Alan McKinnon <alan.mckin...@gmail.com> [14-06-24 19:12]: > On 24/06/2014 16:43, meino.cra...@gmx.de wrote: > > Hi, > > > > I bought two identical external harddrives, USB 3.0, with 1 TByte each > > (no SSD - the good ole mechanical ones...;). > > > > The intended use is for backup of longer files. The drives will > > contain the same contents. > > > > Currently there are still "clean metal" (no partitioning, no fs). > > > > Data integrity and recoverability (Uhhh...that words looks wrong...) in > > case of an desaster is more important than speed. > > > > What is the recommended way of partitioning ? > > What filesystem to choose? > > > > > > Thank you very much in advance for any help! > > Best regards, > > mcc > > > > > > PS: Running vanilla kernel 3.15.1.... > > You haven't given much in the way of detail, so I assume you have > regular needs, nothing fancy, and it's all a bunch of files right? > > In that case, partitioning and filesystem type are largely irrelevant as > long as you don't have corruption. With one caveat: > > You must always make sure the source drive is intact and ok. If not, and > you back it up anyway, then you are already toast (you will overwrite > your last backup with new faulty data). > > There's several approaches to how to do the transfer: > > If you have say a general fileserver with lots of files that don't > change much or often, just rsync everything in one go. There is no > optimization you can do that will perform much faster than rsync. > > If you have a big busy filesystem that changes often and lots, then use > lvm (or anything that can make snapshots) and rsync that. > > If you have a huge database where everything is changing all the time, > don't do filesystem copies, use the tools provided by the db vendor. I > doubt this is your need as you would have said so, but it's worth > mentioning. > > > -- > Alan McKinnon > alan.mckin...@gmail.com > >
Hi Alan, thanks for your reply! :) Yes...your are right. I have a lot static (=not changing) data on my harddisk...mostly things like video tutorials (blender), videos of birds I filmed, dokuments and such... They are eating up the space on my systems harddisk. Do I decided to put them on a extern hd and an identical copy on another identical external harddisk. Its mainly a task of updateing the data on the external drives with that what is new (and static and big and falls under what I described above) on my systems harddisk. I will check rsync for that!
