SPARC: How to Replace an Identical Device on a SCSI Controller

The following procedure uses SCSI disk c1t4d0 as an example of replacing an identical device on a SCSI controller.

Steps

1. Become superuser.

2. Identify the current SCSI configuration.

   # cfgadm -al Ap_Id Type Receptacle Occupant Condition c0 scsi-bus connected configured unknown c0::dsk/c0t0d0 disk connected configured unknown c0::rmt/0 tape connected configured unknown c1 scsi-bus connected configured unknown c1::dsk/c1t3d0 disk connected configured unknown c1::dsk/c1t4d0 disk connected configured unknown

3. Replace a device on the SCSI bus with another device of the same type.

   # cfgadm -x replace_device c1::dsk/c1t4d0 Replacing SCSI device: /devices/sbus@1f,0/SUNW,fas@1,8800000/sd@4,0 This operation will suspend activity on SCSI bus: c1

   1. Type y at the Continue (yes/no)? prompt to proceed.

      I/O activity on the SCSI bus is suspended while the hot-plug operation is in progress.

      Continue (yes/no)? y SCSI bus quiesced successfully. It is now safe to proceed with hotplug operation.

   2. Power off the device to be removed and remove it.

   3. Add the replacement device. Then, power it on.

      The replacement device should be of the same type and at the same address (target and lun) as the device to be removed

   4. Type y at the Enter y if operation is complete or n to abort (yes/no)? prompt.

      Enter y if operation is complete or n to abort (yes/no)? y

4. Verify that the device has been replaced.

   # cfgadm -al Ap_Id Type Receptacle Occupant Condition c0 scsi-bus connected configured unknown c0::dsk/c0t0d0 disk connected configured unknown c0::rmt/0 tape connected configured unknown c1 scsi-bus connected configured unknown c1::dsk/c1t3d0 disk connected configured unknown c1::dsk/c1t4d0 disk connected configured unknown