DELL MD3220 사용자 설명서

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Configuration: Premium Feature—Upgrading to High-Performance-Tier
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Configuration: Premium Feature—
Upgrading to High-Performance-
Tier 
The High Performance Tier premium feature on a MD3200 Series array 
increases the performance of the system beyond that of a MD3200 Series 
array operating at the standard performance level.
If this feature is ordered, a Premium Feature Activation card is placed in the 
box with the storage array. After reading the information below, follow the 
directions on the card to obtain a key file and to enable the feature.
 
CAUTION: 
Loss of data access – The storage array automatically restarts when 
the High-Performance-Tier feature is enabled or disabled. During the restart data 
is unavailable. Data availability is restored when the array restarts. 
To upgrade from a standard-performance-tier storage array to a high-
performance-tier storage array, you enable the high-performance-tier 
premium feature, using the Dell™ PowerVault Modular Disk Storage 
Management (MDSM) software.
When the high performance tier feature is enabled or disabled the array 
restarts. During this time data access and management access to the 
controller will be temporarily lost. 
It is recommended that all I/O to the array be stopped before this feature is 
enabled or disabled. 
While the array is restarting, the state of the array in the MDSM application 
may change from Optimal to Unresponsive. When the restart completes the 
status will return to Optimal
When the array status returns to Optimal, I/O to the array can be restarted. 
book.book  Page 165  Monday, June 21, 2010  11:00 AM