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From: "Danny Do" <ai_quoc@hotmail.com>
To: "'Wojciech Puchar'" <wojtek@wojtek.tensor.gdynia.pl>
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Cc: freebsd-questions@freebsd.org
Subject: RE: Optimal File System config for 2.5TB RAID5
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Hi Wojciech Puchar,

The reason I want to use hardware RAID is because I got so much problem with
software RAID5 4 years ago on FreeBSD 5.4. I still remember those
nightmares. Furthermore, hardware RAID5 doesn't require much knowledge and
management.

But you could be right, the CPU speed is triple now, software RAID gets
smarter and more stable, it could perform better than hardware RAID because
it's more flexible. But again, I still prefer hardware because it's easy to
use and easy to manage. 
	
Thanks all the tips Wojciech Puchar,

Danny

 

-----Original Message-----
From: Wojciech Puchar [mailto:wojtek@wojtek.tensor.gdynia.pl] 
Sent: Tuesday, 30 September 2008 9:16 PM
To: Danny Do
Cc: 'Josh Paetzel'; freebsd-questions@freebsd.org
Subject: RE: Optimal File System config for 2.5TB RAID5

> SATA using 1MB IO transfer size, I don't know! I think the SATA system
will

SATA drives aren't much slower than SCSI.

simply make this 1MB IO transfer size.

as you still want "hardware" RAID5 it looks you simply read maybe every 
second word from my mails we exchanged privately.