Datoptic RM12-S6.TB - Rackmount Manual do Utilizador descarregar pdf (Página 84)

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APPENDIX

RAID 1

RAID 1 is also known as “disk mirroring”; data written on one

disk drive is simultaneously written to another disk drive. Read

performance will be enhanced if the array controller can, in paral-

lel, access both members of a mirrored pair. During writes, there

will be a minor performance penalty when compared to writing

to a single disk. If one drive fails, all data (and software applica-

tions) are preserved on the other drive. RAID 1 offers extremely

high data reliability, but at the cost of doubling the required data

storage capacity.

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Datoptic RM12-S6.TB - Rackmount Manual do Utilizador Página 84