Date: Thu, 28 Oct 2004 09:02:51 -0300 From: "Giovanni P. Tirloni" <gpt@tirloni.org> To: Charles Sprickman <spork@inch.com> Cc: stable@freebsd.org Subject: Re: Serial ATA RAID Controllers (5.x) Message-ID: <4180DFEB.901@tirloni.org> In-Reply-To: <20041027132604.J2588@shell.inch.com> References: <20041027040910.YUGS11892.out008.verizon.net@STACY> <20041027132604.J2588@shell.inch.com>
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Charles Sprickman wrote:
> On Wed, 27 Oct 2004, Steve wrote:
>
>
>>3ware 9xxx series is much better than adaptec,
>>Adaptec will not work with dbsd without some tweaking, 3ware will work
>>flawlessly.
>
>
> Are you running 4.x or 5.x?
I've been testing 5.3-BETA7 with an Intel SE7210TP1-E motherboard.
It has Adaptec HostRAID and I'm using two Seagate 160GB SATA drives.
So far things are working as expected.
I had to create the RAID 1 array with atacontrol before installing
FreeBSD. Below is the output of diskinfo -t /dev/ar0 with the default
GENERIC kernel. I've done no tuning yet.
/dev/ar0
512 # sectorsize
160041853440 # mediasize in bytes (149G)
312581745 # mediasize in sectors
19457 # Cylinders according to firmware.
255 # Heads according to firmware.
63 # Sectors according to firmware.
Seek times:
Full stroke: 250 iter in 1.515921 sec = 6.064 msec
Half stroke: 250 iter in 1.511172 sec = 6.045 msec
Quarter stroke: 500 iter in 2.999155 sec = 5.998 msec
Short forward: 400 iter in 2.200966 sec = 5.502 msec
Short backward: 400 iter in 1.902325 sec = 4.756 msec
Seq outer: 2048 iter in 0.482156 sec = 0.235 msec
Seq inner: 2048 iter in 0.490824 sec = 0.240 msec
Transfer rates:
outside: 102400 kbytes in 1.803000 sec = 56794 kbytes/sec
middle: 102400 kbytes in 2.151312 sec = 47599 kbytes/sec
inside: 102400 kbytes in 3.436182 sec = 29801 kbytes/sec
--
Giovanni P. Tirloni
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