B-4Adaptec Storage Manager Pro User’s GuideArray Selection ExamplesThe examples in this section show you how to use the arrayselection criteria to determine the optimum array type for specificnetworking environments. You may find these examples useful indetermining the array type that best meets your needs. SeeUnderstanding the Array Selection Criteria on page B-8.Generally, most users who require fault tolerance prefer RAID 5configurations because of the reduced cost overhead. Users who donot require fault tolerance usually use the stripe set.Need orSystem Use Definition Suggested ConfigurationMission-critical dataUsers must have access todata, and fault tolerance isthe highest priority.•Stripe set of mirror sets(RAID 0/1) (highestwrite performance)•Stripe set of RAID 5sets (RAID 0/5)•Mirror set (RAID 1)•RAID 5 setApplicationserverUsers access applicationsfrom the server, but theystore their data on their localdisk drives; requires highsequential-readperformance.•Stripe set of mirror sets(RAID 0/1)•Mirror set (RAID 1)•Stripe set of RAID 5sets (RAID 0/5)•RAID 5 setDeveloperenvironmentUsers transfer data from theserver to their local diskdrives, modify the data, andreturn it to the server;requires high random-readand -write performance andfault tolerance.•Stripe set of RAID 5sets (RAID 0/5)•Mirror set (RAID 1)•RAID 5 setMail server Users log in to the server toread their mail, and theserver transfers the mail filesto the user’s local disk drive;requires high random-readand -write performance andfault tolerance.•Stripe set of RAID 5sets (RAID 0/5)•Mirror set (RAID 1)•RAID 5 set
