Raid Monitoring [D Model Only]; Table 2-5 Status Of The Raid And State Of The Mcall Contact - Hitachi HF-W7500 40 Manual

2.8 RAID Monitoring
D Model has a RAID1 feature (hereinafter denoted simply as "RAID") generally known as
"mirror disk (mirroring)".
The RAID monitoring function monitors the status of the RAID on this equipment. If there is
any change in the status of the RAID, this function notifies a user or an application using the
following methods.
(1) Hardware status window
(2) Event notification
(3) Popup notification
(4) Outputs on the status display digital LEDs
(5) Remote notification
(6) Alarm lamp
(7) The hfwDiskStat, hfwRaidStat, and RaidStat functions in the RAS library
(8) RAID configuration control command (raidctrl)
For details about (1) to (5), see "CHAPTER 4 CHECKING THE HARDWARE STATUS".
For details about (7), see "6.1.9 Get function for the drive condition (hfwDiskStat)", "6.1.10
Get function for the RAID status (hfwRaidStat, RaidStat) [D Model only]". For details about
(8), see "5.3 RAID Configuration Control Command (raidctrl) [D Model only]".
If you use the MCALL contact of the RAS external contact interface, the external hardware
connected to the RAS external contact interface can detect malfunctions of this equipment.
The following table shows how the state of the MCALL contact changes.

Table 2-5 Status of the RAID and State of the MCALL Contact

Normal
Degraded(*), Unknown, Fail
(*) This is also applicable when media errors are configured to be reported.
The alarm indicator (as well as the MCALL contact of the RAS external contact interface) is
not dedicated just to monitoring the status of the RAID. Therefore, it will not be turned off
(opened) when the status of the RAID recovers as long as malfunctions are detected in other
monitored items.
[D Model only]
RAID status
2. ITEMS MONITORED BY THE RAS FEATURE
MCALL contact
Open
Closed
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