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Old 08-16-2010, 04:49 PM
 
Default hdparm (was: understanding smart logs)

"Bryn M. Reeves" <bmr@redhat.com> writes:
> At a bare minimum you should use the drive's built-in secure erase
> feature (either using hdparm's (experimental) support or using the
> vendor's proprietary tools).

Does the hdparm secure erase work on most motherboards? It seems that
most of newer boards have a bios that disables the secure erase at bios
boot time. Only my oldest mobo allows me to use the security erase. I
find that I have to move my drives to that motherboard before I can
erase them, which is a royal pain in the neck. (All the systems are
running the exact same F13 64-bit fully up to date OS.)

-wolfgang
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Wolfgang S. Rupprecht http://www.wsrcc.com/wolfgang/ (IPv6-only)
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Old 08-16-2010, 05:42 PM
Hannes Frederic Sowa
 
Default hdparm (was: understanding smart logs)

On Mon, Aug 16, 2010 at 6:49 PM, Wolfgang S. Rupprecht
<wolfgang.rupprecht@gmail.com> wrote:
> Does the hdparm secure erase work on most motherboards? *It seems that
> most of newer boards have a bios that disables the secure erase at bios
> boot time. *Only my oldest mobo allows me to use the security erase. *I
> find that I have to move my drives to that motherboard before I can
> erase them, which is a royal pain in the neck. *(All the systems are
> running the exact same F13 64-bit fully up to date OS.)

It depends on the BIOS. A lot of them freeze the device and so
preventing the security-erase. Have a look at your disk with hdparm
-I. In the last paragraph it will tell you if your disk is frozen.

I use a usb-sata-adapter to issue security-erase commands to drives.
You could also try to hotplug your disk.

hannes
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