No error report with writing (dd of=/dev/sda ...), but can't change data, (dd if=/dev/sda) dump unchanged.
On Wed, Jun 29, 2011 at 1:47 PM, Stefan Hajnoczi <stefa...@gmail.com> wrote: > On Wed, Jun 29, 2011 at 5:47 AM, Fam Zheng <famc...@gmail.com> wrote: >> Stream optimized VMDK image allocates minimized space for a compressed >> cluster, which means if there is high compress ratio, a cluster >> possibly only takes one physical sector in the file. It makes >> overwriting hard, especially when new data needs more sectors than >> previously allocated. >> >> Attach the image to VMware and boot the VM to test this format, it >> seems that VMware wouldn’t do write to allocated clusters, but can >> allocate new cluster to save data. > > What happens when the VM writes to allocated clusters? EIO? > > Stefan > -- Best regards! Fam Zheng
