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This article provides information on RAID Array Degradation on some OptiPlex, Vostro and Precision Desktop Systems.

Table of Contents:

1. RAID Array Degradation
2. Resolution

1. RAID Array Degradation

Users may report on some Optiplex, Vostro Desktop and Precision Workstation systems their Hard Drives can go offline when configured as a RAID 01 or RAID 10 resulting in array degradation. This issue has been reported on systems running Windows XP, Vista, and Windows 7 using the onboard Intel storage controller. This can be seen using Intel Matrix Storage Manager(IMSM) or Intel Rapid Storage Technology (IRST) driver versions 9.5 and earlier.

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2. Resolution

Please refer to the Dell Support Site and update the Intel Rapid Storage driver to the latest version. In most cases, the array is still bootable and can be rebuilt using the IMSM/IRST console by right clicking on the offline drive and selecting "mark as normal".

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