[CentOS] Suggest Hardware Raid Controller Card

Mon Jul 11 16:53:57 UTC 2011
Drew <drew.kay at gmail.com>

>> Which is funny because Intel's SASUC8i (rebranded LSI3082E-R) is true
>> hardware RAID which I recently picked up*new*  for $150. They don't do
>> RAID-5/6 or have a BBU but IMO you don't need a BBU for RAID-0/1/10.
>
> you want BBU (or flash-backed cache) if you want write-back cache, and
> not mandate write-through. This is quite independent of the RAID type.
> It greatly speeds up 'committed' random writes such as are generated by
> a transactional database.

I stand corrected in that area. Tho, even upgrading to a LSI MegaRAID
9260 w/ BBU only brings you into the $1000 price range so unless
you're buying $1000 pizza boxes from Supermicro (not knocking the
brand, I use their kit at home ) that's still not even close to the
price of a decently spec'd IBM or HP server. Of course our spec comes
in around $6k per box. ;-)



-- 
Drew

"Nothing in life is to be feared. It is only to be understood."
--Marie Curie

"This started out as a hobby and spun horribly out of control."
-Unknown

MGen Dorlan Kwase UFPSFMC
Deputy Judge Advocate General
9th MARDIV Commander, Ret.
Obsidian Fleet