Every time that you reboot your linux server, udev links up the physical
devices. They will not necessarily be the same each time which is what you are
seeing. You have to use a persistent name in order to keep the same devices.
There are a couple of ways to do that. Use the long paths found in
/dev/tape/by-id or create your own rules with friendly symlinks to names that
you use in your Bacula configuration. Even with one autochanger, you will want
to include that and all of your tape devices.
lsscsi shows what you currently have.
scsi_id —whitelisted —device=/dev/st0 <-- repeat for each tape device and
your autochanger device (use /dev/sg#) – this gets you the unique scsi id to be
used in the udev rules
In your udev rules make sure that you use the nst* reference for tape, it is
the no-rewind device. Generally the rules file goes in /etc/udev/rules.d (may
be different for your distro). Name it something meaningful to you. Use
unique names, not generic ones like "Drive1". Here are a couple of examples
for entries – substitute your scsi id output where RESULT==, I like to use * as
a catchall for the scsi id:
KERNEL=="sg*", SUBSYSTEM=="scsi_generic", PROGRAM="/sbin/scsi_id
--whitelisted --replace-whitespace /dev/$name",
RESULT=="3221f0090a5004532", ATTRS{type}=="8", SYMLINK+="mychanger" <-- your
unique changer name
KERNEL=="nst*[0-9]", SUBSYSTEM=="scsi_tape", PROGRAM="/sbin/scsi_id
--whitelisted --replace-whitespace /dev/$name",
RESULT=="*321110090a5004532*", SYMLINK+="mytape-0" <-- your unique tape drive
name for your first drive – repeat for remaining drives
There are commands to play with when manipulating the rules and testing,
however, I recommend rebooting – it's the final verification. Once you use the
command line commands (mtx and mt) and find they behave consistently, then get
Bacula involved.
Patti Clark
Linux System Administrator
R&D Systems Support Oak Ridge National Laboratory
From: RAT <robert3t AT netzero DOT net<mailto:robert3t AT netzero DOT net>>
Date: Saturday, September 20, 2014 at 5:19 PM
To: "rsvancara AT gmail DOT com<mailto:rsvancara AT gmail DOT com>" <rsvancara
AT gmail DOT com<mailto:rsvancara AT gmail DOT com>>, "bacula-users AT
lists.sourceforge DOT net<mailto:bacula-users AT lists.sourceforge DOT net>"
<bacula-users AT lists.sourceforge DOT net<mailto:bacula-users AT
lists.sourceforge DOT net>>
Subject: Re: [Bacula-users] autochanger woes
I think you're correct. Although I'm not sure exactly how to remedy.
[root@bacula1 sbin]# vi /usr/libexec/bacula/mtx-changer
[root@bacula1 sbin]# ./bconsole
Connecting to Director localhost:9101
1000 OK: bacula-dir Version: 5.2.13 (19 February 2013)
Enter a period to cancel a command.
*label barcodes
Automatically selected Catalog: MyCatalog
Using Catalog "MyCatalog"
The defined Storage resources are:
1: File
2: DL4000
Select Storage resource (1-2): 2
Connecting to Storage daemon DL4000 at bacula1.usi.edu:9103 ...
Enter autochanger drive[0]: 4
Connecting to Storage daemon DL4000 at bacula1.usi.edu:9103 ...
3306 Issuing autochanger "slots" command.
Device "Drive1" has 48 slots.
Connecting to Storage daemon DL4000 at bacula1.usi.edu:9103 ...
3306 Issuing autochanger "list" command.
The following Volumes will be labeled:
Slot Volume
==============
10 000047L6
11 000038L6
14 000039L6
15 000053L6
18 000023L6
19 000059L6
Do you want to label these Volumes? (yes|no): yes
Defined Pools:
1: Default
2: File
3: Scratch
Select the Pool (1-3): 3
Connecting to Storage daemon DL4000 at bacula1.usi.edu:9103 ...
Sending label command for Volume "000047L6" Slot 10 ...
