HighPoint RocketRAID 2711 Kurulum Kılavuzu - Sayfa 2

Adaptör HighPoint RocketRAID 2711 için çevrimiçi göz atın veya pdf Kurulum Kılavuzu indirin. HighPoint RocketRAID 2711 19 sayfaları. With ej6172 device board and data raid

HighPoint RocketRAID 2711 Kurulum Kılavuzu
 
Part   1   –   W hat   i s   a   D ata   R AID?  
A   D ata   R AID   i s   s etting   u p   a   R AID   a rray   ( 0,   1 ,   5 ,   6 ,   1 0   o r   J BOD)   o n   t he   R ocketRAID   2 711   s eries  
controller.    
   
RAID   a rrays   o ffers   a dvantages   o f   p erformance   a nd   p rotection   w ith   r edundancy.
RAID   B asics?    
RAID   s tands   f or   R edundant   A rray   o f   I ndependent   D rives.   T his   m eans   t aking   m ultiple   m atching   d rives  
and   a rranging   t hem   t ogether   t o   a chieve   l arge   s torage   s pace,   s peed,   d ata   p rotection,   o r   a ny  
combination   o f   t he   t hree.   T he   R ocketRAID   2 711   s eries   c ontroller   s upports   t he   f ollowing   R AID   t ypes:  
RAID   0   " Stripe"  
Speed:   D ata   i s   a lternated   a cross   t wo   o r   m ore   d rives   t o   g ain   s peed   b y   e ssentially   d istributing   t he  
workload.
  
Protection:   N o   b uilt-­‐in   p rotection.  
Capacity:   U sable   s pace   i s   t he   c ombined   c apacity   o f   a ll   t he   d rives.  
 
RAID   1   " Mirror"  
Speed:   N o   s peed   b enefits   g ained.   
  
Protection:   O ne   d rive   c an   f ail   a nd   a ll   d ata   w ill   s till   b e   a ccessible.    
Capacity:   O ne   d rive   w orth   o f   u sable   s pace   o ut   o f   t he   t wo   t otal   d rives   u sed.  
 
JBOD   ( Independent   D rive   M odes)  
Speed:   N o   s ignificant   s peed   g ains.   
  
Protection:   N o   b uilt-­‐in   d ata   p rotection.   
  
Capacity:   I n   J BOD   m ode,   t he   c apacities   a re   c ombined.   W hen   s et   u p   a s   i ndependent   d rives,   e ach   d rive  
presents   i ts   s tated   c apacity   f or   u se.  
 
RAID   5   " Stripe   &   P rotection"  
Speed:   D ata   i s   s triped   l ike   i n   a   R AID   0 ,   s o   s ignificant   s peed   g ains   a re   s een.   
  
Protection:   U tilizes   m athematical   p arity   t o   a chieve   d ata   p rotection   w hile   t aking   u p   a   m inimum   o f  
space.   O ne   d rive   c an   f ail   a nd   a ll   d ata   w ill   s till   b e   a ccessible.  
Capacity:   A ll   b ut   o ne   d rive   w orth   o f   c apacity   i s   u sable.   M inimum   t hree   d rives   a re   n eeded   t o   c reate   a  
RAID   5   a rray.   I n   a   t hree   d rive   R AID   5   a rray,   t here   i s   t wo   d rives   w orth   o f   u sable   s pace.  
 
RAID   6   " Stripe   &   D ouble   P rotection"  
Speed:   D ata   i s   s triped   l ike   i n   a   R AID   0 ,   s o   s ignificant   s peed   g ains   a re   s een.   
  
Protection:   U tilizes   m athematical   d ual   p arity   t o   a chieve   d ata   p rotection   w hile   t aking   u p   a   m inimum  
of   s pace.   T wo   d rives   c an   f ail   a nd   a ll   d ata   w ill   s till   b e   a ccessible.