--On Wednesday, April 07, 2004 13:08:10 -0700 "Dege, Robert C." <robert.dege AT 
ngc DOT com> wrote:

> 
> 
>> On my SDX-500 AIT-2 drives, I have 1-7 off and 8 on.  The 
>> documentation
>> says switches 1-4 & 6 are reserved and should be off, 5 is termination
>> power, 7 is HW compression (0-off,1-on), and 8 is SW 
>> compression control
>> (0 lets host enable/disable compression, 1 disables host control).  I
>> think the default is 0-6 off, 7 on , 8 off.  The manual says it is
>> capable of either fixed or variable block sizes, it doesn't mention
>> anything about enabling/disabling it in hardware; it should be up to
>> the driver.
> 
> Thanks for the detailed info about the dip switches.  My manual lists all but 
> DIP #7 as reserved.
> 
> 
>> > 3) Has anyone else using an AIT tape drive had similar problems?
>> 
>> Not me.
>> 
>> Did this problem recently start or have you never used it before?
>> Are the tapes new or old?
>> What is the exact error you're getting?
>> Can you tar or dump directly to and from the tape without errors?
>> OS and version?
> 
> This problem existed ever since I tried to do my first resetore from tape.  
> All of the tapes are less than 4 months old.
> 
> I receive 2 error messages.  When using amrecover, I receive an error message 
> to stdout as follows:
> 
> Extracting files using tape drive /dev/nst0 on host bender.
> Load tape BACKUP-22 now
> Continue [?/Y/n/s/t]? y
> 
> <snip as restore begins>
> 
> ./r50/bin/MSFD_UTILITY.EXE
> ./r50/bin/PDM_SIMULATION_APPLICATION.EXE
> ./r50/bin/PGS_CRITERIA_VALIDATOR_DRIVER.EXE
> tar: Skipping to next header
> tar: Archive contains obsolescent base-64 headers
> tar: Error exit delayed from previous errors
> extract_list - child returned non-zero status: 2
> Continue [?/Y/n/r]? y
> amrecover> exit
> 200 Good bye.

Are you recovering on the client or the server?
Are you recovering from more than one DLE?
Perhaps the data was compressed on a box using a compression program
not available on the box doing the recover.

Frank
> 
> 
> 
> The other message occurs in /tmp/amanda/amidxtaped debug file:
> 
> amrestore:   8: restoring bender._rfss_ceesim_8k_lib-r50s.20040326.0
>  
> gzip: stdin: invalid compressed data--crc error
>  
> gzip: stdin: invalid compressed data--length error
> amrestore:   9: reached end of information
> amidxtaped: time 294.174: amrestore terminated normally with status: 1
> amidxtaped: time 294.174: rewinding tape ...
> amidxtaped: time 341.208: done
> amidxtaped: time 341.208: pid 25238 finish time Tue Apr  6 10:26:33 2004
> 
> 
> -Rob



-- 
Frank Smith                                      fsmith AT hoovers DOT com
Sr. Systems Administrator                       Voice: 512-374-4673
Hoover's Online                                   Fax: 512-374-4501