Re: [CentOS] issue_discards in lvm.conf

2014-06-16 Thread m . roth
Dan Hyatt wrote: >I worked in the SSD lab at STEC for a while, testing SSD's and fixing > SSD's that failed... > I knew how to blow up the drives, run them well beyond the capacity of > spinner drives. But then I would flash the firmware and the drive would > be good as new. I would be runnin

Re: [CentOS] issue_discards in lvm.conf

2014-06-16 Thread Dan Hyatt
I worked in the SSD lab at STEC for a while, testing SSD's and fixing SSD's that failed... When I was working in the lab on the Zuess drives (First enterprise class SSD drive) . When the drives came back from our customers hosed, all we had to do was re-flash the firmware (helps if you have

Re: [CentOS] issue_discards in lvm.conf

2014-06-12 Thread Devin Reade
--On Thursday, June 12, 2014 10:35:26 AM -0400 "James B. Byrne" wrote: > I have a question about SSD respecting security. [...] > I have come to the rather > unsettling conclusion that it is effectively impossible to 'sanitize' > these things short of complete and utter physical destruction, pr

Re: [CentOS] issue_discards in lvm.conf

2014-06-12 Thread m . roth
James B. Byrne wrote: > On Thu Jun 12 17:21:43 UTC 2014, John R Pierce pierce at hogranch.com > wrote: > >> On 6/12/2014 10:12 AM, m.roth at 5-cent.us wrote: >>> We use two methods: for the drives that are totally dead, or*sigh* the >>> SCSI drives, they get deGaussed. For SATA that's still runnin

Re: [CentOS] issue_discards in lvm.conf

2014-06-12 Thread James B. Byrne
On Thu Jun 12 17:21:43 UTC 2014, John R Pierce pierce at hogranch.com wrote: > On 6/12/2014 10:12 AM, m.roth at 5-cent.us wrote: >> We use two methods: for the drives that are totally dead, or*sigh* the >> SCSI drives, they get deGaussed. For SATA that's still running, we use >> DBAN.*Great* s

Re: [CentOS] issue_discards in lvm.conf

2014-06-12 Thread John R Pierce
On 6/12/2014 10:12 AM, m.r...@5-cent.us wrote: > We use two methods: for the drives that are totally dead, or*sigh* the > SCSI drives, they get deGaussed. For SATA that's still running, we use > DBAN.*Great* software. From what I've read, one pass would probably be > good enough, given how data's

Re: [CentOS] issue_discards in lvm.conf

2014-06-12 Thread m . roth
SilverTip257 wrote: > On Thu, Jun 12, 2014 at 10:35 AM, James B. Byrne > wrote: >> On Wed, June 11, 2014 18:31, Frank Cox wrote: >> I have a question about SSD respecting security. Recently I have been >> investigating sanitizing these devices, together with 'smart-phones, >> tablets and pads wh

Re: [CentOS] issue_discards in lvm.conf

2014-06-12 Thread John R Pierce
On 6/12/2014 9:38 AM, SilverTip257 wrote: > A former employer of mine contracts out destruction of conventional hard > drives with a machine that has a hydraulic arm and a wedge. Effectively > bending the platters and some of the drive. Hardware destruction (prior to > recycling/disposal) in cert

Re: [CentOS] issue_discards in lvm.conf

2014-06-12 Thread SilverTip257
On Thu, Jun 12, 2014 at 10:35 AM, James B. Byrne wrote: > > On Wed, June 11, 2014 18:31, Frank Cox wrote: > > I decided that the next time I reformatted my main desktop computer > (this one) > > I would have a ssd installed in it to use for the boot drive. Now that > Centos > > 7 is on the horiz

Re: [CentOS] issue_discards in lvm.conf

2014-06-12 Thread James B. Byrne
On Wed, June 11, 2014 18:31, Frank Cox wrote: > I decided that the next time I reformatted my main desktop computer (this one) > I would have a ssd installed in it to use for the boot drive. Now that Centos > 7 is on the horizon, I'm thinking that the time is approaching when I'll want > to do th