pln - SPARCstorage Array SCSI Host Bus Adapter Driver
The pln Host Bus Adapter (HBA) driver is a SCSA compliant
nexus driver which supports the SPARC Storage Array. The
SPARC Storage Array is a disk array device which supports
multiple disk drives. The drives are located on several
SCSI busses within the SPARC Storage Array. A SPARC
microprocessor controls the SPARC Storage Array. Non-
volatile RAM is used as a disk cache. The SPARC Storage
Array interfaces to the host system using Fibre Channel. An
SBus card called the SOC card (see soc(7D)) connects the
Fibre Channel to the host system.
The pln driver interfaces with the SOC device driver,
soc(7D), and the SPARC Storage Array SCSI target driver,
The pln driver supports the standard functions provided by
the SCSA interface. The driver supports tagged and untagged
queuing and auto request sense.
Note: The SPARCstorage Array is obsolete. Support for this
device will be removed in a future version of Solaris.
ELF kernel module
prtconf(1M), ssaadm(1M), driver.conf(4), soc(7D), ssd(7D)
Writing Device Drivers
ANSI Small Computer System Interface-2 (SCSI-2)
The messages described below may appear on the system con-
sole and in the system log.
This following messages indicate the pln driver was unable
to attach to the device. These messages are preceded by
"pln%d", where "%d" is the instance number of the pln con-
Failed to alloc soft state
Driver was unable to allocate space for the internal
state structure. Driver did not attach to device.
SCSI devices will be inaccessible.
Bad soft state
Driver requested an invalid internal state structure.
Driver did not attach to device. SCSI devices will be
Unable to attach
Driver was unable to attach to the hardware for some
reason that may be printed. SCSI devices will be inac-
Man(1) output converted with