Promise Technology EX4650 Instrukcja Użytkownika Strona 174

  • Pobierz
  • Dodaj do moich podręczników
  • Drukuj
  • Strona
    / 232
  • Spis treści
  • BOOKMARKI
  • Oceniono. / 5. Na podstawie oceny klientów
Przeglądanie stron 173
SuperTrak EX Series User Manual
162
RAID 50 – Striped Distributed Parity
RAID 50 combines both RAID 5 and RAID 0 features. Data is striped across
physical drives as in RAID 0, and it uses distributed parity as in RAID 5. RAID 50
provides data reliability, good overall performance, and supports larger volume
sizes.
Figure 7. RAID 50 is a combination of RAID 5 and RAID 0
The data capacity RAID 50 logical drive equals the capacity of the smallest
physical drive times the number of physical drives, minus two.
RAID 50 also provides very high reliability because data is still available even if
multiple physical drives fail (one in each axle). The greater the number of axles,
the greater the number of physical drives that can fail without the RAID 50 logical
drive going offline.
Component Minimum Maximum
Number of Axles 2 16
Physical Drives per Axle 3 16
Physical Drives per Logical Drive 6 256
Distributed Parity
Physical Drives
Data
Stripe
Axle 1
Axle 2
Przeglądanie stron 173
1 2 ... 169 170 171 172 173 174 175 176 177 178 179 ... 231 232

Komentarze do niniejszej Instrukcji

Brak uwag