3.1 Types of Maintenance
3.1 Types of Maintenance
The types of FRU maintenance are classified according to the operation status of the physical partition (PPAR) and the hot/cold status of the SPARC M12-2/M12-2S.
Classification by physical partition (PPAR) operation status
The types of maintenance have the following three classifications according to the operation status of the physical partition (PPAR) to which the FRU requiring maintenance belongs:
- Active maintenance
Maintenance is performed on a FRU while the physical partition to which the FRU belongs is operating. - Inactive maintenance
Maintenance is performed on a FRU while the physical partition to which the FRU belongs is stopped.
Inactive maintenance applies to a system with two or more partitions in a multiple-BB configuration only.
Therefore, regarding the SPARC M12-2 and also the SPARC M12-2S with the 1BB configuration, the type of maintenance performed with the physical partition stopped is system-stopped maintenance, not inactive maintenance. - System-Stopped maintenance
Maintenance is performed with all physical partitions stopped.
Classification by the hot/cold status of the SPARC M12-2/M12-2S
Maintenance is classified into the following two types according to the hot/cold status of the SPARC M12-2/M12-2S that has the FRU requiring maintenance mounted in it:
- Hot maintenance
Maintenance is performed when the SPARC M12-2/M12-2S that has the FRU requiring maintenance mounted in it is in the hot state. - Cold maintenance
Maintenance is performed when the SPARC M12-2/M12-2S that has the FRU requiring maintenance mounted in it is in the cold state.
By combining the above classifications, the six types of maintenance shown in Table 3-2 are available for the SPARC M12-2/M12-2S.
PPAR Operation Status | Hot/Cold Status of SPARC M12 Chassis With Mounted FRU Requiring Maintenance |
Type of Maintenance |
---|---|---|
The PPAR to which the FRU requiring maintenance belongs is operating. | Hot | Active/Hot maintenance |
Cold | Active/Cold maintenance | |
The PPAR to which the FRU requiring maintenance belongs is stopped. | Hot | Inactive/Hot maintenance |
Cold | Inactive/Cold maintenance | |
All PPARs in the system are stopped. | Hot | System-Stopped/Hot maintenance |
Cold | System-Stopped/Cold maintenance |
Use the maintenance menu when performing maintenance work.
However, system-stopped/cold maintenance has the following two types of maintenance work:
However, system-stopped/cold maintenance has the following two types of maintenance work:
- Maintenance using the maintenance menu when only the SPARC M12-2S requiring maintenance is in the cold state
- Maintenance without using the maintenance menu when every SPARC M12-2/M12-2S is in the cold state
Table 3-3 lists the characteristics of each type of maintenance viewed from three aspects: system availability, the time required for maintenance, and the difficulty level of maintenance work.
Type of Maintenance | System Availability | Time Required for Maintenance | Difficulty Level of Maintenance Work |
---|---|---|---|
Active/Hot maintenance | Higher | Shorter | Higher |
Active/Cold maintenance | | | | | | |
Inactive/Hot maintenance | | | | | | |
Inactive/Cold maintenance | | | | | | |
System-Stopped/Hot maintenance | | | | | | |
System-Stopped/Cold maintenance | Lower | Longer | Lower |
Table 3-4 shows the applicability of each type of maintenance according to the model and system configuration.
-: Not applicable |
||||||
---|---|---|---|---|---|---|
Model or Configuration | Active Maintenance | Inactive Maintenance | System-Stopped Maintenance | |||
Hot | Cold | Hot | Cold | Hot | Cold | |
SPARC M12-2 | OK | - | - | - | OK | OK |
SPARC M12-2S (1 BB configuration) | OK | - | - | - | OK | OK |
SPARC M12-2S (multiple-BB configuration) | OK | OK | OK | OK | OK | OK |
However, the types of maintenance actually applicable are narrowed down depending on the FRU requiring maintenance and the purpose of maintenance (replacement, expansion, or reduction). For details, see the section below corresponding to your model and configuration:
- For the SPARC M12-2
See "3.2 Types of Maintenance Applicable to the SPARC M12-2." - For the SPARC M12-2S in the 1BB configuration
See "3.3 Types of Maintenance Applicable to the SPARC M12-2S (1BB Configuration)." - For the SPARC M12-2S in a multiple-BB configuration
See "3.4 Types of Maintenance Applicable to the SPARC M12-2S (Multiple-BB Configuration)."
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