On 7/27/2011 12:42 AM, Simon Matthews wrote: > On Sun, Jul 17, 2011 at 5:11 AM, John Robinson > <john.robinson@xxxxxxxxxxxxxxxx> wrote: > >> Pretty poor. CentOS 5, Intel ICH10, md RAID 6 over 5 7200rpm 1TB drives, >> then LVM, then ext3: >> # dd if=/dev/zero of=test bs=4096 count=262144 >> 262144+0 records in >> 262144+0 records out >> 1073741824 bytes (1.1 GB) copied, 2.5253 seconds, 425 MB/s > > What hard drive offers a sustained data rate of 425 MB/s or even half that? 425 MB/s / 3 spindles = 142 MB/s per spindle That's not poor, it's excellent. Which drives are these? WD Black, Seagate, Hitachi? -- Stan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
