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  12 .\" Copyright (C) 2013 Hewlett-Packard Development Company, L.P.
  13 .\"
  14 .TH CPQARY3 7D Aug 26, 2013"
  15 .SH NAME
  16 .LP
  17 cpqary3 - provides disk and SCSI tape support for HP Smart Array controllers
  18 .LP
  19 .SH DESCRIPTION
  20 .LP
  21 The cpqary3 module provides low-level interface routines between the common
  22 disk I/O subsystem and the HP SMART Array controllers. The cpqary3 driver
  23 provides disk and SCSI tape support for the HP Smart Array controllers.
  24 .LP
  25 Please refer to the cpqary3 release notes, for the supported HP Smart Array
  26 Controllers and Storage boxes.
  27 .LP
  28 Each controller should be the sole initiator on a SCSI bus. Auto
  29 configuration code determines if the adapter is present at the Configured
  30 address and what types of devices are attached to it.
  31 .SH CONFIGURATION
  32 Use the Array Configuration Utility to configure the controllers. Each
  33 controller can support up to 32 logical volumes. In addition, each controller
  34 supports up to a maximum of 28 connected SCSI tape drives.
  35 With 1.90 and later versions of cpqary3 driver, HP Smart Array SAS controllers,
  36 having Firmware Revision 5.10 or later, will support 64 logical drives. This
  37 firmware also supports Dual Domian Multipath configurations.
  38 .LP
  39 The driver attempts to initialize itself in accordance with the information
  40 found in the configuration file, /kernel/drv/cpqary3.conf.
  41 .LP
  42 New component - hmaeventd which logs the storage events onto console and to the
  43 Integrated Management Log is made a part of HPQhma 5.0.0 package, which is not
  44 part of the operating system.  Therefore, by default, notify on event
  45 functionality is disabled in the driver from 2.1.0 onwards.  Storage event
  46 logging may be enabled in the driver by modifying cpqary3.conf to set the
  47 cpqary3_noe property to "on".  Modification of driver properties requires
  48 reloading the driver, which in most cases will occur only following a reboot of
  49 the system.
  50 .LP
  51 The target driver's configuration file shall need entries if support is needed
  52 for targets numbering greater than the default number of targets supported by
  53 the corresponding target driver.
  54 .LP
  55 By default, entries for SCSI target numbers 0 to 15 are present in sd.conf.
  56 Entries for target numbers 16 and above must be added to the \&'scsi' class in
  57 sd.conf to support additional corresponding logical volumes.
  58 .LP
  59 If SCSI tape drives are connected to the supported controllers, entries for
  60 target IDs from 33 to 33+N must be added in the /kernel/drv/st.conf file under
  61 \&'scsi' class, where N is the total number of SCSI tape drives connected to the
  62 controller with largest number of tape drives connected to it, in the existing
  63 configuration. For example, two supported controller, c1 and c2 are present in
  64 the system. If controller c1 has two (2) tape drives and controller c2 has five
  65 (5) tape drives connected, then entries for target IDs 33 thru 38 are required
  66 under 'scsi' class in /kernel/drv/st.conf file. The maximum number of tape
  67 drives that can be connected to a controller is 28. With 1.90 and later versions
  68 of cpqary3 driver, if tape drives are connected to Smart Array SAS controllers,
  69 then target ID entries for tape drives from 65 to 65+N must be added in
  70 /kernel/drv/st.conf file under the \&'scsi' class.
  71 .SH FILES
  72 .PD 0
  73 .TP 25
  74 .B /kernel/drv/cpqary3.conf
  75 - configuration file for CPQary3
  76 .PD
  77 .SH "SEE ALSO"
  78 .BR driver.conf (4),
  79 .BR sd (7D),
  80 .BR st (7D)
  81 .LP
  82 .SH NOTES
  83 .LP
  84 The Smart Array controllers supported by the current version of the
  85 cpqary3 driver do not support 'format unit' SCSI command. Hence, selecting
  86 \&'format' option under 'format' utility main menu is not supported. In addition,
  87 the 'repair' option under 'format' utility main menu is not supported as this
  88 operation is not applicable to Logical volumes connected to the supported Smart
  89 Array controllers.