2016-09-30



Today, it's 15 years since the day I lost almost all of my  digi-
tal  data. (I was glad to have burned my first CD-R with parts of
my data some weeks earlier, which took about an hour on a  1x  CD
writer.  We  couldn't run 2x speed because that would have caused
buffer underruns.)

Thus today was the right day to  exchange  the  problematic  hard
disk in my home server. I used this tutorial [0] but the  process
was clear. It just saved me looking into the manpage (of mdadm(8)
... which has this most unintuitive interface).


In the same go, I added a 1 TB disk, I had  in  spare,  into  the
server and wrote a script to use it as a half-online-half-offline
backup. Usually the disk is unmounted. Only for the  backup  pro-
cess,  it  is  mounted, the data is rsynced to it, then it is un-
mounted again.


The next two improvements that I would like to achieve:

1) a real offline backup in a periodic interval

2) versioned backups instead of just copying the latest data

I should give obnam, rsnapshot and rdiff-backup a  try  each  and
then set one of them up.


[0]  https://www.howtoforge.com/replacing_hard_disks_in_a_raid1_array


http://marmaro.de/lue/        markus schnalke <meillo@marmaro.de>