Re:Syncer: fast stateful file/disk data syncer written on Go
by andor on Sunday September 20, 2015 @05:09AM
(#10246983)
It should be enough to copy partition table and boot loader only once. After that, it's safer and probably faster to backup with consistent btrfs/zfs snapshots. Copying raw blocks from a writable mounted filesystem will lead to inconsistent backups.
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Re:Syncer: fast stateful file/disk data syncer written on Go
by stargrave on Sunday September 20, 2015 @05:17AM
(#10246995)
Agreed that it is preferred way, after raw dd with unmounted filesystem. But I need to be prepared for that: I am a human, I can forget some steps. Here command takes only two arguments (src and dst) -- simplicity is reliability against humand mistakes. Some data will be corrupted, but with journaling filesystems or something like ZFS this is not dangerous (unfinished transactions will be ignored).