HP DesignJet T1530 User guide - Page 138

Disk Wipe, Non-Secure, Secure Fast Erase 1 pass, Secure Sanitizing Erase 5 passes, Setup, Security

Page 138 highlights

you turn it on, but old temporary files that were already on the hard disk are not erased retroactively. If you want to erase the old files too, see Disk Wipe on page 130. Secure File Erase provides three different levels of security: ● Non-Secure: all pointers to the information are erased. The information itself remains on the hard disk until the disk space it occupies is needed for other purposes, and it is then overwritten. While it remains on the disk, it is difficult for most people to access, but may be accessed using software designed for the purpose. This is the normal method in which files are erased on most computer systems; it is the fastest method but the least secure. ● Secure Fast Erase (1 pass): all pointers to the information are erased, and the information itself is also overwritten with a fixed character pattern. This method is slower than Non-Secure, but more secure. It may still be possible to access fragments of the erased information by using special tools to detect residual magnetic traces. ● Secure Sanitizing Erase (5 passes): all pointers to the information are erased, and the information itself is repetitively overwritten using an algorithm designed to eliminate any residual traces. This is the slowest method, but the most secure. Secure Sanitizing Erase meets the US Department of Defense 5220-22.m requirements for clearing and sanitization of disk media. This is the default security level when using Secure File Erase. While files are being erased, the printer's performance may be affected. Secure File Erase is one of the facilities provided by Web JetAdmin, which is HP's free Web-based print management software: see http://www.hp.com/go/webjetadmin. If you have difficulty in using Secure File Erase from Web JetAdmin, please contact HP Support: see Contact HP Support on page 178. The Secure File Erase configuration can be changed from Web JetAdmin or the Embedded Web Server (Setup > Security). Disk Wipe Disk Wipe is the same as Secure File Erase (see Secure File Erase on page 129), except that it erases all temporary files, including old ones. The Disk Wipe configuration can be changed from Web JetAdmin or the Embedded Web Server (Setup > Security). NOTE: If you choose to erase the whole hard disk, you may be asked to restart the printer several times during the process, which will take about 6 hours with Secure Fast Erase or 24 hours with Secure Sanitizing Erase. 130 Chapter 15 Maintaining the printer ENWW

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you turn it on, but old temporary
files
that were already on the hard disk are not erased retroactively. If you
want to erase the old
files
too, see
Disk Wipe
on page
130
.
Secure File Erase provides three
different
levels of security:
Non-Secure:
all pointers to the information are erased. The information itself remains on the hard disk
until the disk space it occupies is needed for other purposes, and it is then overwritten. While it remains
on the disk, it is
difficult
for most people to access, but may be accessed using software designed for the
purpose. This is the normal method in which
files
are erased on most computer systems; it is the fastest
method but the least secure.
Secure Fast Erase (1 pass):
all pointers to the information are erased, and the information itself is also
overwritten with a
fixed
character pattern. This method is slower than Non-Secure, but more secure. It
may still be possible to access fragments of the erased information by using special tools to detect
residual magnetic traces.
Secure Sanitizing Erase (5 passes):
all pointers to the information are erased, and the information itself
is repetitively overwritten using an algorithm designed to eliminate any residual traces. This is the
slowest method, but the most secure. Secure Sanitizing Erase meets the US Department of Defense
5220-22.m requirements for clearing and sanitization of disk media. This is the default security level
when using Secure File Erase.
While
files
are being erased, the printer's performance may be
affected.
Secure File Erase is one of the facilities provided by Web JetAdmin, which is HP's free Web-based print
management software: see
go/webjetadmin
.
If you have
difficulty
in using Secure File Erase from Web JetAdmin, please contact HP Support: see
Contact
HP Support
on page
178
.
The Secure File Erase
configuration
can be changed from Web JetAdmin or the Embedded Web Server (
Setup
>
Security
).
Disk Wipe
Disk Wipe is the same as Secure File Erase (see
Secure File Erase
on page
129
), except that it erases all
temporary
files,
including old ones.
The Disk Wipe
configuration
can be changed from Web JetAdmin or the Embedded Web Server (
Setup
>
Security
).
NOTE:
If you choose to erase the whole hard disk, you may be asked to restart the printer several times
during the process, which will take about 6 hours with Secure Fast Erase or 24 hours with Secure Sanitizing
Erase.
130
Chapter 15
Maintaining the printer
ENWW