DEC 4000 600 series, Руководство пользователя, Страница: 106 / 242

Operating RZ- and RF-Series Disk Drives
Write-Protecting
an RZ- or
RF-Series Disk The RZ- and some RF-series drives, have no Write-Protect
button. You set write-protection through console commands in
console mode.
Software Write-Protect for RZ- and RF-Series Drives
To software write-protect an RZ- or RF-series drive on the
OpenVMS AXP operating system, enter the following DCL
command:
$ MOUNT device_name volume_label/SYSTEM/NOWRITE
The device_name is the device name shown using the OpenVMS
AXP DCL command
SHOW DEVICE DI
. The volume_label is the
volume label for the device. For example, the following command
will software write-protect device $1$DIA1:
$ MOUNT $1$DIA1 OMEGA/SYSTEM/NOWRITE
To write-enable the device, dismount the device, and then
remount it (without using the /NOWRITE qualifier). For
example:
$ DISMOUNT $1$DIA1 OMEGA/SYSTEM
$ MOUNT $1$DIA1 OMEGA/SYSTEM
To check the protection status of the drive on the OpenVMS AXP
operating system, enter
SHOW DEVICE DI
. A write-protected drive
will show a device status of ‘‘
Mounted wrtlck
’’. Refer to your
OpenVMS AXP documentation for more information on using the
MOUNT utility.
Caution
When you dismount the device, then mount it again,
it will no longer be write-protected, unless you use the
/NOWRITE qualifier.
5–8 Operating Mass Storage Devices