User Manual

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Product Manual Technology Background
RAID 10 – MIRRoR + StRIPe
Mirror + Stripe combines both of the RAID 1 and RAID 0 logical drive types. RAID 10 can increase performance
by reading and writing data in parallel or striping, and duplicating the data, or mirroring.
PROMISE implements RAID 10 by creating a data stripe over one pair of disk drives, then mirroring the stripe
over a second pair of disk drives. Some applications refer to this method as RAID 0+1.
Advantages Disadvantages
•
HighReaddatatransactionrate
• MediumWritedatatransactionrate
• Goodaggregatetransferrate
• SafestRAIDlevel,exceptforRAID60
• Highdiskoverhead–equivalentoftwo
drivesusedforparity
• SlightlylowerperformancethanRAID5
Recommended Applications for RAID 6:
•
AccountingandFinancial
• Databaseservers
• Anyapplicationrequiringveryhighavailability
PROMISE RAID 10 starts with a data stripe, then mirrors it
Physical Drives
Data Mirror
Data Stripes