Neil Brown wrote:
On Wednesday May 30, [EMAIL PROTECTED] wrote:
On Wed, 30 May 2007, Jon Nelson wrote:
On Thu, 31 May 2007, Richard Scobie wrote:
Jon Nelson wrote:
I am getting 70-80MB/s read rates as reported via dstat, and 60-80MB/s as
reported by dd. What I
I assembled a 3-component raid1 out of 3 4GB partitions.
After syncing, I ran the following script:
for bs in 32 64 128 192 256 384 512 768 1024 ; do \
let COUNT=2048 * 1024 / ${bs}; \
echo -n ${bs}K bs - ; \
dd if=/dev/md1 of=/dev/null bs=${bs}k count=$COUNT iflag=direct 21 |
grep 'copied'
Jon Nelson wrote:
I am getting 70-80MB/s read rates as reported via dstat, and 60-80MB/s
as reported by dd. What I don't understand is why just one disk is being
used here, instead of two or more. I tried different versions of
metadata, and using a bitmap makes no difference. I created the
On Thu, 31 May 2007, Richard Scobie wrote:
Jon Nelson wrote:
I am getting 70-80MB/s read rates as reported via dstat, and 60-80MB/s as
reported by dd. What I don't understand is why just one disk is being used
here, instead of two or more. I tried different versions of metadata, and
