Re: [openstack-dev] dd performance for wipe in cinder

2013-10-11 Thread Jeremy Stanley
On 2013-10-11 08:44:00 -0600 (-0600), Chris Friesen wrote: > Is there a particular reason why you're overwriting the entire > volume with zeros? > > A simple way to delete the contents of a filesystem would be "rm -rf > /path/to/directory" You'd like to think that, but many (most?) filesystems on

Re: [openstack-dev] dd performance for wipe in cinder

2013-10-11 Thread Chris Friesen
On 10/11/2013 03:20 AM, cosmos cosmos wrote: Hello. My name is Rucia for Samsung SDS. Now I am in trouble in cinder volume deleting. I am developing for supporting big data storage in lvm But it takes too much time for deleting of cinder lvm volume because of dd. Cinder volume is 200GB for supp

[openstack-dev] dd performance for wipe in cinder

2013-10-11 Thread cosmos cosmos
Hello. My name is Rucia for Samsung SDS. Now I am in trouble in cinder volume deleting. I am developing for supporting big data storage in lvm But 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