Recovery From Failure; Detecting A Failure; Table 10-1 Action List Of When The Software Raid Detected Failure - Hitachi HF-W2000 Instruction Manual

10. SOFTWARE RAID1
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 Software RAID detected failure

No.
1 The HDD status lamp (Red) turns on.
2 The Digital LEDs for Status indication indicate an output message.
(See "9.6.1 POST messages" and refer to the HF-W2000 Model
48/45 RAS FEATURES MANUAL.)
3 he alarm lamp (Red) turns on.
4 MCALL external contact (maintenance personnel call signal) is
closed.
(See "5.8.2 External control specifications".)
5 Data is recorded using the event log.
(See Section 9.4, "Event Log".)
6 The HDD status of the RAID1 system is displayed in the Hardware
status window.
(Refer to "4.1.3 Hardware status window" the HF-W2000 Model
48/45 RAS FEATURES MANUAL.)
<Notice>
In this equipment, an operation is performed in the degeneracy of the other HDD
if it detects the failure of a HDD. When launching the first device after the
migration to degenerate behavior, in order to ensure the launch of deterrence from
the failed HDD, you may restart the equipment.
The following part of this section describes how to recover from each type of failure and how
to handle the situation when a problem occurs during recovery work.
Action
10-8
Cause
HDD failure
(Either one or both
HDDs)
HDD failure (Either
drive)