Adaptec 3210S User Guide - Page 134
Array Selection Examples, Need or, System Use, Definition, Suggested Configuration
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Adaptec Storage Manager Pro User's Guide Array Selection Examples The examples in this section show you how to use the array selection criteria to determine the optimum array type for specific networking environments. You may find these examples useful in determining the array type that best meets your needs. See Understanding the Array Selection Criteria on page B-8. Generally, most users who require fault tolerance prefer RAID 5 configurations because of the reduced cost overhead. Users who do not require fault tolerance usually use the stripe set. Need or System Use Missioncritical data Application server Developer environment Mail server Definition Users must have access to data, and fault tolerance is the highest priority. Users access applications from the server, but they store their data on their local disk drives; requires high sequential-read performance. Users transfer data from the server to their local disk drives, modify the data, and return it to the server; requires high random-read and -write performance and fault tolerance. Users log in to the server to read their mail, and the server transfers the mail files to the user's local disk drive; requires high random-read and -write performance and fault tolerance. Suggested Configuration •Stripe set of mirror sets (RAID 0/1) (highest write performance) •Stripe set of RAID 5 sets (RAID 0/5) •Mirror set (RAID 1) •RAID 5 set •Stripe set of mirror sets (RAID 0/1) •Mirror set (RAID 1) •Stripe set of RAID 5 sets (RAID 0/5) •RAID 5 set •Stripe set of RAID 5 sets (RAID 0/5) •Mirror set (RAID 1) •RAID 5 set •Stripe set of RAID 5 sets (RAID 0/5) •Mirror set (RAID 1) •RAID 5 set B-4