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dmmp_path_status_get(3) Device Mapper Multipath API - libdmmp Manual dmmp_path_status_get(3)
NAME
dmmp_path_status_get - Retrieve the path status.
SYNOPSIS
uint32_t dmmp_path_status_get (struct dmmp_path *dmmp_p);
ARGUMENTS
dmmp_p Pointer of 'struct dmmp_path'. If this pointer is NULL, your program will be
terminated by assert.
DESCRIPTION
The valid path statuses are:
* DMMP_PATH_STATUS_UNKNOWN
* DMMP_PATH_STATUS_DOWN
Path is down and you shouldn't try to send commands to it.
* DMMP_PATH_STATUS_UP
Path is up and I/O can be sent to it.
* DMMP_PATH_STATUS_SHAKY
Only emc_clariion checker when path not available for "normal" operations.
* DMMP_PATH_STATUS_GHOST
Only hp_sw and rdac checkers. Indicates a "passive/standby" path on active/passive HP ar-
rays. These paths will return valid answers to certain SCSI commands (tur, read_capacity,
inquiry, start_stop), but will fail I/O commands. The path needs an initialization com-
mand to be sent to it in order for I/Os to succeed.
* DMMP_PATH_STATUS_PENDING
Available for all async checkers when a check IO is in flight.
* DMMP_PATH_STATUS_TIMEOUT
Only tur checker when command timed out.
* DMMP_PATH_STATUS_DELAYED
If a path fails after being up for less than delay_watch_checks checks, when it comes back
up again, it will not be marked as up until it has been up for delay_wait_checks checks.
During this time, it is marked as "delayed".
RETURN
uint32_t.
March 2018 dmmp_path_status_get dmmp_path_status_get(3)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
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