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tape: only query volume stats if we can read MAM

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This commit is contained in:
Dietmar Maurer 2021-01-06 09:20:36 +01:00
parent ef942e04c2
commit c4b2b9ab41
1 changed files with 7 additions and 7 deletions
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14
src/tape/drive/linux_tape.rs
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@ -238,16 +238,16 @@ impl LinuxTapeHandle {
status.manufactured = Some(usage.manufactured);
status.bytes_read = Some(usage.bytes_read);
status.bytes_written = Some(usage.bytes_written);
}
if let Ok(volume_stats) = self.volume_statistics() {
if let Ok(volume_stats) = self.volume_statistics() {
status.medium_passes = Some(std::cmp::max(
volume_stats.beginning_of_medium_passes,
volume_stats.middle_of_tape_passes,
));
status.medium_passes = Some(std::cmp::max(
volume_stats.beginning_of_medium_passes,
volume_stats.middle_of_tape_passes,
));
status.volume_mounts = Some(volume_stats.volume_mounts);
status.volume_mounts = Some(volume_stats.volume_mounts);
}
}
}