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

SCSI disk c1t4d0 provides an example of replacing an identical device on a SCSI controller.

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 Continue (yes/no)? y SCSI bus quiesced successfully. It is now safe to proceed with hotplug operation. Enter y if operation is complete or n to abort (yes/no)? y

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

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

   2. Power off the device to be removed and remove it. Add the replacement device, which should be of the same type and at the same address (target and lun) as the device to be removed. Then power it on.

   3. Type y at the Enter y if operation is complete or n to abort (yes/no)? prompt after the device has been replaced.

4. Verify 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