Re: New hardware thoughts

On Oct 23, 2006, at 5:08 PM, Joshua D. Drake wrote:

>>
>> They don't randomly change the controllers under the same name.
>> If you
>> order a PERC4e/Si controller you will get the same controller every
>> time.
>
> Actually Vivek this isn't true. Yes the hardware will likely be the
> same, but the firmware rev will likely be different and I have seen
> firmware make an incredible difference for them.

Fair enough... but you don't expect LSI to never update their
firmware either, I suspect... not that I'm a big dell apologist..
they're totally off of my personally approved server vendor for db
servers.

>
>> This particular controller (found in their PE1850) is incredibly
>> fast, sustaining over 80Mb/sec writes to a mirror.  I measured that
>> during a DB mirror using slony.
>
> O.k. but my experience shows that mirroring isn't where their problem
> is, raid 5 or 10 is :)

Like I said, for some configurations they're great!  Finding those
configs is difficult.