Cache Mode When Refresh Is Going On; Periodic Refresh; Manual Refresh; Notes On Refresh - NEC N8103-126 User Manual

Raid battery backup unit

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2. Cache Mode when refresh is going on

Cache Mode changes to "Write Through" during refresh when the setting is "normal Write

Back mode". If the setting is "constant Write Back mode", Cache Mode keeps "Write Back".

On the Universal RAID Utility, normal Write Back mode is display as Auto Switch, and

constant Write Back mode is displayed as Write Back.

Since the initial refresh, the refresh is not automatically run. So, you should schedule the

periodic refresh for the stable operation using the following tool. The standard interval is

the once in 3 months.

＜Periodic Refreshment Tool＞

for Windows

http://www.58support.nec.co.jp/global/download/411298-A01/index.html

for Linux/VMware ESX 3.5

http://www.58support.nec.co.jp/global/download/411298-A02/index.html

for VMware ESX 4.x

http://www.58support.nec.co.jp/global/download/411298-A03/index.html

Do not use this tool for a purpose except the refresh of the battery.

When "Cache Mode(Current)" does not switch to "Write Back" even if it passes over 9

hours from the refresh beginning, there is possibility of the battery failure.

The manual refresh can be executed by this tool, too.

Since the initial refresh, the refresh is not automatically run. However, there is the case that

the battery requires the refresh. So, execute the manual refresh using the tool of "3.

Periodic refresh" in this chapter.

When the system is rebooted although the initial refresh is running.

If the discharging is not finished yet, the RAID Controller restarts the refresh.

If the discharging is already finished, the RAID Controller resumes the refresh.

When the system is rebooted although the manual refresh is running.

If the discharging is not finished yet, the RAID Controller stops the refresh.

If the discharging is already finished, the RAID Controller resumes the refresh.

When the refresh is running, the temperature of the battery rises than usual.

Sometimes the refresh takes long time because it stops when the temperature is high.

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