0
votes
0answers
51 views

how can I backup and restore of partitions and logical volumes?

This is my disk scheme sda1 /boot ext4 sda2 /somefiles ext4 sda3: lvm volgroup1/lvolume1 / ...
2
votes
0answers
46 views

How can I capture a consistent snapshot of a directory and all its children?

We have an application that periodically backs itself up to a directory on the local file system. Inside this directory are several more files and directories. I want to produce a "snapshot" of all ...
0
votes
1answer
113 views

LVM Snapshot without copy-on-write

I've been experimenting with LVM and how I can use it for managing data on my NFS server. With everything that I've read about snapshots, I am still unsure about how they perform in real life. Why ...
1
vote
2answers
42 views

Snapshot of drive

Does technology exist which allows you to take an instantanious snapshot of a drive? At the moment, I am using dd which takes a few minutes to create an image of a usb drive to my hdd. Is it ...
6
votes
1answer
2k views

ZFS Snapshot to file as Backup with rotation

I have a local FreeNAS system and want to use ZFS snapshots for backups. FreeNAS has the built-in Replication Tasks which use zfs send snapshot_name to send a snapshot to a remote system. But this ...
0
votes
3answers
359 views

How are filesystem snapshots different from simply making a copy of the files?

by doing this, # btrfs subvolume snapshot /mnt/1 /mnt/1/snapshot # tree /mnt/1 /mnt/1 ├── a ├── snapshot │ ├── a │ └── subv └── subv └── b 3 directories, 3 files We can create snapshot ...
3
votes
1answer
147 views

Snapshot large changing files

At home I have the following backup scheme: All machines daily rsync to the servers $FULL_COPY directory. The server takes snapshots of that directory daily (also weekly/monthly), keeping at most X ...
1
vote
1answer
35 views

Back up snapshots without being admin

I would like to make a back up/snapshot of a folder where I have built various programs (~4.1 GB in size). The idea is to be able to quickly restore everything in this path to it's original state in ...
4
votes
3answers
2k views

`cp -al` snapshot whose hard links get directed to a new file when edited

I am trying to take snapshots of a massive folder regularly. I have read here: http://www.mikerubel.org/computers/rsync_snapshots/#Incremental that cp -al takes a snapshot of a folder by simply ...
4
votes
3answers
2k views

Performing accurate snapshot and incremental backups to a remote server

I have a few Ubuntu (and potentially RHEL) servers I'd like to back up to a central backup server (via rsh/SSH). I'd like to do both snapshot and incremental backups. The goal is that if one of the ...
3
votes
3answers
2k views

Temporary restore LVM snapshot of root

I have a snapshot of the root filesystem that I want to boot with - bring the machine into a state it was a few days ago, run some tests and then go back to where I am right now. I tried editing ...