Re: [Bacula-users] Tape MTEOM error with Dell TL2000 (IBM TS3100)

Thu, 07 May 2009 06:23:31 -0700

Hi !

I had a try this morning with the btape fill again, after erasing my tapes and relabeling them. The test was successfull.

Starting a few jobs at the moment to see if things improve...

A strange thing I noticed ... which is the correct storage device parameter "RandomAccess" or "Random Access" (= no, for tapes) ... maybe it's that ?

Le 06.05.2009 19:18, Hayden Katzenellenbogen a écrit : 
Yvan,

I see that you are running a TL2000 have you run the btape fill test on
your system. If you have did you get any errors?

I seem to be getting the following one.

05-May 15:17 btape: Fatal Error at dev.c:1705 because:
dev.c:1704 Attempt to WEOF on non-appendable Volume

Thanks
H
 

-----Original Message-----
From: yvan [mailto:[email protected]] 
Sent: Monday, May 04, 2009 4:14 AM
To: [email protected]
Subject: Re: [Bacula-users] Tape MTEOM error with Dell TL2000 (IBM
TS3100)

Hi,

thank you for the advices. We have very similar configurations, and I'm 
sure I'm not too far from the solution. I tried to use your settings in 
the storage daemon config file, and the "mt" options as well, than I 
didn't try so far.

But, as soon as I put those settings, I have another error

        Hardware End of Medium = No     # defaut is Yes
        Fast Forward Space File = No    # This line required if above

which is :
3-May 02:20 setmseblx0007-sd JobId 170: Error: Unable to position to end

of data on device "IBMLTO4" (/dev/nst0): ERR=dev.c:1354 ioctl MTFSF 
error on "IBMLTO4" (/dev/nst0). ERR=Input/output error.

Strange that it works for you then ... I issued all the "mt" commands 
you wrote. Tapeinfo gives me the samed infos as you have, but it's MTFSF

error or MTEOM ...

Regards
Yvan Broccard
  
I also had very similar problems when I first started testing Bacula.
    
Now,
  
I have both TS3100 & TS3200 models running without any issues on
RedHat 4 and 5 servers. My configurations are:

Autochanger {
        Name = TS3200_1_DRV1
        Device = LTO4_1
        Changer Device = /dev/sg7       # This is mapped to the
    
AutoLoader
  
        Changer Command = "/etc/bacula/config/mtx-changer %c %o %S %a
    
%d"
  
}

Device {
        Name = LTO4_1
        Drive Index = 0
        Media Type = LTO4
        Archive Device = /dev/nst0      # Device nstX created
automatically by st daemon.
        AutoChanger = yes
        AutomaticMount = yes;    # when device opened, read it
        AlwaysOpen = yes;          # Default value yes
        RemovableMedia = yes;
        RandomAccess = no;
        Requires Mount = no;
        Maximum Open Wait = 300         # Default value
        Maximum Rewind Wait = 300       # Default value
        Maximum Changer Wait = 120      # default is 120 secs
        Maximum Job Spool Size = 2G     # default is unlimited
        Spool Directory = "/export/shared/spool"
        Label Type = IBM
        Check Labels = yes
        LabelMedia = no;
        Hardware End of Medium = No     # defaut is Yes
        Fast Forward Space File = No    # This line required if above
HEOM is set to "No"
        BSF at EOM = no                 # Default is no
        Two EOF = no
        Volume Poll Interval = 300      # Poll the drive to seek the
    
status
  
}

I also changed the LTO4 tape drives' parameters with the "mt" command.

1. mt -f /dev/st0 stsetoptions
2. mt -f /dev/st0 compression
3. mt -f /dev/st0 stsetoptions buffer-writes
4. mt -f /dev/st0 stsetoptions async-write
5. mt -f /dev/st0 stsetoptions fast-eod
6. mt -f /dev/st0 stsetoptions two-fms
7. tapeinfo -f /dev/sg2
     Product Type: Tape Drive
     Vendor ID: 'IBM     '
     Product ID: 'ULT3580-TD4     '
     Revision: '77B1'
     Attached Changer: No
     SerialNumber: '1310016341'
     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


HTH

Cheers,
Win
  
    


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