[mythtv-users] RAID on Fedora Core 3?
davidmaxwaterman at fastmail.co.uk
Tue Dec 21 17:20:54 UTC 2004
OK, I think I've decided to do raid in linux's mdadmin tool.
So, now I just need to find a card or cards that will support 8 drives
each with it's own channel. I have failed to find a non-raid card larger than
a 2-channel card. All the ones more than 2 channels are labeled 'raid'.
I know many have warned against Promise, but I think that is mainly due to their
use as raid devices. I know they do some 4 channel cards - do they work
ok in that mode? I know the 2-channel 'RAID' card works as a plain IDE
controller. Anyone have a 4-channel one? Anyone care to guess?
Max Waterman wrote:
> Yan-Fa Li wrote:
>> Not sure what it is you are looking for ? Low price or port density.
>> One trades off the other. Just one rule, stay away from Promise.
>> Pretty much everything available today is good enough.
> OK :)
>> I quite like the Silicon Image 680 based cards. Very cheap and work
>> quite well. I've used CMD based cards reliably over the years.
>> HighPoint has reasonable driver support for the 37X family. Some of
>> the newer chipsets are beta. Anything that's not SATA should have
>> excellent support. 3Ware is good choice if you have lots of money and
>> need lots of density per PCI slot or 64bit support.
>> Check the archives for the recent RAID thread, it rehashes almost
>> everything you want to know. Just remember with that many drives
>> you're ultimate gate is PCI 32bit/33MHz performance. Which
>> realistically is about 40-80MB/s depending on wether you're reading or
>> writing. To get any higher you'll need PCI-X or PCIe.
>> Hopefully the new NForce4 boards which are about to hit the market
>> will give us PCIe for Athlon 64.
> Thanks. I'll take a look at the thread. Seems like 3ware is one to look
> at; not that I have lots of money. Perhaps they'll be cheaper here
> Anyway, thanks.
>> Max Waterman wrote:
>>> While I am waiting for opinions, I am coming to the conclusion that
>>> Highpoint is a name to look for.
>>> Is this right?
>>> Max Waterman wrote:
>>>> I am trying to build a MythTV/dvarchive box. I bought 4 Promise
>>>> Ultra100TX2 PCI cards, but found that they wouldn't work
>>>> with more than 2 in a system :(
>>>> I was going to use linux s/w raid over the drives.
>>>> I know you guys must use plenty of raid setups, so thought you'd be
>>>> the best to advise on which types are best.
>>>> I am running FC3, and have 4 WD800/8 and 4 WD2000/8 drives that I
>>>> want to be two RAID5 volumes. I am running
>>>> on a nForce3 250Gb, so network traffic is not a problem with the PCI
>>>> bus, but gfx/video output maybe is (I haven't
>>>> chosen my final gfx/video setup, but am currently using a cheap TNT2
>>>> gfx card).
>>>> I heard that Promise is giving 'lack-lustre' Linux support, so I'm
>>>> totally open to not using Promise cards. I also heard
>>>> that cards which do h/w RAID will give less load on the PCI bus.
>>>> How should I do this? What h/w?
>>>> mythtv-users mailing list
>>>> mythtv-users at mythtv.org
>>> mythtv-users mailing list
>>> mythtv-users at mythtv.org
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