cciss_vol_status: 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/bin/cciss_vol_status - from package: cciss_vol_status

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

On Debian possible default full paths are:

/usr/bin/cciss_vol_status - from package: cciss-vol-status

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

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