Hardware is 2x 2.6ghz cpu, 6gb RAM, 2 SAS arrays consisting of 24 drives
in hardware RAID 6, 5.87tb total. The two arrays were added to a volume
group and multiple logical volumes were created. I am getting over
180MB/s read speeds and 40MB/s write speeds on all the LV's except one.
One of the LV's is getting ~1MB/s write speeds, however read speeds
are fine. There are NO snapshots.
meta-data=/dev/mapper/vg0-shared isize=1024 agcount=32,
agsize=17616096 blks
= sectsz=512 attr=2
data = bsize=4096 blocks=563715072, imaxpct=25
= sunit=0 swidth=0 blks, unwritten=1
naming =version 2 bsize=4096
log =internal bsize=4096 blocks=32768, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
# dd if=/dev/zero of=zero bs=1k count=1048576
1048576+0 records in
1048576+0 records out
1073741824 bytes (1.1 GB) copied, 2089.95 seconds, 514 kB/s
# dd if=zero of=/dev/null bs=1k
1048576+0 records in
1048576+0 records out
1073741824 bytes (1.1 GB) copied, 4.70878 seconds, 228 MB/s
Any idea what is wrong with this and how to fix it?
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