[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: [OT] Price / performance & Software RAID / Hardware RAID / IDE/ SCSI



hi ya

am curious... why 3Ware cards are not in the list of "hardware raid"
supported chipsets..
	- 3ware (supposedly) does raid0/raid1 in hw...

	- easy enough to test ... pull the drives... :-)

c ya
alvin

On Fri, 22 Feb 2002, Emil Pedersen wrote:

> O Polite wrote:
> > 
> > On Fri, 2002-02-22 at 02:16, Alvin Oga wrote:
> > 
> > > if you can write data to /dev/hda1  in 5 seconds...
> > > writing to striped raid0 will be say 7-10 seconds...
> > Why is this? I thoght the point of raid0 was to write to all drives in
> > parallell.
> 
> It is[1].  You trade increased performance (compared to non-raided
> disks) for the cost of higher probability  of hardware failure.  (raid0
> means any disk dies, the entire stripe set is lost).
>   For more details use google or just click
> 	http://www.kintronics.com/raidwpaper.htm
> 
> As for the page
> 	http://www.linux-ide.org/chipsets.html
> 
> I miss 3Ware's Escalade-cards, who as far as I know was the first and/or
> best TRUE ide/ata raid cards supported in linux, no?
> 	http://www.3ware.com/index.shtml
> 
> 
> [1]  Assumed that they are not on the same bus OR that the bus can hadle
> it properly (which I _think_ so far only scsi can).
> 
> 
> Regards,
> 	Emil
> 
> 
> -- 
> To UNSUBSCRIBE, email to debian-user-request@lists.debian.org 
> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
> 



Reply to: