Date: Tue, 30 Sep 2008 22:54:29 +0700 From: "Danny Do" <ai_quoc@hotmail.com> To: "'Wojciech Puchar'" <wojtek@wojtek.tensor.gdynia.pl> Cc: freebsd-questions@freebsd.org Subject: RE: Optimal File System config for 2.5TB RAID5 Message-ID: <00c301c92314$d295a3b0$77c0eb10$@com> In-Reply-To: <20080930161407.E16761@wojtek.tensor.gdynia.pl> References: <1222681181.48e0a25d094c3@www.inbox.lv> <BAY139-DAV13C8982A51CD9B05C74D5090430@phx.gbl> <48E21C66.8080407@FreeBSD.org> <BAY139-DAV5423DFBF403B32AA0C22690430@phx.gbl> <20080930161407.E16761@wojtek.tensor.gdynia.pl>
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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.
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