Mirrored Differential Backup Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Simple Backup SolutionHow to re-add accidentally removed hard drive in RAID5Add disk and use software raidMultiple Independent BTRFS VolumesWill a fresh installation of Ubuntu recognize two drives that have been in a RAID?14.10 backup folder to another drive in the same machine?Adding a Second Hard Drive to a Ubuntu ServerInstalling alongside windows on raid 0Partition drives before RAID1 or afterUbuntu Server 18.04 software RAID 1 definitionZFS Pool out of whack

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Mirrored Differential Backup



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Simple Backup SolutionHow to re-add accidentally removed hard drive in RAID5Add disk and use software raidMultiple Independent BTRFS VolumesWill a fresh installation of Ubuntu recognize two drives that have been in a RAID?14.10 backup folder to another drive in the same machine?Adding a Second Hard Drive to a Ubuntu ServerInstalling alongside windows on raid 0Partition drives before RAID1 or afterUbuntu Server 18.04 software RAID 1 definitionZFS Pool out of whack



.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








1















I have a home sever running Ubuntu server. It has two 12TB drives in it. What I'd like to do is simply run a backup in such a way that the second drive is just an exact duplicate of the first, but without copying the entire drive every single time. My idea is that, say once a month, a script compares the contents of the two drives and only makes adjustments based on what has changed on the first drive.



I realize the better way to organize these drives would be to reformat them together in a RAID pool of some kind, but I don't have a third drive big enough to hold the data I have in order to do that.



Actually, random thought, would it be possible to create a RAID 1 setup using only one drive, move the data in it, then add the second drive to it afterward? I'm a complete noob at setting up RAID in Ubuntu.










share|improve this question
























  • I'm really satisfied by this incremental solution of using of rsync, provided by @PerlDuck. Here is an elaborated version of the script, which has exclude option: github.com/pa4080/simple-backup-solutions

    – pa4080
    2 hours ago


















1















I have a home sever running Ubuntu server. It has two 12TB drives in it. What I'd like to do is simply run a backup in such a way that the second drive is just an exact duplicate of the first, but without copying the entire drive every single time. My idea is that, say once a month, a script compares the contents of the two drives and only makes adjustments based on what has changed on the first drive.



I realize the better way to organize these drives would be to reformat them together in a RAID pool of some kind, but I don't have a third drive big enough to hold the data I have in order to do that.



Actually, random thought, would it be possible to create a RAID 1 setup using only one drive, move the data in it, then add the second drive to it afterward? I'm a complete noob at setting up RAID in Ubuntu.










share|improve this question
























  • I'm really satisfied by this incremental solution of using of rsync, provided by @PerlDuck. Here is an elaborated version of the script, which has exclude option: github.com/pa4080/simple-backup-solutions

    – pa4080
    2 hours ago














1












1








1








I have a home sever running Ubuntu server. It has two 12TB drives in it. What I'd like to do is simply run a backup in such a way that the second drive is just an exact duplicate of the first, but without copying the entire drive every single time. My idea is that, say once a month, a script compares the contents of the two drives and only makes adjustments based on what has changed on the first drive.



I realize the better way to organize these drives would be to reformat them together in a RAID pool of some kind, but I don't have a third drive big enough to hold the data I have in order to do that.



Actually, random thought, would it be possible to create a RAID 1 setup using only one drive, move the data in it, then add the second drive to it afterward? I'm a complete noob at setting up RAID in Ubuntu.










share|improve this question
















I have a home sever running Ubuntu server. It has two 12TB drives in it. What I'd like to do is simply run a backup in such a way that the second drive is just an exact duplicate of the first, but without copying the entire drive every single time. My idea is that, say once a month, a script compares the contents of the two drives and only makes adjustments based on what has changed on the first drive.



I realize the better way to organize these drives would be to reformat them together in a RAID pool of some kind, but I don't have a third drive big enough to hold the data I have in order to do that.



Actually, random thought, would it be possible to create a RAID 1 setup using only one drive, move the data in it, then add the second drive to it afterward? I'm a complete noob at setting up RAID in Ubuntu.







server backup raid






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 9 mins ago







Gerowen

















asked 2 hours ago









GerowenGerowen

817514




817514












  • I'm really satisfied by this incremental solution of using of rsync, provided by @PerlDuck. Here is an elaborated version of the script, which has exclude option: github.com/pa4080/simple-backup-solutions

    – pa4080
    2 hours ago


















  • I'm really satisfied by this incremental solution of using of rsync, provided by @PerlDuck. Here is an elaborated version of the script, which has exclude option: github.com/pa4080/simple-backup-solutions

    – pa4080
    2 hours ago

















I'm really satisfied by this incremental solution of using of rsync, provided by @PerlDuck. Here is an elaborated version of the script, which has exclude option: github.com/pa4080/simple-backup-solutions

– pa4080
2 hours ago






I'm really satisfied by this incremental solution of using of rsync, provided by @PerlDuck. Here is an elaborated version of the script, which has exclude option: github.com/pa4080/simple-backup-solutions

– pa4080
2 hours ago











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