releases. This task allows the user to identify, add, remove, and replace a SCSI device in asystem unit that uses a SCSI Enclosure Services (SES) device. The following functions are available:v List the SES Devicesv Identify a Device Attached to an SES Devicev Attach a Device to an SES Devicev Replace/Remove a Device Attached to an SES Devicev Configure Added/Replaced DevicesThe List the SES Devices function lists all the SCSI hot-swap slots and their contents. Status informationabout each slot is also available. The status information available includes the slot number, device name,whether the slot is populated and configured, and location.The Identify a Device Attached to an SES Device function is used to help identify the location of adevice attached to an SES device. This function lists all the slots that support hot swap that are occupiedor empty. When a slot is selected for identification, the visual indicator for the slot is set to the Identifystate.The Attach a Device to an SES Device function lists all empty hot-swap slots that are available for theinsertion of a new device. After a slot is selected, the power is removed. If available, the visual indicatorfor the selected slot is set to the Remove state. After the device is added, the visual indicator for theselected slot is set to the Normal state, and power is restored.The Replace/Remove a Device Attached to an SES Device function lists all populated hot-swap slotsthat are available for removal or replacement of the devices. After a slot is selected, the device populatingthat slot is Unconfigured; then the power is removed from that slot. If the Unconfigure operation fails, it ispossible that the device is in use by another application. In this case, the customer or system administratormust be notified to quiesce the device. If the Unconfigure operation is successful, the visual indicator forthe selected slot is set to the Remove state. After the device is removed or replaced, the visual indicator, ifavailable for the selected slot, is set to the Normal state, and power is restored.Note: Before you remove the device, be sure that no other host is using it.The Configure Added/Replaced Devices function runs the configuration manager on the parent adaptersthat had child devices added or removed. This function ensures that the devices in the configurationdatabase are configured correctly.Standalone Diagnostics has restrictions on using the SCSI Hot Plug Manager. For example:v Devices being used as replacement devices must be exactly the same type of device as the devicebeing replaced.v New devices may not be added unless a device of the same FRU part number already exists in thesystem, because the configuration information for the new device is not known after the StandaloneDiagnostics are booted.You can run this task directly from the command line. See the following command syntax:diag -d device-T"identifyRemove"ORdiag [-c] -d device -T"identifyRemove -a [identify|remove]"Flag Description-a Specifies the option under the task.-c Run the task without displaying menus. Only command line prompts are used. This flag is onlyapplicable when running an option such as identify or remove.-d Indicates the SCSI device.Chapter 7. Introducing Tasks and Service Aids 115
