[nycbug-talk] 2x 3Ware Escalade 9500S-4LP SATA

Isaac Levy ike
Sat Dec 31 12:17:47 EST 2005

Hi Francisco, All,

On Dec 31, 2005, at 2:21 AM, Francisco Reyes wrote:

> Charles Sprickman writes:
>> That said, many there are talking about SATA RAID.  These are  
>> database people, mind you, who are very picky about storage.  The  
>> 9500 series cards are very highly recommended
> We just got a machine with a 9550SX on it.
> It was a hassle installing FreeBSD on it. Had to boot a loadable  
> module from a floppy. Once the machine was upgraded to 6 Stable it  
> was fine since the driver for the card was added in early December  
> to the source tree.

Right- but has anyone simply tried to *install* straight FreeBSD 6  
using the card?  *Not fun*, so far.  The TWE driver is not loading  
properly after installing, so it boots ok from the bootonly ISO, but  
after a fairly 'stock' install, (no wacky options), rebooting (for  
the first machine boot) just sits tossing errors over and over...

>> , but there's also a brand that I have not heard of before called  
>> "Areca": http://www.areca.com.tw/index/html/index.htm
> I have read very good reviews and good feedback on other lists.  
> Also they are one of the few cards that can do RAID 6 (parity  
> distributed to 2 disks).
> The reason we went with 3Ware in the latest server is because the  
> vendor of the machine mentioned that 3Ware had a unique technology  
> which would better safeguard the data upon power loss. He said that  
> one would have to turn off the cache in the Areca to be as safe as  
> the 3Ware.. and that the 3Ware with cache enable was safe.. as long  
> as one got power back before the card batteries ran out.

The Areca Raid Controller cards have a battery backup option too,  
with most cards I've bought it's always an add-on option.

 From what I found online, the Areca battery is designed to sit in  
the metal PCI backplane, (doesn't plug into the PCI slot), because  
the card is fat enough on it's own.

The 3Ware card battery add-on option fits on the card itself, which  
I'd say is a consideration for a 1u system...  (Although the battery  
backup could fit elsewhere in the server case?)

Just tossing that info into this thread for the record.

>> These are getting very positive reviews, and Areca's benchmarks  
>> claim that they beat out 3Ware as well.

Gotcha.  If someone has an Areca card, I have a spare of the 3Ware,  
we could do a NYC*BUG test...

> Have seen a few reviews where the Areca's did better, but according  
> to the an engineer where we bought our latest server the 3Ware  
> 9550SX outperforms the areca offerings.

Right- hrm.
/me doesn't trust any vendor or sales engineer until I live with it  
for a few years...


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