Date: Sun, 16 Dec 2012 12:01:43 -0800 From: "Ronald F. Guilmette" <rfg@tristatelogic.com> To: freebsd-hackers@freebsd.org Subject: Another WTF moment Message-ID: <24507.1355688103@tristatelogic.com>
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I have two Seagate ST380011A drives, both in the same single system. On that system, I boot to the FreeBSD 9.1-RC3 LiveCD. The resulting dmesg messages indicate the following regarding the two drives: ada0 at ata0 bus 0 scbus2 target 0 lun 0 ada0: <ST380011A 3.54> ATA-6 device ada0: 100.000MB/s transfers (UDMA5, PIO 8192bytes) ada0: 76318MB (156299375 512 byte sectors: 16H 63S/T 16383C) ada0: Previously was known as ad0 ada1 at ata0 bus 0 scbus2 target 1 lun 0 ada1: <ST380011A 3.06> ATA-6 device ada1: 100.000MB/s transfers (UDMA5, PIO 8192bytes) ada1: 76319MB (156301488 512 byte sectors: 16H 63S/T 16383C) ada1: Previously was known as ad1 So, um, WTF? One ST380011A is 156299375 sectors big, and the other one is 156301488 big. How exactly does this happen?home | help
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