The format utility automatically configures SCSI disk drives even if that specific type of drive is not listed in the /etc/format.dat file. This feature enables you to format, create slices for, and label any disk driver that is compliant with the SCSI-2 specification for disk device mode sense pages.
Other options for adding disks are:
If you are adding a SCSI disk, you might to try the format utility's automatic configuration feature. For more information, see Automatically Configuring SCSI Disk Drives.
You might try hot-plugging a PCI, SCSI, or USB disk. For more information, see Chapter 26, Managing Devices (Tasks).
The following steps are involved in configuring a SCSI drive by using automatic configuration:
Shutting down the system
Attaching the SCSI disk drive to the system
Turning on the disk drive
Performing a reconfiguration boot
Using the format utility to automatically configure the SCSI disk drive
After the reconfiguration boot, invoke the format utility. The format utility will attempt to configure the disk and, if successful, alert the user that the disk was configured. For step-by-step instructions on configuring a SCSI disk drive automatically, see How to Automatically Configure a SCSI Drive.
Here's an example of a partition table for a 1.3-Gbyte SCSI disk drive that was displayed by the format utility.
Part Tag Flag Cylinders Size Blocks 0 root wm 0 - 96 64.41MB (97/0/0) 1 swap wu 97 - 289 128.16MB (193/0/0) 2 backup wu 0 - 1964 1.27GB (1965/0/0) 6 usr wm 290 - 1964 1.09GB (1675/0/0) |
For more information on using SCSI automatic configuration, see Chapter 35, The format Utility (Reference).
Become superuser or equivalent role.
Create the /reconfigure file that will be read when the system is booted.
# touch /reconfigure |
Shut down the system.
# shutdown -i0 -gn -y |
-in |
Brings the system down to init level 0, the power-down state. |
-g30 |
Notifies logged-in users that they have n seconds before the system begins to shut down. |
-y |
Specifies that the command should run without user intervention. |
The ok prompt is displayed after the system is shut down.
Turn off the power to the system and all external peripheral devices.
Make sure that the disk you are adding has a different target number than the other devices on the system.
You will often find a small switch located at the back of the disk for this purpose.
Connect the disk to the system and check the physical connections.
Refer to the disk's hardware installation guide for installation details.
Turn on the power to all external peripherals.
Turn on the power to the system.
The system boots and displays the login prompt.
Log back in as superuser or assume an equivalent role.
Invoke the format utility and select the disk that you want to configure automatically.
# format Searching for disks...done c1t0d0: configured with capacity of 1002.09MB AVAILABLE DISK SELECTIONS: 0. c0t1d0 <SUN1.05 cyl 2036 alt 2 hd 14 sec 72> /iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@1,0 1. c0t3d0 <SUN1.05 cyl 2036 alt 2 hd 14 sec 72> /iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@3,0 Specify disk (enter its number): 1 |
Type yes to the prompt to label the disk.
Typing y causes the disk label to be generated and written to the disk by SCSI automatic configuration.
Disk not labeled. Label it now? y |
Verify the disk label.
format> verify |
format> q |