NAME

       opacmdall

       (Linux  and  Switch) Executes a command on all hosts or Intel(R) Omni-Path Chassis. This powerful command
       can be used for configuring servers or chassis, verifying that they are running,  starting  and  stopping
       host processes, and other tasks.

       NOTE:  opacmdall depends on the Linux* convention that utilities return 0 for success and >0 for failure.
       If opacmdall is used to execute a non-standard utility like diff or  a  program  that  uses  custom  exit
       codes,  then  opacmdall  may  erroneously report "Command execution FAILED" when it encounters a non-zero
       exit code. However, command output is still returned normally and the error may be safely ignored.

Syntax

       opacmdall [-CpqPS] [-f  hostfile] [-F  chassisfile] [-h  hosts]
       [-H  chassis] [-u  user] [-m  marker] [-T  timelimit]  cmd

Options

       --help

                 Produces full help text.

       -C

                 Performs command against chassis. Default is hosts.

       -p

                 Runs command in parallel on all hosts/chassis.

       -q

                 Quiet mode, do not show command to execute.

       -P

                 Outputs the hostname/chassis name  as  prefix  to  each  output  line.  This  can  make  script
                 processing of output easier.

       -S

                 Securely prompts for password for user on chassis.

       -f hostfile

                 Specifies the file with hosts in cluster. Default is /etc/opa/hosts file.

       -F chassisfile

                 Specifies the file with chassis in cluster. Default is /etc/opa/chassis file.

       -h host

                 Specifies the list of hosts to execute command on.

       -H chassis

                 Specifies the list of chassis to execute command on.

       -u user

                 Specifies the user to perform the command as:

                 •      For hosts, the default is current user code.

                 •      For chassis, the default is admin.

       -m marker

                 Specifies the marker for end of chassis command output. If omitted, defaults to chassis command
                 prompt. This may be a regular expression.

       -T timelimit

                 Specifies the time limit in seconds when running host commands. Default is -1 (infinite).

Examples

Operations on Host

       opacmdall date

       opacmdall 'uname -a'

       opacmdall -h 'elrond arwen' date

       HOSTS='elrond arwen' opacmdall date

Operations on Chassis

       opacmdall -C 'ismPortStats -noprompt'

       opacmdall -C -H 'chassis1 chassis2' ismPortStats -noprompt'

       CHASSIS='chassis1 chassis2' opacmdall -C ismPortStats -noprompt'

Environment Variables

       The following environment variables are also used by this command:

       HOSTS

                 List of hosts, used if -h option not supplied.

       CHASSIS

                 List of chassis, used if -C is used and -H and -F options not supplied.

       HOSTS_FILE

                 File containing list of hosts, used in absence of -f and -h.

       CHASSIS_FILE

                 File containing list of chassis, used in absence of -F and -H.

       FF_MAX_PARALLEL

                 When -p option is used, maximum concurrent operations are performed.

       FF_SERIALIZE_OUTPUT

                 Serialize output of parallel operations (yes or no).

       FF_CHASSIS_LOGIN_METHOD

                 How to log into chassis. Can be Telnet or SSH.

       FF_CHASSIS_ADMIN_PASSWORD

                 Password for admin on all chassis. Used in absence of -S option.

Notes

       All  commands performed with opacmdall must be non-interactive in nature. opacmdall waits for the command
       to complete before proceeding. For example, when  running  host  commands  such  as  rm,  the  -i  option
       (interactively  prompt  before removal) should not be used. (Note that this option is sometimes part of a
       standard bash alias list.) Similarly, when running chassis commands such as fwUpdateChassis, the  -reboot
       option  should not be used because this option causes an immediate reboot and therefore the command never
       returns. Also, the chassis command reboot should not  be  executed  using  opacmdall.  Instead,  use  the
       opachassisadmin  reboot  command  to reboot one or more chassis. For further information about individual
       chassis CLI commands, consult the Intel(R) Omni-Path Fabric Switches  Command  Line  Interface  Reference
       Guide

       When  performing  opacmdall  against  hosts,  internally SSH is used. The command opacmdall requires that
       password-less SSH be set up between the host running  the  Intel(R)  Omni-Path  Fabric  Suite  FastFabric
       Toolset  and the hosts opacmdall is operating against. The opasetupssh FastFabric tool can aid in setting
       up password-less SSH.

       When performing opacmdall against a set of chassis, all chassis must be configured with  the  same  admin
       password.  Alternatively,  the opasetupssh FastFabric tool can be used to set up password-less SSH to the
       chassis.

       When performing operations against chassis, Intel recommends that you set up SSH keys using  opasetupssh.
       If  SSH keys are not set up, Intel recommends that you use the -S option to avoid keeping the password in
       configuration files.

Copyright(C) 2015-2019                          Intel Corporation                                   opacmdall(8)