Disk wiping: Difference between revisions

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Latest revision as of 20:37, 15 May 2026

To wipe an HDD by writing zeros to it:

# ddrescue -f /dev/zero /dev/adaX

The average speed is above 100 MB/s, so 1 TB takes about 2-3 hours.

To wipe an Intel/Solidigm Data Center SSD by the Solidigm Storage Tool (on Linux):

Delete all partitions
# sst delete --ssd <index>

The <index> can be found by using the command

# sst show --ssd

To wipe a SSD by the ATA Security Erase command:

Delete all partitions and destroy the partitioning scheme
# gpart destroy -F adaX
Make sure the drive is not frozen and support "enhanced erase"
# camcontrol security adaX

Issue the ATA Secure Erase command
# camcontrol security adaX -U user -s Erase -h Erase

@@ Line 1: / Line 1: @@
 * To wipe an HDD by writing zeros to it:
-:<code># dd if=/dev/zero of=/dev/sdX iflag=nocache oflag=direct bs=4M</code>
+:<code>#  ddrescue -f /dev/zero /dev/adaX</code>
 :The average speed is above 100 MB/s, so 1 TB takes about 2-3 hours.
-:To print transfer statistics (to stderr):
+* To wipe an Intel/Solidigm Data Center SSD by the [https://www.solidigm.com/support-page/drivers-downloads/ka-00085.html Solidigm Storage Tool] (on Linux):
-:<code># killall -USR1 dd</code>
+#Delete all partitions
-* To wipe an [http://ark.intel.com/products/family/83425/Data-Center-SSDs Intel data center SSD] by the [https://downloadcenter.intel.com/download/23931/Intel-Solid-State-Drive-Data-Center-Tool Intel SSD Data Center Tool]:
+#<code># sst delete --ssd <index></code>
-:<code># isdct delete -intelssd ''I''</code>
+::The <code><index></code> can be found by using the command
-:The index ''I'' can be found by using the command
+::<code># sst show --ssd</code>
-:<code># isdct show -intelssd</code>
+* To wipe a SSD by the ATA Security Erase command:
-* To wipe a SSD by the [https://ata.wiki.kernel.org/index.php/ATA_Secure_Erase ATA Security Erase] command:
+#Delete all partitions and destroy the partitioning scheme
-#Make sure the drive is not frozen, support "enhanced erase" and <code>hdparm</code> prints "[number]min for SECURITY ERASE UNIT":
+#:<code># gpart destroy -F adaX</code>
-#:<code># hdparm -I /dev/sdX
+#Make sure the drive is '''not frozen''' and support '''"enhanced erase"'''
-#:[...]
+#:<code># camcontrol security adaX</code>
-#:Security:
-#::        Master password revision code = 65534
+#Issue the ATA Secure Erase command
-#::                supported
+#:<code># camcontrol security adaX -U user -s Erase -h Erase</code>
-#::        not     enabled
+[[Category: FreeBSD]]
-#::        not     locked
+[[Category: Linux]]
-#::        <span style="background:#ffff00">not     frozen</span>
-#::        not     expired: security count
-#:::                <span style="background:#ffff00">supported: enhanced erase</span>
-#::        3<span style="background:#ffff00">min for SECURITY ERASE UNIT</span>. 3min for ENHANCED SECURITY ERASE UNIT.
-#:[...]</code>
-#Set a user password (this password will be cleared on the next step, so the exact choice does not matter):
-#:<code># hdparm --user-master u --security-set-pass foo /dev/sdX</code>
-#Issue the ATA Secure Erase command:
-#:<code># hdparm --user-master u --security-erase foo /dev/sdX</code>
-#Check that security is disabled:
-#:<code># hdparm -I /dev/sdX
-#:[...]
-#:Security:
-#::        Master password revision code = 65534
-#:::                supported
-#::        <span style="background:#ffff00">not     enabled</span>
-#::        not     locked
-#::        not     frozen
-#::        not     expired: security count
-#:::                supported: enhanced erase
-#::        3min for SECURITY ERASE UNIT. 3min for ENHANCED SECURITY ERASE UNIT.
-#:[...]</code>
-[[Category: Debian GNU/Linux]]
 [[Category: Hardware]]

Disk wiping: Difference between revisions

Latest revision as of 20:37, 15 May 2026

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