Re: [libvirt] [RFC] Usage about 'virsh vol-wipe vol_name'

> > On Fri, Apr 12, 2013 at 10:22 AM, harryxiyou <harryxiyou(a)gmail.com&gt; wrote: >> >> Hi all, >> >> I am not very clear about the usage of ‘virsh vol-wipe vol_name’. I think >> if 'virsh vol-wipe vol_name' can just wipe all the datas in this volume >> and >> it is similar as we format a volume which the datas would be wiped, >> right? >> After this wipe, we can use this volume like a new one. > > After i read the back-end storage drivers for libvirt, i cannot find any > storage > driver like following > > 128 VIR_STORAGE_POOL_DIR, /* Local directory */ > 129 VIR_STORAGE_POOL_FS, /* Local filesystem */ > 130 VIR_STORAGE_POOL_NETFS, /* Networked filesystem - eg NFS, GFS, > etc */ > 131 VIR_STORAGE_POOL_LOGICAL, /* Logical volume groups / volumes */ > 132 VIR_STORAGE_POOL_DISK, /* Disk partitions */ > 133 VIR_STORAGE_POOL_ISCSI, /* iSCSI targets */ > 134 VIR_STORAGE_POOL_SCSI, /* SCSI HBA */ > 135 VIR_STORAGE_POOL_MPATH, /* Multipath devices */ > 136 VIR_STORAGE_POOL_RBD, /* RADOS Block Device */ > 137 VIR_STORAGE_POOL_SHEEPDOG, /* Sheepdog device */ > > has realized storageVolumeWipe feature. So how could we test this feature? As Michal suggested in your previous mail, cscope is a good choice for you to learn libvirt. E.g. If you looked at the public API for volWipe in src/libvirt.c, and using cscope like: cs find s volWipe You will get where it's implemented.