i have deploy multipath on netapp DATA ontap,but there is no improvment on throughput.
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if=/dev/zero of=fc-lv bs=4K count=1M about 270~280M/s (netapp lun with multipath)
dd if=/dev/zero of=fc-lv bs=4K count=2M about 150M/s (netapp lun with multipath)
hdparm -t /dev/sda 380.40 MB/sec (local disk)
hdparm -t /dev/sdb 131.24 MB/sec(netapp lun with multipath)
-----------------------
that is the conf
device {
vendor "NETAPP"
product "LUN.*"
getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
features "1 queue_if_no_path"
hardware_handler "0"
path_selector "round-robin 0"
path_grouping_policy multibus
failback immediate
rr_weight uniform
rr_min_io 128
path_checker directio
prio netapp
}
vendor "NETAPP"
product "LUN.*"
getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
features "1 queue_if_no_path"
hardware_handler "0"
path_selector "round-robin 0"
path_grouping_policy multibus
failback immediate
rr_weight uniform
rr_min_io 128
path_checker directio
prio netapp
}
At 2011-04-27 14:49:57，"Christophe Varoqui" <christophe.varoqui@xxxxxxxxx> wrote: >On mar., 2011-04-26 at 22:23 -0500, Benjamin Marzinski wrote: >> This is the second part of the NetApp patch from George Martin. It simply >> renames netapp.c to ontap.c and edits the Makefile to build it. >> >Thank you, applied. > >-- >Christophe Varoqui >OpenSVC - Software to scale >http://www.opensvc.com/ > >-- >dm-devel mailing list >dm-devel@xxxxxxxxxx >https://www.redhat.com/mailman/listinfo/dm-devel
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