On 30/08/17 16:23, Wols Lists wrote:
On 29/08/17 18:16, Paul Groves wrote:
OK, I never managed to get the data back from the tar file so I would assume it was corrupted during creation.
However all of the data has been recovered from several hours of detective work on my part going through everyone's computer and copying their data back to the new server.
A few older file were lost, however I have a tape from a couple of weeks ago with those older files already on.
I have spent the last hour saying 'I told you so' to the colleague that thought RAID was a waste of time and he has now supplied me with lots of beer to leave him alone. :D
And I set up the server with RAID and made a tape backup which I will be taking home and putting somewhere safe.
so it all ended up OK :)
Which raid? !!! RAID 10 in this case. (4 disks).
And have you read the raid wiki, about keeping everything safe? RAID DOES NOT EQUAL BACKUP !!! No but it stops the server from going offline for ages while you wait for a new drive to come in the post.
I am wasting my breath telling them they are not doing backups correctly. Perhaps they may listen this time (pah!) I just make sure I backup my own work and get on with my own job at this stage.
The best raid is raid-6, although it does come with some performance hit. And *make* *sure* you've got scrubbing and monitoring in place (active, not passive, you only need a glitch in your mail setup and you never receive the email telling you your raid-6 is critical because you've got two dead drives ...)
Cheers, Wol
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