ciss(4) [debian man page]
CISS(4) BSD Kernel Interfaces Manual CISS(4) NAME
ciss -- Common Interface for SCSI-3 Support driver SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file: device scbus device ciss Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): ciss_load="YES" DESCRIPTION
The ciss driver claims to provide a common interface between generic SCSI transports and intelligent host adapters. The ciss driver supports CISS as defined in the document entitled CISS Command Interface for SCSI-3 Support Open Specification, Version 1.04, Valence Number 1, dated 2000/11/27, produced by Compaq Computer Corporation. We provide a shim layer between the ciss interface and CAM(4), offloading most of the queueing and being-a-disk chores onto CAM. Entry to the driver is via the PCI bus attachment ciss_probe(), ciss_attach(), etc. and via the CAM interface ciss_cam_action(), and ciss_cam_poll(). The Compaq ciss adapters require faked responses to get reasonable behavior out of them. In addition, the ciss command set is by no means adequate to support the functionality of a RAID controller, and thus the supported Compaq adapters utilize portions of the control protocol from earlier Compaq adapter families. Currently ciss only supports the ``simple'' transport layer over PCI. This interface (ab)uses the I2O register set (specifically the post queues) to exchange commands with the adapter. Other interfaces are available, but we are not supposed to know about them, and it is dubious whether they would provide major performance improvements except under extreme load. Non-disk devices (such as internal DATs and devices attached to the external SCSI bus) are supported as normal CAM devices provided that they are exported by the controller firmware and are not marked as being masked. Masked devices can be exposed by setting the hw.ciss.expose_hidden_physical tunable to non-zero at boot time. Direct Access devices (such as disk drives) are only exposed as pass(4) devices. Hot-insertion and removal of devices is supported but a bus rescan might be necessary. The problem which adapter freezes with the message ``ADAPTER HEARTBEAT FAILED'' might be solved by updating the firmware and/or setting the hw.ciss.nop_message_heartbeat tunable to non-zero at boot time. HARDWARE
Controllers supported by the ciss driver include: o Compaq Smart Array 5300 o Compaq Smart Array 532 o Compaq Smart Array 5i o HP Smart Array 5312 o HP Smart Array 6i o HP Smart Array 641 o HP Smart Array 642 o HP Smart Array 6400 o HP Smart Array 6400 EM o HP Smart Array E200 o HP Smart Array E200i o HP Smart Array P212 o HP Smart Array P400 o HP Smart Array P400i o HP Smart Array P410 o HP Smart Array P410i o HP Smart Array P411 o HP Smart Array P600 o HP Smart Array P800 o HP Smart Array P812 o HP Modular Smart Array 20 (MSA20) o HP Modular Smart Array 500 (MSA500) SEE ALSO
cam(4), pass(4), xpt(4), loader.conf(5), camcontrol(8) CISS Command Interface for SCSI-3 Support Open Specification, Version 1.04, Valence Number 1, Compaq Computer Corporation, 2000/11/27. AUTHORS
The ciss driver was written by Mike Smith <msmith@FreeBSD.org>. This manual page is based on his comments and was written by Tom Rhodes <trhodes@FreeBSD.org>. BSD
November 3, 2005 BSD
Check Out this Related Man Page
HPSA(4) Linux Programmer's Manual HPSA(4) 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) 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. FILES
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. SEE ALSO
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 COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. Linux 2017-09-15 HPSA(4)