3307 Issuing autochanger "unload slot 19, drive 0" command.
3995 Bad autochanger "unload slot 19, drive 0": ERR=Child exited with code 1
Results=Unloading drive 0 into Storage Element 19...mtx: Request Sense: Long
Report=yes
mtx: Request Sense: Valid Residual=no
mtx: Request Sense: Error Code=70 (Current)
mtx: Request Sense: Sense Key=Illegal Request
mtx: Request Sense: FileMark=no
mtx: Request Sense: EOM=no
mtx: Request Sense: ILI=no
mtx: Request Sense: Additional Sense Code = 53
mtx: Request Sense: Additional Sense Qualifier = 03
mtx: Request Sense: BPV=no
mtx: Request Sense: Error in CDB=no
mtx: Request Sense: SKSV=no
MOVE MEDIUM from Element Address 256 to 4114 Failed
Label command failed for Volume 000047L6.
Sending label command for Volume "000038L6" Slot 11 ...
3307 Issuing autochanger "unload slot 19, drive 0" command.
3995 Bad autochanger "unload slot 19, drive 0": ERR=Child exited with code 1
Results=Unloading drive 0 into Storage Element 19...mtx: Request Sense: Long
Report=yes
mtx: Request Sense: Valid Residual=no
mtx: Request Sense: Error Code=70 (Current)
mtx: Request Sense: Sense Key=Illegal Request
mtx: Request Sense: FileMark=no
mtx: Request Sense: EOM=no
mtx: Request Sense: ILI=no
mtx: Request Sense: Additional Sense Code = 53
mtx: Request Sense: Additional Sense Qualifier = 03
mtx: Request Sense: BPV=no
mtx: Request Sense: Error in CDB=no
mtx: Request Sense: SKSV=no
MOVE MEDIUM from Element Address 256 to 4114 Failed
Label command failed for Volume 000038L6.
Sending label command for Volume "000039L6" Slot 14 ...
3307 Issuing autochanger "unload slot 19, drive 0" command.
3995 Bad autochanger "unload slot 19, drive 0": ERR=Child exited with code 1
Results=Unloading drive 0 into Storage Element 19...mtx: Request Sense: Long
Report=yes
mtx: Request Sense: Valid Residual=no
mtx: Request Sense: Error Code=70 (Current)
mtx: Request Sense: Sense Key=Illegal Request
mtx: Request Sense: FileMark=no
mtx: Request Sense: EOM=no
mtx: Request Sense: ILI=no
mtx: Request Sense: Additional Sense Code = 53
mtx: Request Sense: Additional Sense Qualifier = 03
mtx: Request Sense: BPV=no
mtx: Request Sense: Error in CDB=no
mtx: Request Sense: SKSV=no
MOVE MEDIUM from Element Address 256 to 4114 Failed
Label command failed for Volume 000039L6.
Sending label command for Volume "000053L6" Slot 15 ...
3307 Issuing autochanger "unload slot 19, drive 0" command.
3995 Bad autochanger "unload slot 19, drive 0": ERR=Child exited with code 1
Results=Unloading drive 0 into Storage Element 19...mtx: Request Sense: Long
Report=yes
mtx: Request Sense: Valid Residual=no
mtx: Request Sense: Error Code=70 (Current)
mtx: Request Sense: Sense Key=Illegal Request
mtx: Request Sense: FileMark=no
mtx: Request Sense: EOM=no
mtx: Request Sense: ILI=no
mtx: Request Sense: Additional Sense Code = 53
mtx: Request Sense: Additional Sense Qualifier = 03
mtx: Request Sense: BPV=no
mtx: Request Sense: Error in CDB=no
mtx: Request Sense: SKSV=no
MOVE MEDIUM from Element Address 256 to 4114 Failed
Label command failed for Volume 000053L6.
Sending label command for Volume "000023L6" Slot 18 ...
3307 Issuing autochanger "unload slot 19, drive 0" command.
3995 Bad autochanger "unload slot 19, drive 0": ERR=Child exited with code 1
Results=Unloading drive 0 into Storage Element 19...mtx: Request Sense: Long
Report=yes
mtx: Request Sense: Valid Residual=no
mtx: Request Sense: Error Code=70 (Current)
mtx: Request Sense: Sense Key=Illegal Request
mtx: Request Sense: FileMark=no
mtx: Request Sense: EOM=no
mtx: Request Sense: ILI=no
mtx: Request Sense: Additional Sense Code = 53
mtx: Request Sense: Additional Sense Qualifier = 03
mtx: Request Sense: BPV=no
mtx: Request Sense: Error in CDB=no
mtx: Request Sense: SKSV=no
MOVE MEDIUM from Element Address 256 to 4114 Failed
Label command failed for Volume 000023L6.
