Re: Serial ATA RAID Controllers (5.x)

From: Giovanni P. Tirloni (gpt_at_tirloni.org)
Date: 10/28/04

  • Next message: Olivier Tharan: "Re: Best jail howto/FAQ" 
    Date: Thu, 28 Oct 2004 09:02:51 -0300
To: Charles Sprickman <spork@inch.com>

    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
_______________________________________________
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
  • Next message: Olivier Tharan: "Re: Best jail howto/FAQ"