Differences

This shows you the differences between two versions of the page.

@@ Line 1: / Line 1: @@
+====== Backup Brocade SAN switch ======
+Note, this is a few years old and updates to the fabos may require changes to the expect script.
+===== Background =====
+In the event of a hardware failure, a switch config is desirable to enable the rebuild of the config with minimal downtime. The Brocade Fibre Channel switches have a command which will produce a switch config and put it on a remote server. As this is an interactive command which requires feeding with answers, it cannot just be run without user interaction.
+The scripts below feed a txt file containing switch details in to a bash script which calls an expect script. The expect script drives the backup process.
+===== Script details =====
+A new user was created on mon01 with the home directory of /home/backupsan. The config files live in this directory.
+The switches to back up are defined in a text file:-
+  [backupsan@mon01 ~]$ more SANswitchlist.txt
+  fcsw1-01
+  fcsw2-01
+  fcsw1-02
+  fcsw2-02
+  fcsw1-03
+  fcsw2-03
+  fcsw1-04
+  fcsw2-04
+  msasw01
+  msasw02
+This file is given to a shell script as the $1 argument (./SANswitchbackup.sh SANswitchlist.txt):-
+  [backupsan@mon01 ~]$ more SANswitchbackup.sh
+  #!/bin/bash
+  #Written Andrew S 08/09/2010
+  #Purpose is to backup SAN switch config
+  #This should be run from cron once per week, maybe less frequently.
+  #turn on debugging, -x starts, +x stops
+  set +x
+  DAY=`date +%F`
+  SWITCHUSER="admin"
+  SWITCHPASS="password"
+  SWITCHLOGIN="login:"
+  SWITCHPROMPT="admin>"
+  #BACKUPHOST="mon01.company.net"
+  BACKUPHOST="172.27.206.210"
+  BACKUPUSER="backupsan"
+  BACKUPPASS="topsecret"
+  BACKUPPATH="/home/backupsan/backupfiles"
+  SENDEMAIL=no
+  EMAILSUBJECT="SAN Switch Backup"
+  #e-mail distribution list
+  dist1="andrew.s@company.net"
+  TMPMAILFILE=/tmp/SANswitchBackup-$$
+  DEBUGLOG=/tmp/SANswitch-debug-$$
+  SANLIST=$1
+  if [ "$1" = "" ]
+   then
+     echo "You need to provide a server list file, eg. ./SAN-backup.sh sanswitchlist.txt."
+     exit 1
+  fi
+  echo "To: ${dist1}" > ${TMPMAILFILE}
+  echo "From: backupsan@mon01.prod.company.net" >> ${TMPMAILFILE}
+  echo "Subject: SAN Switch Backup. " >> ${TMPMAILFILE}
+  echo "From /home/backupsan/SANswitchbackup.sh" >> ${TMPMAILFILE}
+  echo "Start of debug log file" > ${DEBUGLOG}
+  #loop through all switches
+  for SWITCH in `cat ${SANLIST}`;
+  do
+          echo "-------------------------------------------"  >> ${DEBUGLOG}
+          echo "Switch ${SWITCH}"  >> ${DEBUGLOG}
+          echo "Switch ${SWITCH}"  >> ${TMPMAILFILE}
+          export BACKUPFILE="${BACKUPPATH}/${SWITCH}-${DAY}"
+          echo "Backup file is ${BACKUPFILE} - exported."  >> ${DEBUGLOG}
+          #run expect to get backup file
+          /usr/bin/expect SAN_config_upload.exp ${SWITCH} ${SWITCHUSER} ${SWITCHPASS} ${SWITCHLOGIN} \
+          ${SWITCHPROMPT} ${BACKUPHOST} ${BACKUPUSER} ${BACKUPPASS} ${BACKUPFILE}
+          #>> ${DEBUGLOG}
+          RC=$?
+          echo "\$RC is >${RC}<"
+          if [ ${RC} -eq 0 ]
+          then
