Configuring Your Server 4-65
The Write Policy has the following modes depending on combination with WrtThru for BAD BBU.
Select a mode suitable for your environment.
WrtThru for BAD BBU
Checked
Unchecked
WBack
Normal write back mode
(recommended)
This mode is available only when
N8103-120F RAID Battery Backup
Unit is installed.
The controller uses cache memory
for writing.
However, if the battery is being
charged or failed, the controller
operates in WThru (write through)
mode automatically. Thus, this mode
can provide higher data security.
Constant write back mode
This mode is available even if N8103-
120F RAID Battery Backup Unit is not
installed.
The controller always uses cache
memory for writing. In this mode, the
data in cache memory may not be
protected from being damaged if the
power failure occurs due to
charge/discharge or defect of the
battery. Be sure to use UPS when
specifying this mode for write policy.
Write
Policy
WThru
Write through mode
This mode is recommended when
N8103-120F RAID Battery Backup
Unit is not installed.
The controller does not use cache
memory for writing data.
* This mode is unavailable.
If you do not check "WrtThru for BAD
BBU" at creation of VD, this item is
automatically checked after the VD has
been created.
You can change parameters for VD definition except for RAID level and Stripe Size. On the
WebBIOS Top Menu, click [Virtual Disks] and specify parameters in "Policies" frame, then click
[Change].
Содержание Express5800/120Rj-2
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Страница 19: ...Notes on Using Your Server 1 3 Internal View ...
Страница 34: ...1 18 Notes on Using Your Server This page is intentionally left blank ...
Страница 90: ...3 24 Setting Up Your Server This page is intentionally left blank ...
Страница 129: ...Configuring Your Server 4 39 The detailed settings is continued to the next page Click Next to view more information ...
Страница 140: ...4 50 Configuring Your Server Use this menu to define several physical drives PD as a disk group DG ...
Страница 164: ...4 74 Configuring Your Server 3 Setting menu for VD 0 is displayed ...
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Страница 215: ...Installing and Using Utilities 6 9 4 Click Parameter File Creator Parameter File Creator will appear ...
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Страница 350: ...9 74 Upgrading Your Server Removal Remove the backup device in reverse order of the installation steps ...
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Страница 364: ...C 2 IRQ This page is intentionally left blank ...
Страница 412: ...E 24 Installing Windows Server 2003 This page is intentionally left blank ...
Страница 414: ...F 2 Using a Client Computer Which Has a CD Drive This page is intentionally left blank ...
Страница 418: ...G 4 Product Configuration Record Table This page is intentionally left blank ...