Hey,
Please, tag emails' subjects. Thanks, FF On 26/12/13 16:56 +0900, cosmos cosmos wrote:
Hello.My name is Rucia for Samsung SDS. I had in truouble in volume deleting. I am developing for supporting big data storage such as hadoop in lvm. it use as a full disk io for deleting of cinder lvm volume because of dd the high disk I/O affects the other hadoop instance on same host. If using dd for deleting the volume, it takes too much time for deleting of cinder lvm volume because of dd. Cinder volume is 200GB for supporting hadoop master data. When i delete cinder volume in using 'dd if=/dev/zero of $cinder-volume count= 1000000 bs=1M' it takes about 30 minutes. So When I delete the volume, i added disk id scheduler, ionice. Thanks. https://blueprints.launchpad.net/cinder/+spec/ when-deleting-volume-dd-performance
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