Hi,
I haven't tried on LTO5 but on LTO4, I need to run the following "mt"
parameters for the tape-drives to function properly.
Hope this helps.
Below, replace <tapedevice> with <st1> in your scenario.
----------------------------------- Start
--------------------------------------------------------
1. mt -f /dev/<tapedevice> stsetoptions
2. mt -f /dev/<tapedevice> compression
3. mt -f /dev/<tapedevice> stsetoptions buffer-writes
4. mt -f /dev/<tapedevice> stsetoptions async-write
5. mt -f /dev/<tapedevice> stsetoptions fast-eod
6. mt -f /dev/<tapedevice> stsetoptions two-fms
7. tapeinfo -f /dev/<autochanger> <=== (/dev/sg3 in your scenario)
## Following is the output from my library from the above command.
Product Type: Tape Drive
Vendor ID: 'IBM '
Product ID: 'ULT3580-TD4 '
Revision: 'xxxxxx'
Attached Changer: No
SerialNumber: 'xxxxxxxxx'
MinBlock:1
MaxBlock:16777215
SCSI ID: 2
SCSI LUN: 0
Ready: yes
BufferedMode: yes
Medium Type: 0x48
Density Code: 0x46
BlockSize: 0
DataCompEnabled: yes
DataCompCapable: yes
DataDeCompEnabled: yes
CompType: 0x1
DeCompType: 0x1
Block Position: 7920778
----------------------------------------------------------- End
-----------------------------------------------------------
Cheers,
Win
------------------------------
Message: 20
Date: Thu, 17 Nov 2011 07:44:35 -0500
From: Dan Langille <dan AT langille DOT org>
Subject: Re: [Bacula-users] Fatal error: Unable to write EOF
To: Ghislain Escorne <Ghislain.Escorne AT ujf-grenoble DOT fr>
Cc: Bacula-users AT lists.sourceforge DOT net
Message-ID: <9B56C61B-080F-41BB-AC7D-A30AFC093FAD AT langille DOT org>
Content-Type: text/plain; charset="windows-1252"
On Nov 17, 2011, at 4:46 AM, Ghislain Escorne wrote:
> Hello !
>
> I have bacula Version: 5.2.1.
> I want to backup datas on a autoloader quantum i80 with 2 drives.
What OS are you using? That can affect the configuration.
> The bacula test works correctly:
> root@backup1:~# btape -c bacula-sd.conf /dev/nst0
> .
> btape: btape.c:476 open device "Drive-i80-1" (/dev/nst0): OK
> *test
> ...
> We should be in file 5. I am at file 5. This is correct!
> Do you wish to continue with the Autochanger test? (y/n): y
> === Autochanger test ===
> The test autochanger worked!!
>
> But when I run a job I have this mess :
>
> 15-Nov 23:33 backup1-sd JobId 3: Writing spooled data to Volume. Despooling
> 107,374,192,579 bytes ?
Do small local jobs work? When setting up a new install, I prefer to
start small and increase job size later.
By small local, I mean back up the machine upon which the SD is
located. To keep things simple, do not use spooling for that job.
> 15-Nov 23:56 backup1-sd JobId 3: Fatal error: Unable to write EOF.
> ERR=dev.c:1551 ioctl MTWEOF error on "Drive-i80-1" (/dev/nst0).
> ERR=Input/output error.
There's lots in Google about this error, but I stopped looking when I
didn't locate a suggestion right away.
There were suggestions to activate a sleep in the mtx-changer file.
However, it seems that writing has already occurred by the time this
error has occurred. The sleep command is usually added to let the tape
mount full complete before writing starts.
> 15-Nov 23:56 backup1-sd JobId 3: Fatal error: spool.c:302 Fatal append error
> on device "Drive-i80-1" (/dev/nst0): ERR=dev.c:1551 ioctl MTWEOF error on
> "Drive-i80-1" (/dev/nst0). ERR=Input/output error.
>
> 15-Nov 23:56 backup1-sd JobId 3: Despooling elapsed time = 00:21:43, Transfer
> rate = 82.40 M Bytes/second
> 15-Nov 23:56 backup1-sd JobId 3: Job write elapsed time = 06:49:12, Transfer
> rate = 17.47 M Bytes/second
> 15-Nov 23:56 backup1-fd JobId 3: Error: bsock.c:389 Write error sending 65536
> bytes to Storage daemon:backup1:9103: ERR=Connection reset by peer
> 15-Nov 23:56 backup1-fd JobId 3: Fatal error: backup.c:1144 Network send
> error to SD. ERR=Connection reset by peer
Usually, these errors indicate a network problem?. but with the error
above, I think not.
> 15-Nov 23:56 backup1-dir JobId 3: Error: Bacula backup1-dir 5.2.1 (30Oct11):
>
> This is my conf :
> Autochanger {
> Name = i80
> Device = Drive-i80-1, Drive-i80-2
> #Changer Command = "/home/kern/bacula/bin/mtx-changer %c %o %S %a %d"
> Changer Command = "/etc/bacula/mtx-changer %c %o %S %a %d"
> # %c = changer device
> # %o = command (unload|load|loaded|list|slots)
> # %S = slot index (1-based)
> # %a = archive device (i.e., /dev/sd* name for tape drive)
> # %d = drive index (0-based)
> Changer Device = /dev/sg3
> }
>
> Device {
> Name = Drive-i80-1
> Drive Index = 0
> ##Device Type = Tape
> Media Type = LTO5
> Archive Device = /dev/nst0
> Autochanger = yes
> LabelMedia = no;
> AutomaticMount = yes;
> AlwaysOpen = yes;
> # RemovableMedia = yes;
> # RandomAccess = no;
> Spool Directory = /data/bacula/spool
After you get writes working, consider using different directories for
each drive. I can't recall why or even if this is a good suggestion.
> Maximum Spool Size = 100 G #
> # Autoselect = yes
> Maximum Changer Wait = 6000
> Alert Command = "sh -c 'tapeinfo -f %c |grep TapeAlert|cat'"
> }
>
>
> Device {
> Name = Drive-i80-2
> Drive Index = 1
> ## Device Type = Tape
> Media Type = LTO5
> Archive Device = /dev/nst1
> Autochanger = yes
> LabelMedia = no;
> AutomaticMount = yes;
> AlwaysOpen = yes;
> # RemovableMedia = yes;
> # RandomAccess = no;
> Spool Directory = /data/bacula/spool
> Maximum Spool Size = 100 G #
> # Autoselect = yes
> Maximum Changer Wait = 6000
> Alert Command = "sh -c 'tapeinfo -f %c |grep TapeAlert|cat'"
> }
>
> Thank you for your help
>
> ------------------------------------------------------------------------------
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
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------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure
contains a definitive record of customers, application performance,
security threats, fraudulent activity, and more. Splunk takes this
data and makes sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-novd2d
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