1. Understanding an Overview of the System
Fan unit
■
Redundant configuration
●
Active replacement
Hardware as whole
■
Protection between CPUs by CRC (*1)
■
Dual power feed
■
Redundant configuration of pump
■
XSCF unit, console path, and path between domain and XSCF:
Redundant configuration (in SPARC M12-2S 2BB configuration
or larger)
■
Redundant configuration of LAN (by Oracle Solaris functions)
■
Redundant configuration of SAS controller
●
Active addition and removal of SPARC M12-2S
Memory
■
Memory mirror
■
Memory patrol
■
Dynamic degradation of memory
(in units of pages)
■
Extended ECC
Built-in storage
■
Redundant configuration
(when RAID (*2) is configured)
●
Active replacement
(when RAID (*2) is configured)
PCIe card
■
Redundant configuration
(when in multipath configuration)
●
Active replacement
*1 Stands for Cyclic Redundancy Check.
The function mainly checks for errors in serial interface access such as reading or writing.
*2 For an HDD, it is when a software RAID/hardware RAID is configured. For an SSD, it is when a software RAID is configured.
Power supply unit
■
Redundant configuration
●
Active replacement
XSCF
■
●
Log collection
■
●
Monitoring function
●
Active replacement
(XSCF unit in SPARC M12-2S
2BB configuration or larger)
Legend:
■
Technology minimizing
shutdowns due to failure
●
Technology minimizing
maintenance shutdowns
NEW
NEW
CPU
■
Dynamic degradation of CPU
(in units of cache ways or CPU cores)
■
●
RAS functions (ECC, parity, retry, etc.)
▍
SPARC M12-2/M12-2S
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