sm_notify.ganesha: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/sm_notify.ganesha - from package: nfs-ganesha-utils

You may install the required package with command yum install {package}
Error in other languages:
sm_notify.ganesha: bevel nie gevind nie
sm_notify.ganesha: comandă negăsită
sm_notify.ganesha: comando não encontrado
sm_notify.ganesha: commande introuvable
sm_notify.ganesha: command not found
sm_notify.ganesha: käsku ei ole
sm_notify.ganesha: không tìm thấy lệnh
sm_notify.ganesha: komanda nerasta
sm_notify.ganesha: Kommando nicht gefunden.
sm_notify.ganesha: kommandot finns inte
sm_notify.ganesha: komut yok
sm_notify.ganesha: nie znaleziono polecenia
sm_notify.ganesha: níor aimsíodh an t-ordú
sm_notify.ganesha: no se encontró la orden
sm_notify.ganesha: no s'ha trobat l'ordre
sm_notify.ganesha: opdracht niet gevonden
sm_notify.ganesha: parancs nem található
sm_notify.ganesha: perintah tidak ditemukan
sm_notify.ganesha: príkaz nenájdený
sm_notify.ganesha: příkaz nenalezen
sm_notify.ganesha: команда не найдена
sm_notify.ganesha: командата не е открита
sm_notify.ganesha: 命令找不到
sm_notify.ganesha: コマンドが見つかりません