From: Toll, Eric (eric_at_vipstructures.com)
Date: Mon Apr 10 2006 - 15:25:10 CEST
Date: Mon, 10 Apr 2006 09:25:10 -0400 Message-ID: <9BC86C67C3AF7646B9C5382020457A949DD7CA@VIP10-WIN2K> From: "Toll, Eric" <eric@vipstructures.com> Subject: RE: [suse-sles-e] Growing raid5 on SLES9
I'd recommend getting a 3Ware RAID Card for a real harware
XOR mirror or even raid 5 Cards start at about about
$140.00 USD. Has nice web gui, can send you an email when
the array gets into trouble. Also I use Western Digital RE
(Raid Edition) drives. They are meant to stay on 24x7...
Eric
>
> Hmm; today's disk price is about $100 / 250 GB disk and
$200
> / 400 GB disk (SATA disks, with discounts).
> I'd better think about cheap hardware raid OR about using
RAID-1.
>
>
> ----- Original Message -----
> From: "Ciro Iriarte" <cyruspy@gmail.com>
> To: "Alexei Roudnev" <Alexei_Roudnev@exigengroup.com>
> Cc: <suse-sles-e@suse.com>
> Sent: Thursday, April 06, 2006 8:23 PM
> Subject: Re: [suse-sles-e] Growing raid5 on SLES9
>
>
> 2006/4/3, Alexei Roudnev <Alexei_Roudnev@exigengroup.com>:
> >
> > Ciro.
> >
> > I adwice agains ANY software raid-5 ( if you need raid,
run raid-1).
> > reason
> > is that RAID-5 works very uneffectibe withoot write-back
cache, and
> > softeware raid have noit any way to ave write-back cache
> (because server
> > ave
> > not non-volative memory). In addition, you wil have all
> raid rebuild on
> > each
> > dirtry reboot.
> >
> > So, never use it. Use software raid-1 if necessary, or
pay
> extra $200 and
> > purchsase hardware raid-5 with battery-supported
write-back cache.
> >
> >
> > ----- Original Message -----
> > From: "Ciro Iriarte" <cyruspy@gmail.com>
> > To: <suse-sles-e@suse.com>
> > Sent: Sunday, April 02, 2006 1:48 AM
> > Subject: [suse-sles-e] Growing raid5 on SLES9
> >
> >
> > Is it posible to start a software raid5 with 3 SATA
disks
> on SLES9 and add
> > more disks later as needed?, i've seen it's possible
with mdadm
> > 2.3.something. If it's not available on SLES9, maybe
with EVMS?
> >
> > Ciro
> >
> >
> Sorry, forgot to say it's not going to be and uber
production
> server, it's
> going to be a budget file server, it's going to have
writes
> 20% of the time
> and read 80% of the time, and be on UPS probably.
>
> Ciro
>
>
>
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