When Customers Should Use Raid Adg; Summary - Compaq 124708-001 - ProLiant Cluster - 1850 White Paper

New Advanced RAID Level for Today's Larger Storage Capacities:

When customers should use RAID ADG

Advanced Data Guarding is ideal for applications requiring larger storage volumes. RAID ADG
is best implemented when customers have the following needs:
For greater capacity utilization
For mission-critical data
When large logical drives are required
When better capacity utilization than RAID 1 is needed
When higher fault tolerance than RAID 1 or RAID 5 is necessary
In addition, customers can migrate from their existing RAID levels to RAID ADG and from
RAID ADG to other RAID levels as well.
Note: If a RAID volume does not have available capacity equal to one disk drive, it may require adding a disk drive
and expanding the RAID volume. Refer to the Compaq User Manual for more detailed information.

Summary

With RAID ADG, the new Compaq exclusive and advanced RAID level, customers are provided
with a capacity utilization that is ideal for large capacity logical drives. Every Compaq server
customer implementing RAID volumes with 8 or more hard disk drives should consider this new
RAID level. This innovative Compaq solution for today's large storage capacities is not
provided by any other competitor.
Note: RAID ADG is standard with the Compaq Smart Array 5304/128 and will be sold as an option with Smart Array
models 5302/64 and 5302/32. RAID ADG will be available in 1Q/2001.
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