CPQARY3(4D) Devices CPQARY3(4D)

NAME

cpqary3 - provides disk and SCSI tape support for HP Smart Array
controllers

DESCRIPTION

The cpqary3 module provides low-level interface routines between the
common disk I/O subsystem and the HP SMART Array controllers. The
cpqary3 driver provides disk and SCSI tape support for the HP Smart
Array controllers.

Please refer to the cpqary3 release notes, for the supported HP Smart
Array Controllers and Storage boxes.

Each controller should be the sole initiator on a SCSI bus. Auto
configuration code determines if the adapter is present at the
Configured address and what types of devices are attached to it.

CONFIGURATION

Use the Array Configuration Utility to configure the controllers.
Each controller can support up to 32 logical volumes. In addition,
each controller supports up to a maximum of 28 connected SCSI tape
drives. With 1.90 and later versions of cpqary3 driver, HP Smart
Array SAS controllers, having Firmware Revision 5.10 or later, will
support 64 logical drives. This firmware also supports Dual Domain
Multipath configurations.

The driver attempts to initialize itself in accordance with the
information found in the configuration file,
/kernel/drv/cpqary3.conf.

New component - hmaeventd which logs the storage events onto console
and to the Integrated Management Log is made a part of HPQhma 5.0.0
package, which is not part of the operating system. Therefore, by
default, notify on event functionality is disabled in the driver from
2.1.0 onwards. Storage event logging may be enabled in the driver by
modifying cpqary3.conf to set the cpqary3_noe property to "on".
Modification of driver properties requires reloading the driver,
which in most cases will occur only following a reboot of the system.

The target driver's configuration file shall need entries if support
is needed for targets numbering greater than the default number of
targets supported by the corresponding target driver.

By default, entries for SCSI target numbers 0 to 15 are present in
sd.conf. Entries for target numbers 16 and above must be added to
the 'scsi' class in sd.conf to support additional corresponding
logical volumes.

If SCSI tape drives are connected to the supported controllers,
entries for target IDs from 33 to 33+N must be added in the
/kernel/drv/st.conf file under 'scsi' class, where N is the total
number of SCSI tape drives connected to the controller with largest
number of tape drives connected to it, in the existing configuration.
For example, two supported controller, c1 and c2 are present in the
system. If controller c1 has two (2) tape drives and controller c2
has five (5) tape drives connected, then entries for target IDs 33
thru 38 are required under 'scsi' class in /kernel/drv/st.conf file.
The maximum number of tape drives that can be connected to a
controller is 28. With 1.90 and later versions of cpqary3 driver, if
tape drives are connected to Smart Array SAS controllers, then target
ID entries for tape drives from 65 to 65+N must be added in
/kernel/drv/st.conf file under the 'scsi' class.

FILES

/kernel/drv/cpqary3.conf - configuration file for CPQary3

SEE ALSO

sd(4D), st(4D), driver.conf(5)

NOTES

The Smart Array controllers supported by the current version of the
cpqary3 driver do not support 'format unit' SCSI command. Hence,
selecting 'format' option under 'format' utility main menu is not
supported. In addition, the 'repair' option under 'format' utility
main menu is not supported as this operation is not applicable to
Logical volumes connected to the supported Smart Array controllers.

December 28, 2020 CPQARY3(4D)