dump_mfts: 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/dump_mfts - from package: infiniband-diags

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

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