+                  SUCCESS=true
+          else
+                  SENDEMAIL=yes
+          fi
+          #echo "Pipestatus is >$PIPESTATUS<"
+          echo "Expect return code is ${RC}" >> ${TMPMAILFILE}
+          echo "Expect return code is ${RC}" >> ${DEBUGLOG}
+          echo "-------------------------------------------"  >> ${TMPMAILFILE}
+          echo "-------------------------------------------"  >> ${DEBUGLOG}
+          echo " " >> ${TMPMAILFILE}
+          echo " " >> ${DEBUGLOG}
+  done
+  echo "All switches done"  >> ${TMPMAILFILE}
+  echo " "  >> ${TMPMAILFILE}
+  #Housekeeping, delete files older than 4 weeks
+  echo "Housekeeping." >> ${TMPMAILFILE}
+  echo "-------------" >> ${TMPMAILFILE}
+  #How old do the files need to be?
+  AGE=28
+  NUMFILES='zero'
+  NUMFILES=`find ${BACKUPPATH}/ -mtime +${AGE} | wc -l`
+  echo " "
+  echo "Deleting these files (${NUMFILES}) as they are older than 4 weeks:-" >> ${TMPMAILFILE}
+  #Do the deed!
+  find ${BACKUPPATH} -mtime +${AGE} -exec ls -l {} \; >> ${TMPMAILFILE}
+  find ${BACKUPPATH} -mtime +${AGE} -exec rm -f {} \;
+  echo " " >> ${TMPMAILFILE}
+  echo "SAN switch backup report." >> ${TMPMAILFILE}
+  echo "-------------------------" >> ${TMPMAILFILE}
+  echo " " >> ${TMPMAILFILE}
+  echo " " >> ${TMPMAILFILE}
+  echo "Current backup files in ${BACKUPPATH}:-" >> ${TMPMAILFILE}
+  echo " " >> ${TMPMAILFILE}
+  ls -1rt ${BACKUPPATH}  >>${TMPMAILFILE}
+  #Mail Out
+  if [  ${SENDEMAIL} == yes ]
+  then
+          echo "Sending notification mail at `date +%H:%M:%S` UTC." >> ${TMPMAILFILE}
+          echo " "  >> ${TMPMAILFILE}
+          echo "Return Codes:-"  >> ${TMPMAILFILE}
+          echo " "  >> ${TMPMAILFILE}
+          echo "RC=0, all ok."  >> ${TMPMAILFILE}
+          echo "RC=1, expect failed to log in to the FC switch."  >> ${TMPMAILFILE}
+          echo "RC=2, switch failed to log in to the backup server over ssh." >> ${TMPMAILFILE}
+          echo "RC=3, switch reported it didn't complete backup." >> ${TMPMAILFILE}
+          echo "RC=130, expect was killed with ctrl-c." >> ${TMPMAILFILE}
+          echo " " >> ${TMPMAILFILE}
+          /bin/mail ${dist1} -s "${EMAILSUBJECT}" < ${TMPMAILFILE}
+  else
+          #don't send mail, so mail command is commented out. Left in for testing
+          echo "Sending notification mail at `date +%H:%M:%S` UTC." >> ${TMPMAILFILE}
+          /bin/mail ${dist1} -s "${EMAILSUBJECT} - Test!" < ${TMPMAILFILE}
+  fi
+  #/usr/sbin/sendmail -t < ${TMPMAILFILE}
+  rm ${TMPMAILFILE}
+  #Comment if you want to see debug messages.
+  #rm ${DEBUGLOG}
+  exit 0
+The above script calls an expect script which does the real work:-
+  #!/usr/bin/expect
+  #Andrew S, 09/09/2010
+  #Purpose is to automate saving SAN switch to backup02 server
+  #This is to be run from within the backup shell script
+  #variables are set in the scell script.
+  #Sample transcript of the session to automate
+  #Older firmware
+  #[backupsan@mon01 ~]$ ssh -l admin fcsw1-01
+  #admin@fcsw1-01's password:
+  #fcsw1-01:admin> configupload
+  #Protocol (scp or ftp) [ftp]: scp
+  #Server Name or IP Address [host]: mon01
+  #User Name [user]: backupsan
