create a image that stores information in erasure-pool failed

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hi,all:
   I created an erasure-code pool ,I create a 1GB image named fool that stores information in the erasure-code pool,however the action 
failed,with tips as follows:

root at mon1:~# rbd create foo --size 1024 --pool ecpool
rbd: create error: (95) Operation not supported2014-07-13 10:32:55.311330 7f1b6563f780 -1 librbd: error adding image to directory: (95) Operation not supported

since I created another image in general pool ,the action succeed.so I wonder wheter it's my mistake or it's a problem in erasure-code pool.Could you help me solving this puzzing problem?thank you very much!
my cluster are deployed as follows:

one monitor
six osds
EC pool :ecpool with 100pgs,profile:jerasure,k=4,m=2,reed_sol_van 


yours sincerely,
ifstillfly
 



qixiaofang at chinacloud.com.cn
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