Hitachi 65 - Recovering from failure

10. RAID1
10-6
10.4 Recovering from failure
10.4.1 Detecting a failure
When failure is detected in the RAID1, the following actions are executed by this equipment.
Table 10-1 Action list of when the RAID detected failure
No.
Action
Cause
1
The HDD status lamp (Red) turns on.
Drive failure
(Either one drive or both
drives)
2
The Digital LEDs for Status indication indicate an output message.
(See “9.6.2 Displaying a hardware status code” and “HF-W7500
Model 65/60 RAS FEATURES MANUAL (WIN-63-0101)”.)
3
An alarm lamp (red) turns on.
Failure on one drive
4
The MCALL external contact (maintenance personnel call signal) is
closed. (See “5.9.2 External control specifications”.)
5
Data is recorded in the event log.
(See “9.4 Event Log”.)
6
The Drive status of the RAID1 system is displayed in the Hardware
status window.
(See “HF-W7500 Model 65/60 RAS FEATURES MANUAL (WIN-
63-0101)”.)
The following sections describe how to recover from each type of failure and how to handle
problems that occur during recovery work.