/usr/sbin/cfgadm [-f] [-y | -n] [-v] [-o hardware_options] -c function ap_id...
/usr/sbin/cfgadm [-f] [-y | -n] [-v] [-o hardware_options] -x hardware_function ap_id...
/usr/sbin/cfgadm [-v] [-a] [-s listing_options] [-o hardware_options] [-l [ap_id | ap_type]...]
/usr/sbin/cfgadm [-v] [-o harware_options] -t ap_id...
/usr/sbin/cfgadm [-v] [-o hardware_options] -h [ap_id]...
The SATA hardware specific library, /usr/lib/cfgadm/sata.so.1, provides the functionality for SATA hot plugging through the cfgadm command. cfgadm operates on attachment points, which are locations in the system where hardware resources can be dynamically reconfigured. See cfgadm(1M) for information regarding attachment points.
Each SATA controller's and port multiplier's device port is represented by an attachment point in the device tree. SATA devices, connected and configured in the system are shown as the attachment point name extension. The terms "attachment point" and "SATA port" are used interchangeably in the following description.
Attachment points are named through ap_ids. All the SATA attachment points ap_id consist of a string in the following form:
In general, the device identifier is derived from the corresponding logical link for the device in /dev. Because only one LUN (LUN 0) is supported by the SATA device, the "d" component of the device string will always have number 0 (zero).
For example, the logical ap_id of the device port 4 of the port multiplier connected to the device port 5 of the SATA controller 2 would be:
If the SATA disk or CD/DVD device is connected to this attachment point, and the device is configured, the ap_id would be:
The cXtYd0 string identifying a device has one-to-one correspondence to the device attachment point.
A simple listing of attachment points in the system will include all SATA device ports and attached devices. For example:
#cfgadm -l Ap_Id Type Receptacle Occupant Condition sata0/0::dev/c0t0d0 disk connected configured ok sata0/1::dev/c0t1d0 disk connected configured ok sata0/2::dev/c0t2d0 cd-dvd connected configured ok sata0/3 sata-port empty unconfigured ok sata1/0 sata-port disconnected unconfigured unknown sata1/1 sata port disconnected unconfigured unknown sata1/2 sata port empty unconfigured ok sata1/3.15 sata-pmult connected configured ok sata1/3.0::dev/c0t512d0 disk connected configured ok sata1/3.1 sata-port empty unconfigured ok sata1/3.2 sata-port empty unconfigured ok sata1/3.3 sata-port empty unconfigured ok usb0/1 unknown empty unconfigured ok usb0/2 unknown empty unconfigured ok
See cfgadm(1M)for more information regarding listing of attachment points.
The receptacle state for attachment point at the SATA port have the following meanings:
The occupant (device attached to the SATA port) state have the following meanings:
The attachment point (SATA port) condition have the following meanings:
A "state table" is the combination of an attachment point receptacle state, an occupant state, and an attachment point (SATA port) condition. The valid states are:
cfgadm defines several types of operations besides listing (-l). These operations include testing, (-t), invoking configuration state changes, (-c), invoking hardware specific functions (-x), and obtaining configuration administration help messages (-h).
For a SATA device attached to the SATA port following state change operations are supported:
The configure and unconfigure operations cannot be used for an attachment point where the port multiplier is connected. Port multipliers are configured and unconfigured automatically by the system. However, configure and unconfigure operations apply to all SATA devices connected to the port multiplier's device ports.
Some of the following commands used on the SATA ports or the SATA controller may affect any SATA devices that have been attached, as noted. ap_id refers to SATA port or the entire SATA controller, as noted. If the operation implies unconfiguring a device, but it cannot be unconfigured (that is, the device contains a mounted filesystem), an error message is issued and the operation is not performed. An error message will be also issued if the SATA controller does not support specified operation.
This operations implies unconfiguring all attached devices prior to the operation. Any newly enumerated devices will be left unconfigured.
