Promise Technology EX4650 Instrukcja Użytkownika Strona 181

  • Pobierz
  • Dodaj do moich podręczników
  • Drukuj
  • Strona
    / 232
  • Spis treści
  • BOOKMARKI
  • Oceniono. / 5. Na podstawie oceny klientów
Przeglądanie stron 180
Chapter 6: Technology Background
169
RAID 1E
Recommended Applications for RAID 1E
Imaging applications
Database servers
General fileserver
RAID 5
Recommended applications for RAID 5:
File and Application servers
WWW, E-mail, and News servers
Intranet servers
Advantages Disadvantages
Implemented as a mirrored logical
drive whose segments are RAID 0
logical drives
High I/O rates are achieved thanks to
multiple stripe segments
Can use an odd number of physical
drives
Very high physical drive overhead –
uses only 50% of total capacity
Advantages Disadvantages
High Read data transaction rate
Medium Write data transaction rate
Good aggregate transfer rate
Most versatile RAID level
Physical drive failure has a medium
impact on throughput
Przeglądanie stron 180
1 2 ... 176 177 178 179 180 181 182 183 184 185 186 ... 231 232

Komentarze do niniejszej Instrukcji

Brak uwag