scsi_vendor: 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 Debian possible default full paths are:

/usr/bin/scsi_vendor - from package: dds2tar

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