Option Description
Overwrite -
Multiple Pass
TX1 performs three full write passes to the destination or accessory drive.
The first pass writes zeros (0x0000) and the second pass writes ones
(0xFFFF). When a custom data pattern is specified, it will be written only
on the third pass. Otherwise, the third pass writes a randomly selected
constant value between 0x0001 and 0xFFFE.
Verification is optional. If enabled, it can be configured to verify after each
wipe pass or after only the last pass.
Note that when an HPA/DCO/AMA configuration is present on a drive, a
toggle may be set to remove such configuration prior to starting the wipe,
which will ensure the entire accessible drive space is overwritten.
Secure Erase
(SSD only)
The ATA Secure Erase command instructs the drive to reset all available
blocks to the erase state. How the erase state is implemented on the drive is
not mandated by the ATA specification, which means the final data state
on drives is manufacturer dependent (and not necessarily all zeros).
Due to the indeterminate nature of the post-wipe data state, TX1 does not
offer verification for Secure Erase wipes.
Due to known issues with inconsistent and unreliable Secure Erase
support on rotating drives (HDDs), TX1 only supports this feature on
SSDs.
Note that Secure Erase will erase all accessible drive space, but it will not
necessarily erase over-provisioned space or other space reserved by the
drive's internal controller.
TX1 will force removal of any detected HPA/DCO/AMA configurations
prior to starting a Secure Erase wipe, except for USB connected media. TX1
cannot remove HPA/DCO/AMA configurations for USB connected media,
which means Secure Erase is not supported in that situation. See the note
at the bottom of this table regarding handling of HPA/DCO/AMA
configurations for USB connected media.
Sanitize - Block
Erase (SSD
only)
The ATA and SCSI Sanitize ‒ Block Erase commands instruct the drive to
erase all flash memory blocks. This is typically done electrically, not
through writing of data to the drive. While the state of post-wipe data is
not mandated by the ATA/SCSI specifications, Sanitize ‒ Block Erase
typically leaves a drive in a cleared (all zeros) state, which allows for post-
wipe verification.
Note that Sanitize ‒ Block Erase will erase all user accessible drive space as
well as over-provisioned space and any other space reserved by the drive's
internal controller.
TX1 will force removal of any detected HPA/DCO/AMA configurations
prior to starting a Sanitize ‒ Block Erase wipe, except for USB connected
media. TX1 cannot remove HPA/DCO/AMA configurations for USB
connected media, which means Sanitize ‒ Block Erase is not supported in
that situation. See the note at the bottom of this table regarding handling of
HPA/DCO/AMA configurations for USB connected media.
3.3. Media utilities (traditional media)
ISTX240300-UGD-EN-1
User Guide
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