Sending label command for Volume "000059L6" Slot 19 ...
3910 Unable to open device ""Drive1" (/dev/st0)": ERR=dev.c:513 Unable to open
device "Drive1" (/dev/st0): ERR=No medium found
Label command failed for Volume 000059L6.
I also tried this test with Bacula off:
Changed nst2,3,6,7 to st0,1,2,3 Per lsscli output
Turned off Bacula & tested drives:
[root@bacula1 sbin]# lsscsi
[0:2:0:0] disk DELL PERC H710P 3.13 /dev/sda
[0:2:1:0] disk DELL PERC H710P 3.13 /dev/sdb
[1:0:0:0] tape IBM ULT3580-HH6 D8E5 /dev/st0
[1:0:1:0] tape IBM ULT3580-HH6 D8E5 /dev/st1
[1:0:1:1] mediumx IBM 3573-TL C.30 /dev/sch0
[6:0:0:0] cd/dvd TSSTcorp DVD-ROM SN-108FB D150 /dev/sr0
[8:0:0:0] tape IBM ULT3580-HH6 D8E5 /dev/st2
[8:0:1:0] tape IBM ULT3580-HH6 D8E5 /dev/st3
[root@bacula1 sbin]# ./btape -c /etc/bacula/bacula-sd.conf /dev/st0
Tape block granularity is 1024 bytes.
btape: butil.c:290-0 Using device: "/dev/st0" for writing.
20-Sep 16:04 btape: Fatal Error at device.c:298 because:
dev open failed: dev.c:513 Unable to open device "Drive1" (/dev/st0): ERR=No
medium found
20-Sep 16:04 btape JobId 0: Fatal error: butil.c:195 Cannot open "Drive1"
(/dev/st0)
[root@bacula1 sbin]# ./btape -c /etc/bacula/bacula-sd.conf /dev/st1
Tape block granularity is 1024 bytes.
btape: butil.c:290-0 Using device: "/dev/st1" for writing.
btape: btape.c:477-0 open device "Drive2" (/dev/st1): OK
*test
=== Write, rewind, and re-read test ===
I'm going to write 10000 records and an EOF
then write 10000 records and an EOF, then rewind,
and re-read the data to verify that it is correct.
This is an *essential* feature ...
btape: btape.c:1157-0 Wrote 10000 blocks of 64412 bytes.
btape: btape.c:609-0 Wrote 1 EOF to "Drive2" (/dev/st1)
btape: btape.c:1173-0 Wrote 10000 blocks of 64412 bytes.
btape: btape.c:609-0 Wrote 1 EOF to "Drive2" (/dev/st1)
btape: btape.c:1215-0 Rewind OK.
10000 blocks re-read correctly.
Got EOF on tape.
10000 blocks re-read correctly.
=== Test Succeeded. End Write, rewind, and re-read test ===
btape: btape.c:1283-0 Block position test
btape: btape.c:1295-0 Rewind OK.
Reposition to file:block 0:4
Block 5 re-read correctly.
Reposition to file:block 0:200
Block 201 re-read correctly.
Reposition to file:block 0:9999
Block 10000 re-read correctly.
Reposition to file:block 1:0
Block 10001 re-read correctly.
Reposition to file:block 1:600
Block 10601 re-read correctly.
Reposition to file:block 1:9999
Block 20000 re-read correctly.
=== Test Succeeded. End Write, rewind, and re-read test ===
=== Append files test ===
This test is essential to Bacula.
I'm going to write one record in file 0,
two records in file 1,
and three records in file 2
btape: btape.c:579-0 Rewound "Drive2" (/dev/st1)
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:609-0 Wrote 1 EOF to "Drive2" (/dev/st1)
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:854-0 Backspaced over EOF OK.
btape: btape.c:859-0 Backspace record OK.
btape: btape.c:877-0
Block re-read correct. Test succeeded!
