vmfs-lvm: 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 Debian possible default full paths are:

/usr/sbin/vmfs-lvm - from package: vmfs-tools

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

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