+  #File Name [config.txt]: /home/backupsan/backupfiles/ajs11.txt
+  #backupsan@mon01's password:
+  #Upload complete
+  #fcsw1-01:admin> exit
+  #logout
+  #Connection to fcsw1-01 closed.
+  #[backupsan@mon01 ~]$
+  #Newer firmware
+  #[backupsan@mon01 ~]$ ssh -l admin gy-fcsw1-04
+  #admin@fcsw1-04's password:
+  #
+  #-----------------------------------------------------------------
+  #fcsw1-04:FID128:admin> configupload
+  #Protocol (scp, ftp, local) [ftp]: scp
+  #Server Name or IP Address [host]: mon01
+  #User Name [user]: backupsan
+  #Path/Filename [<home dir>/config.txt]: /home/backupsan/backupfiles/file12.txt
+  #Section (all|chassis|FID# [all]): all
+  #backupsan@mon01's password:
+  #
+  #configUpload complete: All selected config parameters are uploaded
+  #fcsw1-04:FID128:admin>
+  set force_conservative 1  ;# set to 1 to force conservative mode even if
+                            ;# script wasn't run conservatively originally
+  if {$force_conservative} {
+          set send_slow {1 .1}
+          proc send {ignore arg} {
+                  sleep .1
+                  exp_send -s -- $arg
+          }
+  }
+  #
+  # Process the configupload commands
+  set SWITCH [lindex $argv 0]
+  set SWITCHUSER [lindex $argv 1]
+  set SWITCHPASS [lindex $argv 2]
+  set SWITCHLOGIN [lindex $argv 3]
+  set SWITCHPROMPT [lindex $argv 4]
+  set BACKUPHOST [lindex $argv 5]
+  set BACKUPUSER [lindex $argv 6]
+  set BACKUPPASS [lindex $argv 7]
+  set BACKUPFILE [lindex $argv 8]
+  set timeout 15
+  spawn $env(SHELL)
+  match_max 100000
+  #Login
+  send -- "ssh -l ${SWITCHUSER} ${SWITCH}\r"
+  expect {
+          default {exit 0}
+          "Permission denied" {exit 1}
+          "password:" {send -- "${SWITCHPASS}\r"}
+          }
+  #send -- "${SWITCHPASS}\r"
+  #get prompt and start upload
+  #fcsw1-01:admin>
+  #or
+  #fcsw1-04:FID128:admin>
+  expect  "admin>"
+  send -- "configupload\r"
+  #Choose scp from options
+  #Protocol (scp or ftp) [ftp]:
+  #or
+  #Protocol (scp, ftp, local) [ftp]: scp
+  expect  "scp"
+  send -- "scp\r"
+  #host name for sending config file
+  expect  "host"
+  send -- "${BACKUPHOST}\r"
+  #Remote User name
+  expect  "user"
+  send -- "${BACKUPUSER}\r"
+  #send file and path remote
+  expect  "config.txt"
+  send -- "${BACKUPFILE}.conf\r"
+  #Only on later firmware, earlier firmware does not ask
+  #Section (all|chassis|FID# [all]): all
+  expect  "all" {send -- "all\r"}
+  #send remote password
+  expect {
+  #All done, time to quit!
+  expect {
+          default {exit 3}
+          "complete"
+  }
+  send -- "exit\r"
+  exit 0
+The backed up files will look similar to this:-
+  [backupsan@mon01 ~]$ more /home/backupsan/backupfiles/fcsw1-01-2011-10-03.conf
+  [Switch fcsw1-01 configuration saved on Oct 03 15:04:45]
+  [Boot Parameters]
+  boot.name:fcsw1-01
+  boot.ipa:172.27.206.215:ffffff00
+  boot.mac:10:00:00:05:1e:02:76:68
+  boot.device:fei
+  boot.server.name:host
+  boot.server.ipa:
+  boot.gateway.ipa:172.27.206.1
+  boot.user:user
+  boot.file:/usr/switch/firmware

Back to top

rb/brocade-backup.txt · Last modified: 09/07/2019 15:49 by andrew

Differences

Sitemap