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tape: do not abort backup if tape drive does not support tape-alert-flags

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This commit is contained in:
Dietmar Maurer
2021-01-15 11:43:17 +01:00
parent 4cfb123448
commit a08a198577
2 changed files with 34 additions and 31 deletions
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54
src/tape/drive/linux_tape.rs
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@ -70,42 +70,44 @@ impl LinuxTapeDrive {
/// - for autoloader only, try to reload ejected tapes
pub fn open(&self) -> Result<LinuxTapeHandle, Error> {
let file = open_linux_tape_device(&self.path)?;
proxmox::try_block!({
let file = open_linux_tape_device(&self.path)?;
let mut handle = LinuxTapeHandle::new(file);
let mut handle = LinuxTapeHandle::new(file);
let mut drive_status = handle.get_drive_status()?;
let mut drive_status = handle.get_drive_status()?;
if !drive_status.tape_is_ready() {
// for autoloader only, try to reload ejected tapes
if self.changer.is_some() {
let _ = handle.mtload(); // just try, ignore error
drive_status = handle.get_drive_status()?;
if !drive_status.tape_is_ready() {
// for autoloader only, try to reload ejected tapes
if self.changer.is_some() {
let _ = handle.mtload(); // just try, ignore error
drive_status = handle.get_drive_status()?;
}
}
}
if !drive_status.tape_is_ready() {
bail!("tape not ready (no tape loaded)");
}
if !drive_status.tape_is_ready() {
bail!("tape not ready (no tape loaded)");
}
if drive_status.blocksize == 0 {
// device is variable block size - OK
} else {
if drive_status.blocksize != PROXMOX_TAPE_BLOCK_SIZE as u32 {
eprintln!("device is in fixed block size mode with wrong size ({} bytes)", drive_status.blocksize);
eprintln!("trying to set variable block size mode...");
if handle.set_block_size(0).is_err() {
bail!("set variable block size mod failed - device uses wrong blocksize.");
}
if drive_status.blocksize == 0 {
// device is variable block size - OK
} else {
// device is in fixed block size mode with correct block size
if drive_status.blocksize != PROXMOX_TAPE_BLOCK_SIZE as u32 {
eprintln!("device is in fixed block size mode with wrong size ({} bytes)", drive_status.blocksize);
eprintln!("trying to set variable block size mode...");
if handle.set_block_size(0).is_err() {
bail!("set variable block size mod failed - device uses wrong blocksize.");
}
} else {
// device is in fixed block size mode with correct block size
}
}
}
// Only root can set driver options, so we cannot
// handle.set_default_options()?;
// Only root can set driver options, so we cannot
// handle.set_default_options()?;
Ok(handle)
Ok(handle)
}).map_err(|err| format_err!("open drive '{}' ({}) failed - {}", self.name, self.path, err))
}
}