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Full Discussion: Hardware RAID
Operating Systems Solaris Hardware RAID Post 302157175 by xramm on Thursday 10th of January 2008 09:42:05 AM
Old 01-10-2008
Lightbulb

Quote:
Originally Posted by jess_t03
I don't understood why on SPARC-Platforms have not present RAID-Controller ? Sorry for my bad english, but it's crazy always setup software RAID !!! I whanna Hardware RAID and when i can find solution ?
Some experts say ; HW RAID is better in general reliability than SW RAID after a reboot sometime SW RAID machines had problem in spite of that RAID 1 mirror is most reliable in category as its Performance is best during failure. Some notes about performance:

Striping generally has the best performance, but it offers no data
protection. For write-intensive applications, RAID 1 performs better
than RAID 5.
l RAID-1 and RAID-5 volumes both increase data availability.
Mirroring improves random read performance.
l RAID-5 volumes have a lower hardware cost than RAID-1 volumes,
while RAID-0 volumes have no additional hardware cost.
 

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RAIDFILE.CONF(5)						    Box Backup							  RAIDFILE.CONF(5)

NAME
raidfile.conf - Userland RAID for Box Backup SYNOPSIS
/etc/box/raidfile.conf DESCRIPTION
The raidfile.conf is usually generated by raidfile-config(8) but may be manually edited if the store locations move or if more than one disc set is required. discX Specifies a set of discs. SetNumber The set number of the RAID disc, referenced by each account. BlockSize The block size of the file system (usually 2048). Under BSD with FFS, set this to your file system's fragment size (most likely an 8th of the block size). Dir0 The first directory in the RAID array. Dir1 The second directory in the RAID array. If you do not wish to use the built-in RAID functionality, this field should be set to the same as Dir0. You should not use the built-in RAID if you have a hardware RAID solution or if you're using another type of software RAID (like md on Linux). Dir2 The third directory in the RAID array. The same notes that apply to Dir2 also apply to Dir3. FILES
/etc/box/raidfile.conf SEE ALSO
raidfile-config(8), bbstored.conf(5) AUTHORS
Ben Summers Per Thomsen James O'Gorman Box Backup 0.11 10/28/2011 RAIDFILE.CONF(5)
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