joelja at darkwing.uoregon.edu
Fri Mar 1 10:23:31 PST 2002
On Fri, 1 Mar 2002 ml at fms-computer.com wrote:
> > [... some bad experiences with 6800 and RedHat...]
> > I posted to various mailing lists my experience, and got quite a few
> > responses saying that they had the same problem, and had ditched 3ware.
> > I seem to recall seeing a press release or similar saying 3ware was
> > getting out of the eide raid controller business, but I'm guessing
> > that either wasn't true or they changed their mind.
promise has an niceish raid controller in the form of the sx6000 which is
an i2o(i960) raid controller. it has six channels instead of 8 and it's
slower than a 3ware 7810 but it's also cheaper.
In both cases (3ware or promise) you can actually get higher performance
by just running them in jbd mode and doing software raid-5 but the
hardware raid modes aren't what I'd call terrible either.
> That was a time ago now. 3ware's products (i saw lots of controllers...)
> are the only ones that are known (by me) supported well by linux (promise
> hasn't a really hardware raid support, 3ware controller have!). We are using
> mostly Escalade 7850 for our storage servers (16* 120 GB Maxtor/2* 7850/
> 4 U Rackmount), which are used as cluster server as well as large disk space
> e. g. for video editing. 3ware wasn't getting out of buisiness and they
> support their controllers well. There are some known issues with
> RedHat-Installations, but we are using the SuSE Linux distribution and their
> kernel releases support 3ware controller very well and out of the box
> (2.4.10/2.4.16). The performance with raid level 5 is about 50-60 MB/s with
> bonnie++, which is more as much of the SCSI-raids i've seen yet. With the
> experiences we made i can conclude that 3ware's controller should be the
> choice for unexpensive hostbased raid solutions with linux. (and i do not
> speek for 3ware!)
> > Buyer beware.
> Sure. But it is up to the dealer to give the right informations on his
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Joel Jaeggli Academic User Services joelja at darkwing.uoregon.edu
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