IBM 201 Manuale Utente
persistent images as one-time events or regularly repeated events. You can access
the PSM tasks in the Disks/Persistent Storage Manager task group within the
Windows 2000 for Network Attached Storage user interface, in one of two ways:
the PSM tasks in the Disks/Persistent Storage Manager task group within the
Windows 2000 for Network Attached Storage user interface, in one of two ways:
v
By going to the IBM NAS Admin console on the appliance desktop (via Terminal
Services or directly-attached keyboard, monitor, and mouse) and selecting
Persistent Storage Manager (this automatically launches the Windows 2000 for
Network Attached Storage user interface and brings up the Disks/Persistent
Storage Manager page containing the PSM tasks).
Services or directly-attached keyboard, monitor, and mouse) and selecting
Persistent Storage Manager (this automatically launches the Windows 2000 for
Network Attached Storage user interface and brings up the Disks/Persistent
Storage Manager page containing the PSM tasks).
v
By starting the Windows 2000 for Network Attached Storage user interface
directly
directly
Once you create a persistent image, it appears as a directory on the original drive.
Access rights and permissions from the original drive are inherited by the persistent
image. Persistent images are used in the same way as conventional drives.
However, unlike conventional drives, persistent images are records of the content of
the original drive at the time you created the persistent image. Persistent images
are retained following shutdown and reboot.
Access rights and permissions from the original drive are inherited by the persistent
image. Persistent images are used in the same way as conventional drives.
However, unlike conventional drives, persistent images are records of the content of
the original drive at the time you created the persistent image. Persistent images
are retained following shutdown and reboot.
There are six PSM tasks in the Disks/Persistent Storage Manager group:
v
Global Settings
v
Volume Settings
v
Persistent Images
v
Schedules
v
Restore Persistent Images
v
Disaster Recovery
Each of these tasks are described in the following sections. More detailed
descriptions and instructions for each of the control panels and topics are contained
in the online help.
descriptions and instructions for each of the control panels and topics are contained
in the online help.
Global Settings
On this panel you can configure the following attributes of the persistent image
function:
function:
Attribute:
Default value:
Maximum number of persistent images
250
Inactive period
5 seconds
Inactive period wait timeout
15 minutes
Volume Settings
This panel displays statistics for each volume, such as total volume capacity, free
space, and cache file size and usage. You can also select any volume and
configure volume-specific PSM attributes for that volume, such as:
space, and cache file size and usage. You can also select any volume and
configure volume-specific PSM attributes for that volume, such as:
Attribute:
Default value:
Cache-full warning threshold
80 percent full
Cache-full persistent image deletion threshold
90 percent full
Cache size
15 percent (of the total volume
capacity)
capacity)
Chapter 6. Additional administrative functions
37