probe-scsi-all Device
Naming (OpenBoot)
The output displayed by probe-scsi-all lists
all SCSI devices in the server and provides a basic set of information
about each device. When analyzing the probe-scsi-all output,
look for the following data fields that are different names for
the same device. You must use a specific type of name in different
commands.
|
|
Target |
Each SAS drive is assigned a unique target ID. |
SASDeviceName |
WWN value assigned to a SAS drive by the manufacturer. Oracle Solaris recognizes this
name. |
SASAddress |
WWN value assigned to a SCSI device that is recognized by the OpenBoot firmware. |
PhyNum |
Hexadecimal ID of the controller port that is attached to the target drive. |
VolumeDeviceName (when
a RAID volume is configured) |
WWN value assigned to a RAID volume that is recognized by Oracle Solaris. The
VolumeDeviceName replaces the SASDeviceName of every
SCSI device contained in the RAID volume.
Use the VolumeDeviceName entity to determine
the correct target in a RAID volume, or when the server is configured
with an optional internal RAID HBA controller. |
VolumeWWID (when a
RAID volume is configured) |
WWN-based value assigned to a RAID volume that is recognized by the OpenBoot firmware.
VolumeWWID replaces the SASAddress of every SCSI
device contained in the RAID volume. |
|
At a high level, the WWN mapping process consists of the following
stages:
Identify the physical
location of the hard drive that is to be the target of the operation.
Identify the controller port that is attached to that physical location.
Find the WWN-based device name of the drive attached to that controller port.
Note - Refer to the server's service manual for a description
of the physical drive slot organization.