Hi Martin,
I've just checked and data compression is enabled as expected:
tapeinfo -f /dev/nst0
Product Type: Tape Drive
Vendor ID: 'QUANTUM '
Product ID: 'ULTRIUM 4 '
Revision: '2210'
Attached Changer API: No
SerialNumber: 'PW1007AMJ50074'
MinBlock: 1
MaxBlock: 16777215
SCSI ID: 0
SCSI
Hi Martin,
This is what I'm getting from the command:
mt -f /dev/nst0 status
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x46 (LTO-4).
Soft error count since last status=0
General status bits on (4101):
BOT ONLINE IM_REP_EN
So
Ah, OK (mt shows compression on FreeBSD).
You could try tapeinfo (part of the mtx package). I think you need to have a
tape loaded to make it work.
__Martin
> On Wed, 14 Feb 2018 14:47:59 +, Adam Weremczuk said:
>
> Hi Martin,
>
> This is what I'm getting from the command:
>
> mt
Possibly "mt status" will show whether hardware compression is enabled?
If you are getting close to 1.6TB per LTO-4 tape (according to JobBytes) then
I think hardware compression must be enabled.
The mt command also allows you to control compression (I'm not sure if you can
change it in the
Thank you Martin.
We are using a pretty old Bacula 5.2.6.
This version already appears to support compressions on clients.
But it's currently not defined for any.
I'm assuming hardware compression is enabled on the LTO-4 tape drive.
I've checked:
- Device and Storage directives,
- "status
JobBytes is the number of bytes sent from the FD (client) to the SD. If you
are using Bacula's software compression (the compression option in the
Fileset), then that will be the size after compression.
Bacula's software compression is always done in the FD.
You can control concurrency of
Hi all,
Last night a tape filled so I'm spending most of today investigating the
cause and ensuring the next run completes fine.
When executing "list jobname=" from the console I'm presented with 2
columns: JobFiles and JobBytes.
Is JobBytes expected to show the volume read from the client
Hello,
Is the value of JobBytes the number of compressed or un-compressed bytes
backed up? Also, what is ReadBytes? I can't seem to find a reference in
the manual. If it's there, could someone point me to the page in the 7.0.5
pdf manual.
Warmest regards,
-craig
