HP ElitePad 1000 G2 Healthcare Tablet Manual de usuario descargar pdf (Pagina 10)

3 Unied Write Filter

Unied Write Filter (UWF) is a software tool that protects the contents of and decreases wear on the ash

drive of a thin client by redirecting and caching writes in an overlay, which is a virtual storage space in RAM

that tracks changes to a protected volume (the ash drive). The user experience in Windows is unaected

because the operating system maintains the appearance of writing to the ash drive. When a system restart

occurs, the overlay cache is cleared, and any changes made since the last system startup are lost

permanently. If it is necessary to make permanent system

congurations, an administrator can commit

(persist by writing through to the protected volume) changes stored in the overlay cache prior to a system

restart.

NOTE: The overlay cache is cleared only by a system restart, so users can log out or switch between user

accounts without losing the cached information.

UWF allows you to manage on a per-le basis, so you can immediately (without a system restart) commit les

individually or restore les to their previous state from the underlying volume by discarding the changes. You

can also exclude les from protection so that changes to them are always written directly to the ash drive.

However, you cannot commit the entire UWF overlay cache in a single command.

CAUTION: HP highly recommends proper write lter usage for standard thin client use cases. Proper usage

includes making sure the write lter is enabled during end-user (non-administrator) operation and is disabled

only temporarily by an administrator needing to make changes to the system. The write lter should be re-

enabled as soon as the changes are completed.

HP further recommends never enabling the Windows Page File feature unless the system is congured with a

ash drive that has a capacity suicient for the high volume of writes this feature produces. The use of the

Windows Page File feature with low-capacity ash drives will result in premature wearing of the ash drive,

decreased performance, and a decrease in the lifespan of the thin client.

If your use case requires non-standard write lter usage, please contact HP to ensure that your thin clients

are

congured properly.

4 Chapter 3 Unied Write Filter

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 22 23

Sin comentarios

HP ElitePad 1000 G2 Healthcare Tablet Manual de usuario Pagina 10