You should rather buy preformatted diskettes. ;-)
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Bc.Aley [eili] Keprt - games & multimedia programmer
ICQ: 82357182 (evenings) *** phone: +420-68-5387035 (weekends)
private e-mail: [EMAIL PROTECTED] *** http://get.to/aley
office: Illusion Softworks, Brno, CZ - [EMAIL PROTECTED]
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----- Original Message -----
From: "Dean Liversidge" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, January 23, 2001 8:45 PM
Subject: Re: Where are YOU now?
> On Tue, 23 Jan 2001 09:12:30 +0100 (MET), you wrote:
>
> >On Mon, 22 Jan 2001 21:21:20 +0100 "Aley Keprt" <[EMAIL PROTECTED]>
wrote:
> >> > >However, there is no redundancy in a RAID0 set, hence it's more
commonly
> >> > >referred to as striping. Actually, introducing RAID0 increases the
> >> > >probability of a disk crash (and hence data loss without propper
> >> > >backup) by the increase in disks.
> >> > >
> >> > > -Frode
> >>
> >> What a theory is this?!
> >
> >No theory - simple math.
> >
> >> How can it increate a probility of a disk crash? Is it just because of
using
> >> two disks?
> >> Is so, it is a nonsense.
> >
> >No. Disks come with a MTBF. If you add disks, this MTBF remains
> >(almost) constant. The MTBF of the entire raid will then decrase
> >when the number of disks increase.
> >
> >> 450MB means it can possibly fill my memory 5 times per second :-)))
> >
> >Provided your bus can handle it....
> >
> >> > Yeah, thats true, but for my home system, i'm not too concened about
> >> > redundency, although this m/board can do raid0+1, but i backup a few
> >> > of the things i want to keep, erm... sometimes <g> its not worth the
> >> > cost of loosing the extra disks, most stuff i can re-install
> >> >
> >> > it feels good ahinve it tho ;o), win2k boots nice and quick, and ive
> >> > got loads of space to put my sam images
> >>
> >> What data loosing are you talking about? I think hard drive failure is
not a
> >> common problem
> >> (compared e.g. to strange problems of M$ Anything <enter any year
here>)
> >> Or not?
> >
> >If you believe that, you have not been exposed to any real life
> >disk crashs. If you have one or two disks you will rarely
> >experience any disk crash. However, as you add drives, the total
> >MTBF quickly decrements. That is why RAID was invented in the first
> >place (keepign RAID 0 out of it).
> >
> >In my work as a administrator I have experienced about 15 disk
> >crashes - ~10 of which were cheap PC IDE drives. 3-4 SCSI and one
> >FW disks.
> >
> > -Frode
>
> Although i use my system a lot at home, the chance of me having a
> drive fail, is very very slim, if they fail, they do it straight away,
> or last for years, even tho my system is usually on 24/7, its still
> not a big issue.
> the problem of data recovery in event of failure is a lot worse with
> RAID, but hell, its only like the time i booted to command prompt in
> windows and wanted to format a floppy, so i did the usual : format c:
> /u/q/s, then it asked my if i'm sure... durr.. of course i'm sure, i
> wouldnt have typed it if i wasnt..... oh shit!!!... my floppy isnt
> 8,095 MB !!!!!!.... oops ;o), i think i'm a bit _too_ used to trashing
> systems at work and re-installing
> I was going to have a go at recovering the file system but decided it
> wasnt worth the hassle, especially since i put the system files on
> there aswell
>
> Any stuff i loose is just tough luck, thats the compromise of increase
> in speed. everything in lifes a compromise :o)
>
>
> Weve been fairly lucky at our place, i havnt had too many disks die so
> far on the servers, mainly a few SCSI ones, but they were in the the
> mail server, the system wasnt really too high quality on the cooling
> front, there was once ,when one of the drives was getting hammenerd
> that much, that it keeled the linux box with loads of scsi bus errors,
> and i had to down the server, hold it with the case off for about 5
> minutes infront of the air-conditioning, to cool it down, then boot it
> back up again.. worked a treat . :)
>
> --
> Dean Liversidge
>
> [EMAIL PROTECTED]
