On Thu, Mar 14, 2013 at 3:04 PM, Sergio Belkin <sebelk AT gmail DOT com> wrote:
> Hi folks,
>
> The performance is very poor, its around 6MB/s !!!
> The tape device is an IBM ULT3580-HH5
>
> Host: scsi3 Channel: 00 Id: 00 Lun: 00
>   Vendor: IBM      Model: ULT3580-HH5      Rev: BBN3
>   Type:   Sequential-Access                ANSI SCSI revision: 06
>
> Bacula version is 5.2.13
>
> My sd daemon config:
>
> Storage {                             # definition of myself
>   Name = clair.example.edu-sd
>   SDPort = 9103                  # Director's port
>   WorkingDirectory = "/usr/local/opt/bacula/working"
>   Pid Directory = "/var/run"
>   Maximum Concurrent Jobs = 20
> }
> Director {
>   Name = noc-dir
>   Password = "something"
> }
> Director {
>   Name = clair.example.edu-mon
>   Password = "something"
>   Monitor = yes
> }
> Device {
>   Name = LTO5
>   Media Type = LTO-4
>   Archive Device = /dev/IBMtape0n
>   AutomaticMount = yes;               # when device opened, read it
>   AlwaysOpen = yes;
>   RemovableMedia = yes;
>   RandomAccess = no;
>   Maximum File Size = 200GB
>  Alert Command = "sh -c 'smartctl -d scsi -H -l error /dev/sg6'"
> }
> Messages {
>   Name = Standard
>   director = clair.example.edu-dir = all
>
>
> Using netcat I've found that network speed is around 100 MB/s
>
> Could you help to find a solution?

You need to enable spooling and to run your jobs concurrently. Also
set the Maximum block size and Minimum block size. On top of that I
would not have set Maximum File Size = 200GB set that to a few GB or
leave that parameter alone.

John

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