Sunday…all sorted!
Dec 2nd 2007PeterGetting My Life Back! & Tech stuff
And finally everything is back as it should be! Full raid, disk layout fine, all burning and turning!
I was talking to fellow blog master Mark about it, and he commented that this episode was hardly a good advert for Linux, which rather got me thinking about the last couple of weeks.
The initial failure was a hardware fault in the memory which manifested itself as disk corruption. However Linux uses a journaling file system logs disk transactions before they happen (large disk transactions are processor intensive, so most modern OSs delay disk writes until the processor isn’t doing other things – but a system crash can mean lost data that hasn’t been written to disk – which is why a computer should always be shut down properly, never just switched off)) Linux uses a journaling file system which logs potential disk transactions so if the system does crash, the journal can recover the expected transactions and make repairs. (Windows NTFS also uses a less robust form of journaling).
However in this case the potential corruption was so bad that Linux deactivated the disk so that no other damage could occur – a fact that I didn’t immediately recognise. If I had, I could probably have had the system up and running again within a day or so. As it was, I took the safe course and reloaded everything onto a new disk, got it all up, and then transferred it back to an array. What would have happened had I been using Windows? I’m not sure, but I doubt it would have been any easier. However, as Mark pointed out, having up-to-date backups would have helped!! (That is now in hand) Mark – enjoy your Apple Mac when it arrives – and remember that the underlying operating system is Linux based!
I said I would post some more photos of Olivia at a birthday party when I received them. I have and they are in the November Album in the Gallery (under Olivia).
I am off on another module of the computer course I started a month ago – this one is about networks, so I may not write for a few days – but keep watching this space!
O&U
5 Responses to “Sunday…all sorted!”
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Richard on 03 Dec 2007 at 9:33 am #
Glad that all seems to be going well on all fronts……just had fun installing reversing rada on my car. The coach builder replacing the bumper installed the sensors upside down now all fine so all is well with the World if you don’t mention my Father who has taken to ringing me at all hours in the early morning………..hey ho off to see his quack
Gillian on 06 Dec 2007 at 7:22 pm #
Is that the coach that cinderlla uses? Does she have need of reverseing sensors to stop running over prince charming? Tis the panto season again!
Hopefully much is ‘all behind you’ Peter… wishing you well and much hugs
Gillian
Richard on 06 Dec 2007 at 8:49 pm #
What about the fairy dust Gillian?
Gillian on 07 Dec 2007 at 9:11 pm #
everyone needs a little fairy dust – especially at christmas!!
really must stop eating the mince pies – the fairy outfit is definitely shrinking in the wash….. 🙂
Richard on 08 Dec 2007 at 7:09 am #
Lens a new meaning to being tight at Christmas………oooooooooh.