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VessRAID Setup - Promise Technology, Inc.

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307<br />

Chapter 9: Troubleshooting<br />

You can set the <strong>VessRAID</strong> to migrate disk arrays under Non-Volatile Random<br />

Access Memory (NVRAM), a much faster process because it writes data to the<br />

memory in the controller. However, if a physical drive or the controller fails during<br />

migration, the logical drives will go offline and you will lose data. See “<strong>Inc</strong>omplete<br />

Array” on page 305.<br />

Because the setting for migration under NVRAM requires special access, most<br />

users will not encounter this condition.<br />

Physical Drive Fails during Transport<br />

Transport is the action of moving the physical drives of a disk array:<br />

• To different slots in the same <strong>VessRAID</strong> enclosure<br />

• From one <strong>VessRAID</strong> enclosure to another<br />

If a physical drive fails during a transport, or you do not move all of the physical<br />

drives to their new locations, WebPAM PROe will display an incomplete array.<br />

See “<strong>Inc</strong>omplete Array” on page 305.

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