Hi Dustin, I tested amtapetype with version 2.6.1p1 with same HW. It goes through the compressions test in the beginning where I got error in the Amanda 3.1.0beta2 version, but then when it comes to end of tape the driver returns DEVICE_STATUS_DEVICE_ERROR with causes short write on tape device. But see below what mt -f status returns - EOT.
Thanks Gunnar bash-3.00# /opt/sfw/sbin/amtapetype -f tape:/dev/rmt/0n Applying heuristic check for compression. Wrote random (uncompressible) data at 9076215.87301587 bytes/sec Wrote fixed (compressible) data at 38120106.6666667 bytes/sec Compression: enabled Writing one file to fill the volume. Wrote less than 100MB to the device: Error writing block: Error 0 # mt -f /dev/rmt/0n status HP Ultrium LTO 3 tape drive: sense key(0x13)= EOT residual= 0 retries= 0 file no= 2 block no= 0 1274535946.994402: amtapetype: Final linkage: <xfersourceran...@438858> -(PULL_BUFFER)-><xferdestdev...@4394b0> 1274578788.428012: amtapetype: Device /dev/rmt/0n error = 'Mysterious short write on tape device: Tried 32768, got 0' 1274578788.458837: amtapetype: Device /dev/rmt/0n setting status flag(s): DEVICE_STATUS_DEVICE_ERROR 1274578788.459176: amtapetype: Device /dev/rmt/0n error = 'Error writing block:Error 0' 1274578788.459231: amtapetype: Device /dev/rmt/0n setting status flag(s): DEVICE_STATUS_DEVICE_ERROR 1274578788.498811: amtapetype: Cancelling <x...@3533f0 (<xfersourceran...@438858> -> <xferdestdev...@4394b0>)> -----Ursprungligt meddelande----- Från: djmit...@gmail.com [mailto:djmit...@gmail.com] För Dustin J. Mitchell Skickat: den 21 maj 2010 16:44 Till: Gunnarsson, Gunnar Kopia: amanda-users@amanda.org Ämne: Re: amtapetype Amanda 3.1.0beta2 Ah - after the device has encountered an error, it won't give properties anymore (case doesn't matter). Try moving the block_size up in the script: diff --git a/device-src/amtapetype.pl b/device-src/amtapetype.pl index 5bd7411..80c0ad7 100644 --- a/device-src/amtapetype.pl +++ b/device-src/amtapetype.pl @@ -117,6 +117,9 @@ sub write_one_file(%) { my $pattern = $options{'PATTERN'} || 'FIXED'; my $max_time = $options{'MAX_TIME'} || 0; + # get the block size now, while the device is still working + my $block_size = $device->property_get("block_size"); + # start the device my $hdr = Amanda::Header->new(); $hdr->{type} = $Amanda::Header::F_DUMPFILE; @@ -182,7 +185,6 @@ sub write_one_file(%) { # OK, we finished, update statistics (even if we saw an error) my $blocks_written = $device->block(); - my $block_size = $device->property_get("block_size"); $stats->{$pattern}->{BYTES} += $blocks_written * $block_size; $stats->{$pattern}->{FILES} += 1; $stats->{$pattern}->{TIME} += $duration; Let me know if that helps? Thanks for your patience! Dustin -- Open Source Storage Engineer http://www.zmanda.com
