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توضیحات

A backup manager which can back up a large set of files to a number of offline disks

ویژگی	مقدار
سیستم عامل	-
نام فایل	distbackup-1.0.9
نام	distbackup
نسخه کتابخانه	1.0.9
نگهدارنده	[]
ایمیل نگهدارنده	[]
نویسنده	Katie Rust
ایمیل نویسنده	katie@ktpanda.org
آدرس صفحه اصلی	https://ktpanda.org/software/distbackup
آدرس اینترنتی	https://pypi.org/project/distbackup/
مجوز	MIT License

Distbackup ========== Distbackup is a tool that can back up a large set of files to a number of offline disks. Only one backup disk needs to be connected at a time for distbackup to operate on it. Distbackup will attempt to distribute redundant copies of files across the backup disks, as long as there is room. Installation ------------ Distbackup can be installed using PIP: ``` python3 -m pip install distbackup ``` If it fails, make sure you have Python, PIP, and OpenSSL development libraries installed. On Ubuntu, run ``` sudo apt install python3-pip python3-dev python3-wheel libssl-dev ``` Distbackup uses `argcomplete` to assist with tab completion in your shell. To enable it (for `bash`), run: ``` mkdir -p ~/.local/share/bash-completion/completions/ register-python-argcomplete --shell bash dsb > ~/.local/share/bash-completion/completions/dsb ``` Argcomplete also supports `tcsh` and `fish`. Run `register-python-argcomplete --help` for more info. How it works ------------ Distbackup maintains a database (SQLite) which contains metadata about every file in the source set, including its name, last modified date, and a SHA256 hash of its contents. The hash is then used to uniquely identify an "object", which is then copied to one or more backup disks, along with a copy of the database itself. The files on this backup disk are stored only by their hash, so a restore requires reading the database to reconstruct the original file structure. The file structure on the backup disk looks like this: ``` ├── distbackup-disk.json ├── distbackup.sqlite ├── distbackup-objects │ ├── 000 │ │ ├── 0005e3d2a9216a465148b424de67297ad5ce65b95289294f3ef53c856ca55088 │ │ └── 000c00bad31d126b054c6ec7f3e02b27c0f9a4d579f987d3c4f879cee1bacb81 │ ├── 004 │ │ ├── 0046066f500854ebc1eb5d679a7164235de42efdf4dfbacff70d9bdb5a2d65db │ │ └── 004cf775fda2783974afc1599c33b77228f04f7c053760f4a9552927207a064e │ ├── 007 │ │ ├── 00702164a628a9e65266f4aafec2e1faebc42f0cc2145408a74c3feae39bef6d │ │ └── 0077c553ae28326ef59c06e3743a6ddf5e046d9482eb9becfa8e06ff5bd37e2e │ ├── 008 │ │ └── 0083cc2e1d1d989795d02aa47d4dd42b9f90b644d025cece0ab3c953b3a4fa09 . . . ``` Since objects are identified by their hash, their contents are immutable. This means that if a source file changes, it will have a new hash and therefore refer to a new object. Distbackup works with one backup disk at a time. First, it will delete any orphaned objects (i.e. files that have been deleted or changed on the source), then it will copy any new objects to the disk, and then, if it still has room, it will try to make redundant copies of objects that have already been copied to other disks. It may delete redundant objects off the disk to make room, as long as the overall redundancy is not reduced. For example, if there is an object which already has one copy on another disk, it may decide to delete an object that has two copies on other disks to make room for a second copy of the first object. Getting started --------------- All distbackup commands are accessed via `dsb`. You can run `dsb --help` at any time to get a list of commands. Distbackup keeps its data in an SQLite database stored in `~/.config/distbackup/`. If you want to use a different path, you can set the `DISTBACKUP_PATH` environment variable or override it with `-d`. The first time you run distbackup, it will create the database automatically. First, you need to decide what files you want to back up. You can back up a single folder or multiple folders spread out across different drives. You can "mount" a folder as a specific path under the virtual tree with the `dsb source map` command: ``` # Make /media/photos/DCIM appear as /photos in the backup set dsb source map /photos /media/photos/DCIM # Another path, from your home folder dsb source map /videos ~/Videos/recorded/ # You can "mount" directories within other virtual directories. dsb source map /videos/stream-archive ~/livestream-archive ``` Once you have your source map set up the way you want it, run `dsb update` to scan the source folders for files and record their metadata in the database. The first time you run it, it will have to read every file to generate a hash. You can let this process run in the background while you continue setup. If the hashing process is interrupted, it will pick up where it left off the next time you run `dsb update` and won't have to rehash any files unless their contents have changed. Next, you need to find some disks to use as a backup. Each disk needs to have a unique name, even if it's just `distbackup-01`, `distbackup-02`, etc. I highly recommend physically labelling each disk with its name so it's easy to find. I also recommend setting the volume label on the disk as well, though distbackup does not require that. Note: If your disks are formatted as ext4, you should set the "reserved blocks" to zero. By default, ext4 reserves 5% for the root user, which for a 6TB disk is 300GB, an insane amount for a data disk. You can use `tune2fs -m 0` to clear it. Once you have your disk connected, formatted, and mounted, it's time to make distbackup aware of it: ``` ktpanda@desktop:~$ dsb disk add distbackup-01 /media/distbackup-01/distbackup/ Added disk distbackup-01: UUID: db74b831-bd09-434f-ac9b-bc427dfc5628 Nexus index: 0 Size: 7,927,384,932,352 Mount point (current): /media/distbackup-01 Relative path from mountpoint: distbackup ``` The size, if not specified, defaults to 10GB less than the total size of the disk. If you want to set a specific size (e.g. to reserve more space for other files), you can specify `--size` when adding the disk or with the `dsb disk set` command: ``` dsb disk set distbackup-01 --size 7.4T ``` Once you have all your disks set up, and `dsb update` completes, you're ready to start backing up! Just run `dsb backup distbackup-01`, and it will start copying files until it hits the size limit of the disk, or it runs out of files to copy.

نیازمندی

مقدار	نام
>=2.0.0	argcomplete
>=5.9.0	psutil
>=1.0.28	ktpanda-modules
>=1.0.5	hashcopy

زبان مورد نیاز

مقدار	نام
>=3.8	Python

نحوه نصب

نصب پکیج whl distbackup-1.0.9:

pip install distbackup-1.0.9.whl

نصب پکیج tar.gz distbackup-1.0.9:

pip install distbackup-1.0.9.tar.gz