dak(7)
dak --
Mylex DAC960 Array Controller
Description
The Mylex DAC960 EISA SCSI Disk Array Controllers are high-performance
multiple channel controllers for disk arrays. The dak host adapter driver
provides a Storage Device Interface (SDI)-compliant interface to the
Mylex DAC960 adapter.
NOTE:
The DAC960 EISA adapters are no longer supported by
Mylex.
The supported devices are the PCI-based DAC960P,
PL, PD, PDU and PG.
The Mylex SCSI host adapter driver enables SDI-compliant target drivers
(such as sd01 and st01) to communicate on the SCSI bus with target
controllers and logical units. This allows normal access to mass-storage
devices using standard system interfaces and filesystems.
It is also possible for a user to access the SCSI-bus
subsystem directly by using the driver pass-through interface. This
allows the user to issue sb control blocks directly to a SCSI target
device. To find the appropriate pass-through device to use for a particular
target device, the user should
open(2)
the character special file for the
device in question and then issue the B_GETDEV ioctl. The device value
returned should then be used to create a character special file which,
when
opened, can be used for pass-through (SDI_SEND) ioctl.
ioctl calls
dak supports all of the SDI pass-through
ioctl(2)
commands documented on the
sdi(7)
manual page.
Files
- /usr/include/sys/dak.h
-
- /usr/include/sys/scsi.h
-
- /usr/include/sys/sdi.h
-
- /usr/include/sys/sdi_edt.h
-
- /usr/include/sys/sdi_comm.h
-
- /etc/conf/pack.d/dak/space.c
-
References
adsa(7),
adsc(7),
adse(7),
adss(7),
dpt(7),
ioctl(2),
mcis(7),
sc01(7),
sd01(7),
sdi(7),
st01(7),
sw01(7),
wd7000(7)
Notices
Exercise extreme caution when using the pass-through interface. It
is possible to interfere with normal system I/O and cause hangs if
pass-through is used to an active device. Pass-through should only be used
to a device that is otherwise quiescent.
30 January 1998
© 1998 The Santa Cruz Operation, Inc. All rights reserved.