HP Surestore Disk Array 12h System Administrator's Guide for HP-UX, MPE, and W - Page 56
Setting Data Resiliency, Performing Disk Array Maintenance Tasks
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HP-UX Using the ARM Command Line Utilities for HP-UX Performing Disk Array Maintenance Tasks Setting Data Resiliency The data map contents stored in the disk array controller NVRAM is copied to two disks on the array at regular intervals to protect against map loss. The interval at which the disks are updated with recovery map information is controlled using the data resiliency setting. Selecting a data resiliency setting involves making a tradeoff between data protection and performance. The more frequently the recovery maps are updated, the more impact it may have on performance. 56
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Using the ARM Command Line Utilities for HP-UX
Performing Disk Array Maintenance Tasks
56
HP-UX
Setting Data Resiliency
The data map contents stored in the disk array controller NVRAM is copied to two disks on the array at
regular intervals to protect against map loss. The interval at which the disks are updated with recovery map
information is controlled using the data resiliency setting. Selecting a data resiliency setting involves
making a tradeoff between data protection and performance. The more frequently the recovery maps are
updated, the more impact it may have on performance.