[zfs-discuss] ZFS, Smashing Baby demo is on YouTube

2008-04-16 Thread james hughes
Hello. A video of the ZFS survivability demonstration is available on YouTube. This was a live demonstration in St Petersburg Russia in front of ~2000 people of ZFS reliability by operating a sledge hammer on disk drives running a ZFS RAID Z2 group.

Re: [zfs-discuss] Re: [security-discuss] Thoughts on ZFS Secure Delete - without using Crypto

2007-01-03 Thread james hughes
On Jan 2, 2007, at 6:48 AM, Darren Reed wrote: Darren J Moffat wrote: ... Of course. I didn't mention it because I thought it was obvious but this would NOT break the COW or the transactional integrity of ZFS. One of the possible ways that the to be bleached blocks are dealt with in

Re: [security-discuss] Re: [zfs-discuss] Thoughts on ZFS Secure Delete - without using Crypto

2006-12-20 Thread james hughes
Not to add a cold blanket to this... This would be mostly a vanity erase not really a serious security erase since it will not over write the remnants of remapped sectors. Serious security erase software will unmap sectors and erase both locations using special microcode features. While

Re: [security-discuss] Re: [zfs-discuss] Thoughts on ZFS Secure Delete - without using Crypto

2006-12-20 Thread james hughes
On Dec 20, 2006, at 1:37 PM, Bill Sommerfeld wrote: On Wed, 2006-12-20 at 03:21 -0800, james hughes wrote: This would be mostly a vanity erase not really a serious security erase since it will not over write the remnants of remapped sectors. Yup. As usual, your milage will vary depending

Re: [security-discuss] Re: [zfs-discuss] Thoughts on ZFS Secure Delete - without using Crypto

2006-12-20 Thread james hughes
On Dec 20, 2006, at 5:46 AM, Darren J Moffat wrote: james hughes wrote: Not to add a cold blanket to this... This would be mostly a vanity erase not really a serious security erase since it will not over write the remnants of remapped sectors. Indeed and as you said there is other