일부 UEFI BIOS를 기본으로 사용하는 ProLiant Gen8/Gen9 서버를 Legacy Boot mode로 설정하는 경우,
OS 재부팅 시마다, 설정된 시간이 초기화되는 현상이 나타날 수 있다.
이는 알려진 이슈로, 향 후 출시될 BIOS에서 수정될 예정이며, 임시 조치로 아래와 같이 적용하여 해소할 수 있다.
Action Plan 1. - Windows
What : OS Time 설정
When : ASAP
To do.
1) UEFI/RBSU > Date and Time > Timezone > [UTC-00:00, Greenwich Mean Time, Dublin, London]
2) WS2012 R2 STD Boot 진행 후 Timezone (Asia/Seoul), date, time 을 설정
3) Registry 편집
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation\
Name : RealTimeIsUniversal
Type : DWORD (32-bit) 값
Value: '1'
4) NTP 구성/설정
Advisory: (Revision) Microsoft Windows Server - HP ProLiant Gen9-Series Servers and the HP ProLiant DL580 Gen8 Server May Experience an Offset in the System Time After Rebooting in Legacy Boot Mode
http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04557232
When the system time or time zone are changed in the ROM-Based Setup Utility (RBSU) on an HP ProLiant Gen9-series server or HP ProLiant DL580 Gen8 Server running a Microsoft Windows Server Operating System (OS), upon reboot, the system time may default to the OS time-zone offset.
Note: Booting in UEFI boot mode does not cause an offset in the System Time.
Advisory: Linux - HP ProLiant Gen9-Series Servers and the HP ProLiant DL580 Gen8 Server May Experience an Offset in the System Time After Rebooting in Legacy Boot Mode
http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04565705
1.Set the local time zone by typing a command similar to the following:
ln -sf /usr/share/zoneinfo/US/Denver /etc/localtime
2.Set the date and time by typing a command similar to the following:
date - - set "8 OCT 2014 10:51:30 MST"
3.Verify the date was set by typing the following command:
date
4.Check the hardware clock by typing the following command:
hwclock
5.If the hardware clock is different, set the hardware clock to match the system time by typing the following command:
hwclock -systohc
6.Verify the time and hardware clock match by typing the following commands:
date
hwclock
