硬盘

为防范服务器意外宕机导致数据丢失，网络工程师将核心数据库镜像实时备份至外部加密硬盘。

wèi fáng fàn fú wù qì yì wài dàng jī dǎo zhì shù jù diū shī, wǎng luò gōng chéng shī jiāng hé xīn shù jù kù jìng xiàng shí shí bèi fèn zhì wài bù jiā mì yìng pán.

To prevent data loss caused by unexpected server downtime, network engineers back up the core database image to an external encrypted hard drive in real time.