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hpsa(4) Kernel Interfaces Manual hpsa(4)
hpsa - HP Smart Array SCSI driver
modprobe hpsa [ hpsa_allow_any=1 ]
hpsa is a SCSI driver for HP Smart Array RAID controllers.
Options
hpsa_allow_any=1: This option allows the driver to attempt to
operate on any HP Smart Array hardware RAID controller, even if
it is not explicitly known to the driver. This allows newer
hardware to work with older drivers. Typically this is used to
allow installation of operating systems from media that predates
the RAID controller, though it may also be used to enable hpsa to
drive older controllers that would normally be handled by the
cciss(4) driver. These older boards have not been tested and are
not supported with hpsa, and cciss(4) should still be used for
these.
Supported hardware
The hpsa driver supports the following Smart Array boards:
Smart Array P700M
Smart Array P212
Smart Array P410
Smart Array P410i
Smart Array P411
Smart Array P812
Smart Array P712m
Smart Array P711m
StorageWorks P1210m
Since Linux 4.14, the following Smart Array boards are also
supported:
Smart Array 5300
Smart Array 5312
Smart Array 532
Smart Array 5i
Smart Array 6400
Smart Array 6400 EM
Smart Array 641
Smart Array 642
Smart Array 6i
Smart Array E200
Smart Array E200i
Smart Array E200i
Smart Array E200i
Smart Array E200i
Smart Array E500
Smart Array P400
Smart Array P400i
Smart Array P600
Smart Array P700m
Smart Array P800
Configuration details
To configure HP Smart Array controllers, use the HP Array
Configuration Utility (either hpacuxe(8) or hpacucli(8)) or the
Offline ROM-based Configuration Utility (ORCA) run from the Smart
Array's option ROM at boot time.
Device nodes
Logical drives are accessed via the SCSI disk driver (sd(4)),
tape drives via the SCSI tape driver (st(4)), and the RAID
controller via the SCSI generic driver (sg(4)), with device nodes
named /dev/sd*, /dev/st*, and /dev/sg*, respectively.
HPSA-specific host attribute files in /sys
/sys/class/scsi_host/host*/rescan
This is a write-only attribute. Writing to this attribute
will cause the driver to scan for new, changed, or removed
devices (e.g., hot-plugged tape drives, or newly
configured or deleted logical drives, etc.) and notify
the SCSI midlayer of any changes detected. Normally a
rescan is triggered automatically by HP's Array
Configuration Utility (either the GUI or the command-line
variety); thus, for logical drive changes, the user should
not normally have to use this attribute. This attribute
may be useful when hot plugging devices like tape drives,
or entire storage boxes containing preconfigured logical
drives.
/sys/class/scsi_host/host*/firmware_revision
This attribute contains the firmware version of the Smart
Array.
For example:
# cd /sys/class/scsi_host/host4
# cat firmware_revision
7.14
HPSA-specific disk attribute files in /sys
/sys/class/scsi_disk/c:b:t:l/device/unique_id
This attribute contains a 32 hex-digit unique ID for each
logical drive.
For example:
# cd /sys/class/scsi_disk/4:0:0:0/device
# cat unique_id
600508B1001044395355323037570F77
/sys/class/scsi_disk/c:b:t:l/device/raid_level
This attribute contains the RAID level of each logical
drive.
For example:
# cd /sys/class/scsi_disk/4:0:0:0/device
# cat raid_level
RAID 0
/sys/class/scsi_disk/c:b:t:l/device/lunid
This attribute contains the 16 hex-digit (8 byte) LUN ID
by which a logical drive or physical device can be
addressed. c:b:t:l are the controller, bus, target, and
lun of the device.
For example:
# cd /sys/class/scsi_disk/4:0:0:0/device
# cat lunid
0x0000004000000000
Supported ioctl() operations
For compatibility with applications written for the cciss(4)
driver, many, but not all of the ioctls supported by the cciss(4)
driver are also supported by the hpsa driver. The data
structures used by these ioctls are described in the Linux kernel
source file include/linux/cciss_ioctl.h.
CCISS_DEREGDISK
CCISS_REGNEWDISK
CCISS_REGNEWD
These three ioctls all do exactly the same thing, which is
to cause the driver to rescan for new devices. This does
exactly the same thing as writing to the hpsa-specific
host "rescan" attribute.
CCISS_GETPCIINFO
Returns PCI domain, bus, device, and function and "board
ID" (PCI subsystem ID).
CCISS_GETDRIVVER
Returns driver version in three bytes encoded as:
(major_version << 16) | (minor_version << 8) |
(subminor_version)
CCISS_PASSTHRU
CCISS_BIG_PASSTHRU
Allows "BMIC" and "CISS" commands to be passed through to
the Smart Array. These are used extensively by the HP
Array Configuration Utility, SNMP storage agents, and so
on. See cciss_vol_status at ⟨http://cciss.sf.net⟩ for
some examples.
cciss(4), sd(4), st(4), cciss_vol_status(8), hpacucli(8),
hpacuxe(8)
⟨http://cciss.sf.net⟩, and Documentation/scsi/hpsa.txt and
Documentation/ABI/testing/sysfs-bus-pci-devices-cciss in the
Linux kernel source tree
This page is part of the man-pages (Linux kernel and C library
user-space interface documentation) project. Information about
the project can be found at
⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report
for this manual page, see
⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
This page was obtained from the tarball man-pages-6.9.1.tar.gz
fetched from
⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2024-06-26. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to
man-pages@man7.org
Linux man-pages 6.9.1 2024-05-02 hpsa(4)
Pages that refer to this page: cciss(4), smartpqi(4), capabilities(7)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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