Cautions And Restrictions For N8103-90 Disk Array Controller(External Sas Hdd) And N8103-91 Disk Array Controller(Internal Sas Hdd) - NEC Express5800 series User Manual

64 CAUTIONS AND RESTRICTIONS
5.2 Cautions and Restrictions for N8103-90 Disk array
controller(External SAS HDD) and N8103-91 Disk
array controller(Internal SAS HDD)
MSM Operation
"Date/Time" of MSM Logs is sometimes shown as "xx seconds from reboot". In this
case, please check the Application Log of System Events.
Every time MSM is started when an additional battery (N8103-94) is not attached with,
the next message is output by MSM log and event log (application). Even if Write Thru is
set in Write Policy, this is output.
[ MSM Log ]
Controller ID:x BBU disables; changing WB logical drivers to WT.
[ Event Log(Application) ]
Source : MR_MONITOR
Event ID : 195
* x is controller ID number.
It can be restrained by this log printout's inputting `D' with the next message
indicated at the time of a server start.
The battery hardware is missing or malfunctioning, or the battery is
unplugged.
will not function.
Press 'D' to disable this warning (if your controller does not have a battery).
If redundant power unit is not installed to "N8141-37 Disk Expansion Unit", the
following popup message may be shown up while installing MSM. And you may see the
following event in MSM and application event logs at every boot time. However those are
no problem.
[ MSM Log ]
Controller ID:x BBU disables; changing WB logical drivers to WT.
[ Event Log(Application) ]
Source : MR_MONITOR
Event ID : 173
* x is controller ID number.
When using N8141-37F Disk Expansion Unit which is connected to N8103-90F Disk
Array Controller, it is necessary to check the slot numbers of drives before you use
configuration wizard, rebuild feature or reconstruction feature.
• The slot numbers are not displayed while executing the features and you need to select
physical drive numbers of drives. Note that physical drive numbers which are displayed
in the left panel of physical view may be different from the actual slot numbers of drives.
You can see the slot numbers in the Properties view of drives on MSM such as the
following copy of the screen.
• The slot numbers are started from 0, although those printed on the unit are started from
1.
If you continue to boot the system, the battery-backed cache
Please contact technical support for assistance.