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Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide
For example, if the mean time between failures (MTBF) for a single disk is one
hour, then the MTBF for a stripeset that comprises N such disks is l/N hours. As
another example, if a single disk’s MTBF is 150,000 hours (about 17 years), a
stripeset comprising four of these disks would only have an MTBF of slightly
more than four years.
For this reason, you should avoid using a stripeset to store critical data. Stripesets
are more suitable for storing data that can be reproduced easily or whose loss
does not prevent the system from supporting its critical mission.
■ Evenly distribute the members across the device ports to balance load and
provide multiple paths as shown in Figure 4–4.
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