76 lines
1.7 KiB
Rust
76 lines
1.7 KiB
Rust
//! Magnetic tape backup
|
|
|
|
use anyhow::{format_err, Error};
|
|
|
|
use proxmox::tools::fs::{
|
|
create_path,
|
|
CreateOptions,
|
|
};
|
|
|
|
pub mod sgutils2;
|
|
|
|
pub mod file_formats;
|
|
|
|
mod tape_write;
|
|
pub use tape_write::*;
|
|
|
|
mod tape_read;
|
|
pub use tape_read::*;
|
|
|
|
mod helpers;
|
|
pub use helpers::*;
|
|
|
|
mod inventory;
|
|
pub use inventory::*;
|
|
|
|
mod changer;
|
|
pub use changer::*;
|
|
|
|
mod drive;
|
|
pub use drive::*;
|
|
|
|
mod online_status_map;
|
|
pub use online_status_map::*;
|
|
|
|
mod media_pool;
|
|
pub use media_pool::*;
|
|
|
|
mod media_catalog;
|
|
pub use media_catalog::*;
|
|
|
|
mod chunk_archive;
|
|
pub use chunk_archive::*;
|
|
|
|
mod snapshot_archive;
|
|
pub use snapshot_archive::*;
|
|
|
|
mod pool_writer;
|
|
pub use pool_writer::*;
|
|
|
|
/// Directory path where we store all tape status information
|
|
pub const TAPE_STATUS_DIR: &str = "/var/lib/proxmox-backup/tape";
|
|
|
|
/// We limit chunk archive size, so that we can faster restore a
|
|
/// specific chunk (The catalog only store file numbers, so we
|
|
/// need to read the whole archive to restore a single chunk)
|
|
pub const MAX_CHUNK_ARCHIVE_SIZE: usize = 4*1024*1024*1024; // 4GB for now
|
|
|
|
/// To improve performance, we need to avoid tape drive buffer flush.
|
|
pub const COMMIT_BLOCK_SIZE: usize = 128*1024*1024*1024; // 128 GiB
|
|
|
|
|
|
/// Create tape status dir with correct permission
|
|
pub fn create_tape_status_dir() -> Result<(), Error> {
|
|
let backup_user = crate::backup::backup_user()?;
|
|
let mode = nix::sys::stat::Mode::from_bits_truncate(0o0640);
|
|
let opts = CreateOptions::new()
|
|
.perm(mode)
|
|
.owner(backup_user.uid)
|
|
.group(backup_user.gid);
|
|
|
|
create_path(TAPE_STATUS_DIR, None, Some(opts))
|
|
.map_err(|err: Error| format_err!("unable to create tape status dir - {}", err))?;
|
|
|
|
Ok(())
|
|
}
|