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Re: raid controller & debian

Rod Rodolico, Thu, Sep 04, 2003 at 11:28:07AM -0500: 
> I had the same question not too long ago, and 3ware came up as one of
> the choices. But, if I remember correctly, it slows the system down
> quite a bit on a rebuild.
> I have since been told by some guru's I know that the IBM ServeRaid 3HB
> (IBM p/n 37L6086) was the best choice, and mine is being delivered
> today. Retail is supposed to be around $279, but I found one online for
> $149. To my knowledge, these are out of production, but there are a lot
> still hanging around. One friend found one, used, on ebay, for around
> $70.

The IBM card is SCSI while the the 3ware card is IDE.  If you are trying
to be cost effective and use IDE drives then the 3ware card may be the
only viable option (IDE raid cards like Promise or Highpoint are actually
software raid).

If you are going for SCSI raid, there are many options.  You can use
modconf (look in kernel/drivers/scsi) to see what cards are supported by
your current kernel.  If you want to put / on the raid array, your
installation kernel will need support for the card built in.

Given the choice, I would choose SCSI over IDE 7 days a week.  If I have
to go with IDE, I use the 3ware card.  We have 20+ Escalade 7500-8 cards
and they work fairly well.


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