On Thu, Sep 29, 2011 at 3:54 PM, David Lum <[email protected]> wrote: > A worthy read > http://isc.sans.edu/diary/The+SSD+dilemma/11656
Software used to wipe a single file is pretty dubious anyway. There's all sorts of ways that can go wrong: * Filesystems that journal updates (such as NTFS) may leave data in the journal * Filesystems that make snapshots (such as NTFS) * Filesystems that do compression (such as NTFS) may make temporary copies * Filesystems that do copy-on-write-always (such as ZFS) * Filesystems that do local caching (such as Offline Files) * Hard disks that transparently remap bad blocks (anything since 1988 or so) * RAID and other data redundancy schemes * Page file remnants * Temp file remnants Storage isn't a dumb magnetic disk with data in simple blocks anymore. Hasn't been for some time. I'm not sure how good even whole disk overwrite is these days. I still trust it for my own data, and for "regular business data", but NSA/DoD hasn't allowed it since 2007. -- Ben ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
