# hpsa - HP Smart Array SCSI driver - man(4) - [phpMan] [_hpsa_(4)](https://www.chedong.com/phpMan.php/man/hpsa/4/markdown) Kernel Interfaces Manual [_hpsa_(4)](https://www.chedong.com/phpMan.php/man/hpsa/4/markdown) ## NAME hpsa - HP Smart Array SCSI driver ## SYNOPSIS modprobe hpsa [ hpsa_allow_any=1 ] ## DESCRIPTION **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)](https://www.chedong.com/phpMan.php/man/cciss/4/markdown) driver. These older boards have not been tested and are not supported with **hpsa**, and [**cciss**(4)](https://www.chedong.com/phpMan.php/man/cciss/4/markdown) 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)](https://www.chedong.com/phpMan.php/man/hpacuxe/8/markdown) or [**hpacucli**(8)](https://www.chedong.com/phpMan.php/man/hpacucli/8/markdown)) or the Offline ROM-based Configuration Utility (ORCA) run from the Smart Array's option ROM at boot time. ## FILES ### Device nodes Logical drives are accessed via the SCSI disk driver ([**sd**(4)](https://www.chedong.com/phpMan.php/man/sd/4/markdown)), tape drives via the SCSI tape driver ([**st**(4)](https://www.chedong.com/phpMan.php/man/st/4/markdown)), and the RAID controller via the SCSI generic driver ([**sg**(4)](https://www.chedong.com/phpMan.php/man/sg/4/markdown)), 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 Configu‐ ration 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 contain‐ ing 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)](https://www.chedong.com/phpMan.php/man/cciss/4/markdown) driver, many, but not all of the ioctls supported by the [**cciss**(4)](https://www.chedong.com/phpMan.php/man/cciss/4/markdown) driver are also supported by the **hpsa **driver. The data structures used by these ioctls are described in the Linux kernel source file _in‐_ _clude/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 res‐ can 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 []() for some examples. ## SEE ALSO [**cciss**(4)](https://www.chedong.com/phpMan.php/man/cciss/4/markdown), [**sd**(4)](https://www.chedong.com/phpMan.php/man/sd/4/markdown), [**st**(4)](https://www.chedong.com/phpMan.php/man/st/4/markdown), [**cciss_vol_status**(8)](https://www.chedong.com/phpMan.php/man/ccissvolstatus/8/markdown), [**hpacucli**(8)](https://www.chedong.com/phpMan.php/man/hpacucli/8/markdown), [**hpacuxe**(8)](https://www.chedong.com/phpMan.php/man/hpacuxe/8/markdown) [](), and _Documentation/scsi/hpsa.txt_ and _Documentation/ABI/test‐_ _ing/sysfs-bus-pci-devices-cciss_ in the Linux kernel source tree Linux man-pages 6.7 2023-10-31 [_hpsa_(4)](https://www.chedong.com/phpMan.php/man/hpsa/4/markdown)