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
>
>
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