[TriLUG] Hardware: Most reliable IDE HD brand?

Roy Vestal rvestal at trilug.org
Mon Dec 2 13:53:41 EST 2002


If possible, use a RAID 1+0 (sometimes called 10), if your drives are hot
swappable.
----- Original Message -----
From: "B. Evans" <bpevans at bellsouth.net>
To: <trilug at trilug.org>
Sent: Sunday, December 01, 2002 8:32 PM
Subject: Re: [TriLUG] Hardware: Most reliable IDE HD brand?


> Mike Johnson wrote:
>
> >B. Evans [bpevans at bellsouth.net] wrote:
> >
> >
> >
> >>Doesn't sound like a very good situation these days.  I ask because I
> >>want to setup a cheap RAID 0 file server.   I really need only about 4gb
> >>so size isn't an issue.  Would a SCSI RAID0 system be any more reliable
> >>for near the same cost?
> >>
> >>
> >
> >Er, you're setting up RAID0 and worried about reliability?  Do you maybe
> >mean RAID1?
> >
> >RAID0 is striping.  No redundancy.  It's fast, but if you loose one
> >drive in the stripe, you loose -all- data.  So if you think about it,
> >RAID0 is actually -worse- for reliability than a single drive.
> >
> >Now, what's the purpose of the file server?  You actually might want to
> >consider RAID1, if you're after reliability.  It's a little slower on
> >writes than a single drive and slower than RAID0 on writes, but it's as
> >fast (or faster) than a single drive on reads and if you loose one
> >drive, you keep on chugging (no data loss).  You can even have a hot
> >spare and if one drive fails, the hot spare will be automagically
> >swapped in.  If you're looking at 4GB, you can get SCSI drives of that
> >size relatively cheap. Buy three 4GB drives and a card and off you go.
> >
> >Mike
> >
> >
> Sorry,  You're right. I meant to say RAID 1 (mirroring).   Where would I
> go about finding inexpensive, small SCSI disks and an inexpensive
> controller?
>
> Thanks,
> bp
>
>
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