On 05/18/2017 08:34 PM, Adam Goryachev wrote:
On 19/05/17 07:37, Ram Ramesh wrote:
Any one have a method to backup large volumes like md raid6 (16TB)?
Since the backup will not fit in one disk (in many cases and mine
too) I am wondering, if there is a known/easy technique to backup
using multiple usb hard drives. I googed and found a few fancy backup
utils/systems like Amanda etc. They are overkill for me. I am
choosing not to back up simply because of the complexity of setup as
the data in my RAID volume is NOT precious and can be replaced with a
week of effort.
If any one can think of some thing simple, please point me to it and
I will do the reading to figure out.
I suppose it depends on what you want to achieve. There are various
options such as mirroring to another raid6 array (ie, RAID60) but
really that isn't a backup, it's another replica.
I use backuppc for my backups, it works well under linux with rsync,
I'm sure there are many various options (including amanda which I've
used in the past). Ultimately, it depends on your requirements,
backups vary significantly depending on needs/etc.
Regards,
Adam
Here is a summary of what I like to do. I want to backup files on to
(multiple) disks that will be loaded on to a USB dock. Simple one to one
copy is all I am looking for. I am not interested in full vs.
incremental or keeping versions of files for restore. My data is just
movies and songs. All I want is a SW that understands links (to avoid
duplicates) and copy files in batch on to multiple disks. I want content
of each (backup) disk to be independent. This way if one backup disk
dies, I have all other files unaffected by this failure. The only reason
I did not try multi-volume tar is the lack of independence across disks.
I suppose this is a backup question rather than RAID question. I asked
here because the size of RAID volumes make it impossible to back up to a
single drive and this is a more common problem RAID world rather than
general user forum in a backup mailing list.
Ramesh
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