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Understanding Server Features 15
Support for RAID Storage Configurations
Using the on-board SAS controller, you can set up hardware RAID 1 (mirroring) and
hardware RAID 0 (striping) configurations for any pair of internal hard drives,
providing a high-performance solution for hard drive mirroring.
Additional RAID levels are supported by installing the StorageTek SAS HBA
(internal PCIe card). This option requires a different set of internal cables.
By attaching one or more external storage devices to the SPARC Enterprise T5120 and
T5220 servers, you can use a redundant array of independent drives (RAID) software
application such as Solstice DiskSuite or VERITAS Volume Manager
1
to configure
system drive storage in a variety of different RAID levels.
Related Information
■ SPARC Enterprise T5120 and T5220 Servers Product Notes
■ SPARC Enterprise T5120 and T5220 Servers Administration Guide
■ SPARC Enterprise T5120 and T5220 Servers Service Manual
■ Solaris OS
documentation (http://docs.sun.com/app/docs/prod/solaris)
■ Documentation for your hardware
Error Correction and Parity Checking
The UltraSPARC T2 multicore processor provides parity protection on its internal
cache memories, including tag parity and data parity on the D-cache and I-cache. The
internal L2 cache has parity protection on the tags, and ECC protection on the data.
Related Information
■ SPARC Enterprise T5120 and T5220 Servers Product Notes
■ SPARC Enterprise T5120 and T5220 Servers Administration Guide
■ SPARC Enterprise T5120 and T5220 Servers Service Manual
1. SoftwareRAIDapplicationssuchasVERITASVolume Managerarenotincludedwiththisserver.Youmust
obtainandlicensethemseparately.