=== End Write, backup, and re-read test ===
=== Forward space files test ===
This test is essential to Bacula.
I'm going to write five files then test forward spacing
btape: btape.c:579-0 Rewound "Drive2" (/dev/st1)
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:609-0 Wrote 1 EOF to "Drive2" (/dev/st1)
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:609-0 Wrote 1 EOF to "Drive2" (/dev/st1)
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:609-0 Wrote 1 EOF to "Drive2" (/dev/st1)
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:609-0 Wrote 1 EOF to "Drive2" (/dev/st1)
btape: btape.c:1914-0 Wrote one record of 64412 bytes.
btape: btape.c:1916-0 Wrote block to device.
btape: btape.c:609-0 Wrote 1 EOF to "Drive2" (/dev/st1)
btape: btape.c:579-0 Rewound "Drive2" (/dev/st1)
btape: btape.c:1641-0 Now forward spacing 1 file.
We should be in file 1. I am at file 1. This is correct!
btape: btape.c:1653-0 Now forward spacing 2 files.
We should be in file 3. I am at file 3. This is correct!
btape: btape.c:579-0 Rewound "Drive2" (/dev/st1)
btape: btape.c:1666-0 Now forward spacing 4 files.
We should be in file 4. I am at file 4. This is correct!
btape: btape.c:1684-0 Now forward spacing 1 more file.
We should be in file 5. I am at file 5. This is correct!
=== End Forward space files test ===
Ah, I see you have an autochanger configured.
To test the autochanger you must have a blank tape
that I can write on in Slot 1.
Do you wish to continue with the Autochanger test? (y/n): *y
btape: btape.c:2939-0 "y" is an invalid command
*yes
btape: btape.c:2939-0 "yes" is an invalid command
*n
btape: btape.c:2939-0 "n" is an invalid command
*auto
Ah, I see you have an autochanger configured.
To test the autochanger you must have a blank tape
that I can write on in Slot 1.
Do you wish to continue with the Autochanger test? (y/n): y
=== Autochanger test ===
3301 Issuing autochanger "loaded" command.
Nothing loaded in the drive. OK.
3303 Issuing autochanger "load 1 1" command.
3993 Bad autochanger command: /usr/libexec/bacula/mtx-changer /dev/sg4 load 1
/dev/st1 1
3993 result="Loading media from Storage Element 1 into drive 1...Source Element
Address 4096 is Empty
": ERR=Child exited with code 1
You must correct this error or the Autochanger will not work.
None of the other "drives" tested at all. I assume I accidentally, somehow,
had a tape in the 2nd drive.
[root@bacula1 sbin]# ./btape -c /etc/bacula/bacula-sd.conf /dev/st2
Tape block granularity is 1024 bytes.
btape: butil.c:290-0 Using device: "/dev/st2" for writing.
20-Sep 16:10 btape: Fatal Error at device.c:298 because:
dev open failed: dev.c:513 Unable to open device "Drive3" (/dev/st2): ERR=No
medium found
20-Sep 16:10 btape JobId 0: Fatal error: butil.c:195 Cannot open "Drive3"
(/dev/st2)
[root@bacula1 sbin]# ./btape -c /etc/bacula/bacula-sd.conf /dev/st3
Tape block granularity is 1024 bytes.
btape: butil.c:290-0 Using device: "/dev/st3" for writing.
20-Sep 16:10 btape: Fatal Error at device.c:298 because:
dev open failed: dev.c:513 Unable to open device "Drive4" (/dev/st3): ERR=No
medium found
20-Sep 16:10 btape JobId 0: Fatal error: butil.c:195 Cannot open "Drive4"
(/dev/st3)
Robert Threet
http://yesistilluseperl.blogspot.com/
Please note: message attached
From: Randall Svancara <rsvancara AT gmail DOT com<mailto:rsvancara AT gmail
DOT com>>
To: RAT <robert3t AT netzero DOT net<mailto:robert3t AT netzero DOT net>>
Subject: Re: [Bacula-users] autochanger woes
Date: Thu, 18 Sep 2014 15:44:58 -0700
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