Sun Microsystems Sun Ultra 450, Руководство пользователя

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CHAPTER
4
Mapping Between Logical and Physical
Device Names
This chapter contains procedures for translating between the various logical and
physical names used to identify internal disk drives in a Sun Ultra 450 workstation
or Ultra Enterprise 450 server running the Solaris 7 operating environment.
Overview
Both the Sun Ultra 450 workstation and the Ultra Enterprise 450 server can
accommodate up to 20 internal UltraSCSI disk drives. Each drive is labeled with a
disk slot number between 0 and 19.
In order to perform a disk hot-plug procedure, you must know the slot number of
the faulty disk (0 through 19) and its logical device name (for example,
c2t3d0
). If
you know the disk slot number, it is possible to determine the logical device name,
and vice versa. It is also possible to determine both the disk slot number and the
logical device name if you know the physical device name (such as
/devices/pci@6,4000/scsi@4,1/sd@3,0
). Physical device names are typically
provided in SCSI error messages generated by software.
This chapter provides procedures for:
4
Mapping from a SCSI error message to a disk slot number and UNIX logical
device name
4
Mapping from a UNIX logical device name to a disk slot number
4
Mapping from a disk slot number to a UNIX logical device name
33