Verification is supported only for an Overwrite wipe. If multiple pass is selected, it can be
performed after each pass or after the last pass.
The following table provides Wipe option details:
Option Description
Overwrite
- Single
Pass
The TX1 will write a constant pattern of zeros (00h) to the destination or
accessory drive in a single pass.
Overwrite
-
Multiple
Pass
The TX1 performs three full write passes to the destination or accessory
drive. The first pass writes zeros (00h), the second pass writes ones (FFh),
and the third pass writes a randomly selected constant value between 01h
and FEh.
Secure
Erase
(SSD
only)
The ATA Secure Erase command instructs the HDD to reset all available
blocks to the erase state. How the erase state is implemented may vary
depending on the drive manufacturer (not necessarily 00h). This feature is
available for SSD destinations only.
Note: Overwrite wipes do not overwrite an HPA and/or DCO if present on the
destination drive.
Secure Erasing
Secure Erase completely deletes all data on a solid-state drive (SSD). This operation usually
takes less than ten seconds. The Secure Erase option displays in all TX1 settings but works only
on SSDs that support it.
The TX1 does not support Secure Erase on hard disk drives (HDD). Many manufacturers of
hard disk drives (HDD) claim they support Secure Erase but not all implement this feature
properly. A drive may be rendered permanently inoperable when this feature is improperly
implemented or if the command is interrupted.
Verification does not take place for Secure Erase wipes.
94 Tableau TX1 User Guide Version 2.0
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