About Physical Disk Slot Numbers, Physical Device Names, And Logical Device Names - Sun Microsystems Sun Fire V445 Server Administration Manual

Caution – Creating RAID volumes using the on-board controller destroys all data
on the member disks. The disk controller's volume initialization procedure reserves
a portion of each physical disk for metadata and other internal information used by
the controller. Once the volume initialization is complete, you can configure the
volume and label it using format(1M). You can then use the volume in the Solaris
Operating System.
Caution – If a RAID Volume is created using the on-board controller and a disk
drive in the volume set is removed without deleting the RAID Volume, the disk will
not be useable in the Solaris Operating System unless special procedures are
followed. Contact Sun Services if you have removed a disk from a RAID Volume and
cannot reuse the drive.
About Physical Disk Slot Numbers,
Physical Device Names, and Logical
Device Names
In order to perform a disk hot-plug procedure, you must know the physical or
logical device name for the drive that you want to install or remove. If your system
encounters a disk error, often you can find messages about failing or failed disks in
the system console. This information is also logged in the /var/adm/messages
file(s).
These error messages typically refer to a failed hard disk drive by its physical device
name (such as
/devices/pci@1f,700000/scsi@2/sd@1,0
name (such as
c1t1d0
number (0 through 3).
). In addition, some applications might report a disk slot
) or by its logical device
Chapter 6 Managing Disk Volumes 123