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Re: [PLUG] Hardware RAID + [COS]
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I have a 4-disk raid array that has been running 24/7 on IDE drives and a
Promise SX4000 raid controller for 3 years without so much as a hiccup.. I
would not recommend promise, though, because they give you only binary
drivers that must be used with a stock Redhat kernel. They're morons for not
giving their source to the kernel maintainers, but hey, if they want to have
a flawed business model, that's their choice. 3Ware controllers are more
expensive, but have kernel source drivers and are probably better anyway.
Personally, I like Raid-5 since I don't care about the slightly slower
performance. The array is still faster than my network, so it doesn't
matter.
Speaking of fast networks, has anyone ever actually gotten gigabit ethernet
stuff to do decent speed? I spent a ton of money on nice SMC switches that
support jumbo frames and the SMC cards to go along with them, and I still
can only get about 125mbit/s out of them. Slightly better than the 90 I got
out of my 10/100 cards... but abyssmal for the cost... MTUs are 9K, but I
still can't get any decent speed out of them... does anyone have experience
in this?
E
ps. COS = Change of Subject...
----- Original Message -----
From: "Doug Crompton" <doug@crompton.com>
To: "Philadelphia Linux User's Group Discussion List"
<plug@lists.phillylinux.org>
Sent: Thursday, March 10, 2005 1:19 AM
Subject: Re: [PLUG] Hardware RAID
> Remember that many items that we buy have longer warranties simply because
> you pay more for it. It is kind of an upfront insurance. You pay more so
> they can afford to cover it longer. SCSI drives are typically much higher
> in price then corresponding IDE drives. In fact sometimes almost twice as
> much or more. You could probably setup a RAID 5 IDE for the price of a two
> drive mirrored SCSI.
>
> Heat is a big issue in drive life. Liquid cooling is an option. A friend
> has a RAID array liquid cooled as well as the CPU.
>
> Doug
>
> On Wed, 9 Mar 2005, James Kelly wrote:
>
> >
> > I think where IDE got this reputation is that they are known to eat
> > themselves alive under heavy load (ie constant reads and writes). This
> > is the kind of thing you have in a server environment, where at home you
> > have access only when you want to play. Or at least this is the CW.
> >
>
>
> ****************************
> * Doug Crompton *
> * Richboro, PA 18954 *
> * 215-431-6307 *
> * *
> * doug@crompton.com *
> * http://www.crompton.com *
> ****************************
>
>
>
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