Chapter 4 Mass Storage Subsystem Configuration 79
About Sun Fire V890 Mass Storage
Features
The FC-AL technology implemented in the Sun Fire V890 mass storage subsystem
significantly enhances the server’s reliability, availability, and serviceability (RAS)
and performance capabilities.
The following table describes Sun Fire V890 mass storage subsystem features that
enhance RAS capabilities.
Features RAS Capabilities
Dual-ported FC-AL disk drives,
dual-loop backplanes, and
multiple FC-AL host adapters
These features provide fault tolerance and high
availability of data. You can implement automatic
failover by configuring up to four independent and
redundant data paths using up to four FC-AL host
adapters and appropriate multipathing software. If a
component in any path fails, the software
automatically detects the failure and switches all data
transfers to an alternate path. For additional details,
see “About Multipathing Software” on page 131.
Support for RAID software Using a software RAID application (like Solstice
DiskSuite), you can ensure high availability of data
through fault tolerance and data redundancy. For more
information, see “About Volume Management
Software” on page 134.
Hot-pluggable disk drives Hot-pluggable disk drives ensure high data
availability and enhanced serviceability. You can
quickly replace a failed disk drive in a powered-on
system, without affecting the rest of the system’s
capabilities. For more information, see “About Internal
Disk Drives” on page 84 and “About Hot-Pluggable
and Hot-Swappable Components” on page 127.
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