mpath_persistent_reserve_out - send PROUT command to DM device

multipath-tools was developed by Christophe Varoqui <christophe.varoqui@opensvc.com> and others.

Linux                                              2016-11-01                    MPATH_PERSISTENT_RESERVE_OUT(3)

       The  function  in  the  mpath_persistent_reserve_out() sends PROUT command to the DM device and gets the
       response.

       Parameters:fd          The file descriptor of a multipath device. Input argument.

              rq_servact  PROUT command service action. Input argument.

              rq_scope    Persistent reservation scope. The value should be always LU_SCOPE (0h).

              rq_type     Persistent reservation type. The valid values of persistent reservation types are:

                                 5h (Write exclusive - registrants only).

                                 6h (Exclusive access - registrants only).

                                 7h (Write exclusive - All registrants).

                                 8h (Exclusive access - All registrants).

              paramp      PROUT command parameter data. The paramp is a struct which describes  PROUT  parameter
                          list. Caller should manage the memory allocation of this structure.

              noisy       Turn on debugging trace: Input argument. 0->Disable, 1->Enable.

              verbose     Set  verbosity level. Input argument. value: 0 to 3. 0->Crits and Errors, 1->Warnings,
                          2->Info, 3->Debug.

       mpath_persistent_reserve_out - send PROUT command to DM device

MPATH_PR_SUCCESS
                   If PR command successful else returns any one of the status mentioned below.

       MPATH_PR_SYNTAX_ERROR
                   If syntax error or invalid parameter.

       MPATH_PR_SENSE_NOT_READY
                   If command fails with [sk,asc,ascq: 0x2,*,*].

       MPATH_PR_SENSE_MEDIUM_ERROR
                   If command fails with [sk,asc,ascq: 0x3,*,*].

       MPATH_PR_SENSE_HARDWARE_ERROR
                   If command fails with [sk,asc,ascq: 0x4,*,*].

       MPATH_PR_SENSE_INVALID_OP
                   If command fails with [sk,asc,ascq: 0x5,0x20,0x0].

       MPATH_PR_ILLEGAL_REQ
                   If command fails with [sk,asc,ascq: 0x5,*,*].

       MPATH_PR_SENSE_UNIT_ATTENTION
                   If command fails with [sk,asc,ascq: 0x6,*,*].

       MPATH_PR_SENSE_ABORTED_COMMAND
                   If command fails with [sk,asc,ascq: 0xb,*,*].

       MPATH_PR_NO_SENSE
                   If command fails with [sk,asc,ascq: 0x0,*,*].

       MPATH_PR_SENSE_MALFORMED
                   If command fails with SCSI command malformed.

       MPATH_PR_FILE_ERROR
                   If command fails while accessing file (device node) problems(e.g. not found).

       MPATH_PR_DMMP_ERROR
                   If Device Mapper related error.(e.g Error in getting dm info).

       MPATH_PR_OTHER
                   If other error/warning has occurred(e.g transport or driver error).

       MPATH_PR_RESERV_CONFLICT
                   If command fails with reservation conflict.

mpathpersist(8).

#include<mpath_persist.h>intmpath_persistent_reserve_out(intfd,intrq_servact,structprin_resp*resp,intnoisy,intverbose)