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12 .\" Copyright (C) 2013 Hewlett-Packard Development Company, L.P.
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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.