Getting Started With the Nytro XD Solution : Prerequisites for Configuring the Nytro XD Solution

Prerequisites for Configuring the Nytro XD Solution

The following prerequisites are common to both cache devices and VDs for a device to be configured in the Nytro XD solution:

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The cache device or any of its sub-nodes are not mounted.

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The cache device or sub node is not used as an active system device, on OS installation drive.

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The cache device or the underlying partition is not used as an active system device,–root, swap, boot.

Nytro XD qualifies the cache devices if these prerequisites are fulfilled:

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The cache device must be a Nytro WarpDrive card.

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The cache device must not be a root or boot device.

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The cache device must not be partitioned.

The VDs qualify for caching if these conditions are fulfilled:

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The VD is an SCSI device.

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When the VDs are using a SAN, they cannot be shared between multiple servers where the data can be modified by all servers.

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The VD must not be removable (USB, CDROM, or so on).

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The VD is not a Nytro WarpDrive card.

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The individual partitions cannot be added as target devices (on Windows). The VD must be a parent node (DISK0) and not a partition (C:, D:)

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The individual partitions cannot be added as target devices (on Linux). The VD must be an unpartitioned device (/dev/sdX) and not a partition (/dev/sdX1).

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The VD or any of the underlying partitions are not under LVM.