NAME

       mpath_persistent_reserve_out - send PROUT command to DM device

SYNOPSIS

       #include <mpath_persist.h>

       int  mpath_persistent_reserve_out(int  fd,  int  rq_servact,  struct  prin_resp *resp, int
       noisy, int verbose)

DESCRIPTION

       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.

RETURNS

       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.

SEE ALSO

       mpathpersist(8).

AUTHORS

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