The following Transitions table reports the state transitions resulting from the -c operations and hotplugging actions:
current state operation possible new state ------------- --------- ------------------ empty/ unconfigured/ok device plug-in connected/unconfigured/ok, or disconnected/unconfigured/ok, or disconnected/unconfigured/failed empty/ unconfigured/ok -c unconfigure error message, no state change empty/ unconfigured/ok -c configure error message, no state change empty/ unconfigured/ok -c connect error message, no state change empty/ unconfigured/ok -c disconnect disconnected/unconfigured/unknown, or disconnected/unconfigured/failed disconnected/ unconfigured/ok device unplug no state change disconnected/ unconfigured/ok -c unconfigure error message, no state change disconnected/ unconfigured/ok -c configure error message, no state change disconnected/ unconfigured/ok -c connect error message, no state change disconnected/ unconfigured/ok -c disconnect error message, no state change disconnected/ unconfigured/ unknown (no disk plugged) -c configure error message, state change to empty/unconfigured/ok, or disconnected/unconfigured/failed disconnected/ unconfigured/ unknown -c configure state change to (disk plugged) connected/configured/ok or, connected/unconfigured/ok, or disconnected/unconfigured/failed and possible error message disconnected/ unconfigured/ unknown -c connect empty/unconfigured/ok, or connected/unconfigured/ok, or disconnected/unconfigured/ok, or disconnected/unconfigured/unknown, or disconnected/unconfigured/failed disconnected/ unconfigured/ unknown -c disconnect error message, no state change disconnected/ unconfigured/ failed any command error message, no state change other than -x commands connected/ unconfigured/ok disk unplug error message and state: empty/unconfigured/ok, or disconnected/unconfigured/failed connected/ unconfigured/ok -c configure connected/unconfigured/ok, or connected/configured/ok, or disconnected/unconfigured/ok, or disconnected/unconfigured/failed connected/ unconfigured/ok -c unconfigure error message, no state change connected/ unconfigured/ok -c connect error message, no state change connected/ unconfigured/ok -c disconnect disconnected/unconfigured/unknown, or disconnected/unconfigured/failed connected/ configured/ok disk unplug error message and state: empty/unconfigured/ok, or disconnected/unconfigured/failed connected/ configured/ok -c configure error message, no state change connected/ configured/ok -c unconfigure error message, if device cannot be unconfigured, no state change, or connected/unconfigured/ok, or disconnected/unconfigured/ok, or disconnected/unconfigured/failed connected/ configured/ok -c connect error message, no state change connected/ configured/ok -c disconnect error message, if device cannot be unconfigured, no state change, or disconnected/unconfigured/unknown, or disconnected/unconfigured/failed
The following command configures a disk attached to SATA controller 0, port 0:
example# cfgadm -c configure sata0/0
This command should be issued only when there is a device connected to the SATA port.
Example 2 Unconfiguring a Disk
The following command unconfigures a disk attached to SATA controller 0, port 3:
example# cfgadm -c unconfigure sata0/3::dsk/c0t3d0
The device identifying string is shown when the attachment point receptacle state is "connected" and occupant state is "configured".
Example 3 Encountering a Mounted File System While Unconfiguring a Disk
The following command illustrates encountering a mounted file system while unconfiguring a disk:
example# cfgadm -c unconfigure sata1/5::dsk/c01t35d0
The system responds with the following:
cfgadm: Component system is busy, try again: failed to offline: /devices/pci@0,0/pci8086,244e@1e/pci1095,3124@1/sd@5,0 Resource Information ------------------ -------------------------- /dev/dsk/c1t5d0s0 mounted filesystem "/mnt"
The emergency "sata_port_deactivate" operation is not supported on ports with attached disks containing critical partitions such as root (/), /usr, swap, or /var. The deactivate operation should not be attempted on such ports. Incorrect usage can result in a system hang and require a reboot.
Hotplugging operations are not supported by all SATA controllers.
If SATA connectors are the hot-pluggable type and the SATA controller supports hotplugging, a SATA device can be hotplugged at any time. The system detects the event and establishes the communication with the device. The device has to be configured by the explicit "cfgadm -c configure ap_id" command.
If the SATA connectors are the hot-pluggable type and the SATA controller supports hotplugging, unplugging a device without unconfiguring it may result in system hang or data loss. If a device is unconfigured but receptacle state is not in a disconnected state, unplugging a device from the SATA port will result in error message.
The connectors on some SATA devices do not conform to SATA hotplug specifications. Performing hotplug operations on such devices can cause damage to the SATA controller and/or the SATA device.
|August 27, 2007||OmniOS|