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NOTE: When a ‘delete’ request reaches the operating system driver, the driver stops all the running input/output (I/O) for other logical drives and processes the delete request first. Normal read/write operation starts after the delete request is completed.

NOTE: Drive size expansion is not possible, even though you can use non-contiguous free space to create a new logical drive.

NOTE: You cannot move an existing logical drive to another area to protect it from defragmentation caused by random deletion.

After you delete a logical drive, you can create a new one. You can use the configuration utilities to create the next logical drive from the non- contiguous free space (‘holes’), and from the newly created arrays. The configuration utility provides a list of configurable arrays where there is a space to configure.

NOTICE: The deletion of the logical drive can fail under certain conditions. You cannot delete a logical drive during a reconstruction. Deletion can fail during a rebuild, initialization or check consistency of a logical drive, if that drive has a higher logical drive number than the drive you want to delete.

Configuration Module

The main benefit of random array deletion on the configuration module is that you are not restricted to sequential or contiguous logical drives when you create logical drives. You can use non-contiguous segments to create logical drives.

The random deletion of logical drives creates non-contiguous segments in the configuration, which prevents the sequential creation of the next logical drive. You can create logical drives from these non-contiguous segments. To create such a logical drive, you can span these segments, as long as they have the same number of physical drives.

You can still create sequential logical drives, without using the non- contiguous segments. The utilities provide information about sequential segments, non-contiguous segments and physical drives that have not been configured. You can use this information when you create logical drives.

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Configuring PERC 3

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