clusvcadm: command not found

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/sbin/clusvcadm - from package: rgmanager

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/sbin/clusvcadm - from package: rgmanager

You may install the required package with command apt-get install {package}

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