HP t5740 Microsoft Windows Embedded Standard 2009 (WES) v. 5.1.810 and later Q - Page 19

Local Drives, Drive Z, Drive C and Flash, HP RAMDisk, on Roaming Profiles, Write Filters - write filter disable

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Local Drives The following sections describe the local drives located on the thin client. Drive Z Drive Z is the onboard volatile memory (MS-RAMDRIVE) on the logic board of the thin client. Because drive Z is volatile memory, HP recommends that you do not use this drive to save data that you want to retain. For RAMDisk configuration instructions, see HP RAMDisk on page 41. For information about using the Z drive for roaming profiles, see Roaming Profiles on page 12. Drive C and Flash Drive C is in the onboard flash drive. HP recommends that you do not allow the free space on Drive C to drop below 15MB. CAUTION: If the available free space on the flash drive is reduced to below 15MB, the thin client becomes unstable. A write filter is used by the thin client for security and to prevent excessive flash write activity. Changes to the thin client configuration are lost when the thin client is restarted unless the write filter is disabled or a -commit command is issued, depending on the write filter being used. See the write filter topics in Write Filters on page 34 for instructions to disable the cache. For detailed information see Enhanced Write Filter Manager on page 34 and File-Based Write Filter Manager on page 38. Enable the write filter when you no longer want permanent changes. ENWW Local Drives 11

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Local Drives
The following sections describe the local drives located on the thin client.
Drive Z
Drive Z is the onboard volatile memory (MS-RAMDRIVE) on the logic board of the thin client. Because
drive Z is volatile memory, HP recommends that you do not use this drive to save data that you want to
retain. For RAMDisk configuration instructions, see
HP RAMDisk
on page
41
. For information about
using the Z drive for roaming profiles, see
Roaming Profiles
on page
12
.
Drive C and Flash
Drive C is in the onboard flash drive. HP recommends that you do not allow the free space on Drive C
to drop below 15MB.
CAUTION:
If the available free space on the flash drive is reduced to below 15MB, the thin client
becomes unstable.
A write filter is used by the thin client for security and to prevent excessive flash write activity. Changes
to the thin client configuration are lost when the thin client is restarted unless the write filter is disabled
or a
-commit
command is issued, depending on the write filter being used. See the write filter topics
in
Write Filters
on page
34
for instructions to disable the cache. For detailed information see
Enhanced
Write Filter Manager
on page
34
and
File-Based Write Filter Manager
on page
38
. Enable the write
filter when you no longer want permanent changes.
ENWW
Local Drives
11