Groups > RedHat > device mapper development > Re: [dm-devel] dm-ioband = smarter than me




Re: [dm-devel] dm-ioband = smarter than me

Re: [dm-devel] dm-ioband = smarter than me
Fri, 4 Apr 2008 19:40:40 -0700
On Apr 4, 2008, at 5:45 PM, Alasdair G Kergon wrote:
> On Fri, Apr 04, 2008 at 04:53:32PM -0700, Clint Moore wrote:
>> [root@ test 2.6.24]# echo "0 $(blockdev --getsize /dev/sda3)
ioband /
>> dev/sda3 1" | dmsetup create ioband1
>           ^ why 1?

	I was following the directions to the letter as much as possible to  
just confirm that it actually worked.  Hence, just giving 1.

	I was following
http://forum.openvz.org/index.php?t=tree&goto=26914&&srch=dm-ioband#
msg_26914


> dmesg gives better error message

Here is the two lines from syslog:

device-mapper: table: 253:0: ioband: band: device lookup failed
device-mapper: ioctl: error adding target to table

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