公开(公告)号：US20150339203A1

公开(公告)日：2015-11-26

申请号：US14815611

申请日：2015-07-31

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Lawrence C. BLOUNT ,  Itzhack GOLDBERG ,  Neil SONDHI

IPC: G06F11/20 ,  G06F3/06

CPC classification number: G06F11/327 ,  G06F3/0619 ,  G06F3/0625 ,  G06F3/065 ,  G06F3/0653 ,  G06F3/0679 ,  G06F3/0685 ,  G06F3/0689 ,  G06F11/0727 ,  G06F11/0787 ,  G06F11/079 ,  G06F11/1441 ,  G06F11/2015 ,  G06F11/2069 ,  G06F11/2289 ,  G06F11/3034 ,  G06F11/3037 ,  G06F11/3062 ,  G06F12/0802 ,  G06F12/0804 ,  G06F12/0868 ,  G06F12/16 ,  G06F2201/86 ,  G06F2212/1032 ,  G06F2212/2022 ,  G06F2212/214 ,  G06F2212/221 ,  Y02D10/13

Abstract: Various embodiments of the present invention that include receive a signal indicating a loss of power, start a timer, the timer configured to expire after a specific time period, copy write cache data from the volatile memory to a solid state device (SSD), upon receiving the signal indicating the loss of power to the storage system, configure the SSD as both a read cache and the write cache, perform a health test on the storage system, determine the loss of power as a false alarm if the timer expires and the storage system passes a health test on the storage system upon receiving the signal indicating the loss of power, and upon the timer expiring and the storage system passing the health test, copy the write cache data from the SSD back to the volatile memory.

Abstract translation: 本发明的各种实施例包括接收指示功率损失的信号，启动定时器，配置为在特定时间段之后到期的定时器，将写入高速缓存数据从易失性存储器复制到固态设备（SSD） 接收指示存储系统的电力损失的信号，将SSD配置为读取高速缓存和写入高速缓存，对存储系统执行健康测试，如果定时器到期，则将功率损失确定为虚假警报，并且 存储系统在接收到指示功率损失的信号时，对存储系统进行健康测试，并且在定时器到期并且存储系统通过健康测试时，将来自SSD的写高速缓存数据复制回易失性存储器。