svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
ctl(4)
To compile this driver into the kernel, place the following line
in your kernel configuration file: Alternatively, to load the
driver as a module at boot time, place the following line in
ctl_load="YES" The subsystem provides SCSI target devices emula‐
tion. It supports features such as: Disk, CD-ROM and processor
device emulation Tagged queueing SCSI task attribute support (or‐
dered, head of queue, simple tags) SCSI implicit command ordering
support Full task management support (abort, query, reset, etc.)
Support for multiple ports, initiators, targets and backing
stores Support for VMWare VAAI and Microsoft ODX offload (COMPARE
AND WRITE, XCOPY, POPULATE TOKEN/WRITE USING TOKEN, WRITE SAME
and UNMAP) Persistent reservation support Extensive VPD/mode/log
pages support Featured error reporting, error injection and basic
SMART support High Availability clustering support with ALUA All
I/O handled in-kernel, no userland context switch overhead The
subsystem includes multiple frontends to provide access using
different transport protocols and implementations: Provides ac‐
cess for local system via virtual initiator mode SIM. Provides
access for remote systems via target mode SIMs, such as Fibre
Channel and Provides access for remote systems via USB Mass Stor‐
age Class Bulk Only (BBB) Transport. Internal frontend used to
receive requests from other node ports in High Availability clus‐
ter. Provides access for local user-level applications via based
API. Provides access for remote systems via the iSCSI protocol
using Internal frontend used to receive requests from Third Party
Copy engine, implementing copy offload operations. The subsystem
includes two backends to create logical units using different
kinds of backing stores: Stores data in ZFS ZVOLs, files or raw
block devices. Stores data in RAM, that makes it mostly useful
for performance testing. Depending on configured capacity can
work as black hole, thin or thick provisioned disk. The follow‐
ing variables are available as both variables and tunables: Bit
mask of enabled CTL log levels: log commands with errors; log all
commands; log data for commands other then READ/WRITE. Defaults
to 0. Specifies unique position of this node within High Avail‐
ability cluster. Default is 0 -- no HA, 1 and 2 -- HA enabled at
specified position. Specifies High Availability cluster opera‐
tion mode: Active/Standby -- primary node has backend access and
processes requests, while secondary can only do basic LUN discov‐
ery and reservation; Active/Active -- both nodes have backend ac‐
cess and process requests, while secondary node synchronizes pro‐
cessing with primary one; Active/Active -- primary node has back‐
end access and processes requests, while secondary node forwards
all requests and data to primary one; All above modes require es‐
tablished connection between HA cluster nodes. If connection is
not configured, secondary node will report Unavailable state; if
configured but not established -- Transitioning state. Defaults
to 0. String value, specifying method to establish connection to
peer HA node. Can be "listen IP:port", "connect IP:port" or
empty. Reports present state of connection between HA cluster
nodes: not configured; configured but not established; estab‐
lished. Specifies default role of this node: primary; secondary.
This role can be overridden on per-LUN basis using "ha_role" LUN
option, so that for one LUN one node is primary, while for an‐
other -- another. Role change from primary to secondary for HA
modes 0 and 2 closes backends, the opposite change -- opens. If
there is no primary node (both nodes are secondary, or secondary
node has no connection to primary one), secondary node(s) report
Transitioning state. State with two primary nodes is illegal
(split brain condition). The following variables are available
as tunables: Specifies the maximum number of LUNs we support,
must be a power of 2. The default value is 1024. Specifies the
maximum number of ports we support, must be a power of 2. The
default value is 256. The subsystem first appeared in The sub‐
system was originally written by Later work was done by