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The Question is:
Hi,
This is not technically a VMS issue but you may be able to help us.
We have just decomissioned a VAX 4000_400. We have managed to erase all disks,
including the System disk, apart from those connected via an HSD controller.
From the >>> prompt we can
set host/dup/dssi/bus:1 1 which brings up an HSD01> prompt. We can get into
PARAMS but cannot get any of the commmands to work. We cannot find any
manuals, on-line or otherwise, to help. we can SELECT the drives but when we
try to FORMAT them we get a DRI
VE NOT SELECTED message.
Can you help?
Regards,
Adrian Fisher
Marston Book Services
The Answer is :
If you are concerned about data security, evaluate the cost of data
exposure against the potential profit from selling this storage
equipment. Upon consideration, the most effective and economical
approach here may involve the physical destruction of the disk(s).
Old SCSI disks are of comparatively very little value.
Existing Ask The Wizard topics related to data erasure and to data
security include (841), (3926), (4286), (4598), and (7320).
Disk bad block handling is discussed in topic (6926).
As this configuration has a DSSI, specific models of DSSI disks do
offer an ERASE utility, similar to the PARAMS and DIRECT utilities
-- the DIRECT utility gets you a list of the utilities present in
the particular DSSI ISE. The RF31, RF35, RF36, RF72, RF73, and
RF74 series disk ISEs offer the ERRASE utility and can thus perform
disk data erasure, though the RF30 and RF71 do not offer the ERASE
utility. The OpenVMS FAQ also has general DSSI and SET HOST/DUP
information, and some related pointers.
SCSI disks -- such as those connected to an HSD-series DSSI-to-SCSI
storage controller (such as the HSD05 or HSD10 or similar), and those
SCSI disks directly connected to a host SCSI controller -- do not
offer a disk-integrated nor a controller-integrated disk erasure
capability.
The usual approach here would thus involve booting a distribution
disk or other similar mechanism, and using the DCL command
INITIALIZE/ERASE. (Pattern erasure capabilities are also available
within OpenVMS, please see the existing discussions cited above.)
This erasure may or may not meet local data security requirements,
but it will make reading any data left on the disk media difficult
and thus very expensive for any potential attackers.
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