Managing the Cache Devices

> Managing the Cache Devices

> You can add or remove the cache devices to or from a cache group anytime after the first-time configuration using the Manage option on the MegaRAID Storage Manager GUI. You can add cache devices into or remove cache devices from a cache group. To be able to add the cache devices, the total cache capacity must not exceed the maximum supported cache size, and the system must be able to allocate the memory resources required to manage an additional cache device.

> 1. | Select Manage Cache Devices.

> Figure 31. Manage Cache Devices

> 2. | Select the required cache device from the Cache devices box into the Cache Group box to add or select the required cache device from the Cache Group box to remove as shown in the preceding figure.

> 3. | Click Add > or < Remove.

> 4. | Click Save to confirm.

> If you remove all of the cache devices from the cache group and click Finish, the following warning message appears; this message indicates that removing all of the cache devices deletes the cache group. This warning message indicates that the cache group would be deleted and any cached VDs would no longer be cached.

> If all the cache devices are removed from the cache group, the following message appears.

> Figure 32. Confirm Delete Cache Group

> NOTE The Nytro XD solution configuration data stored on the cache device would be erased and the memory resources allocated to the cache group would be freed.

> After you click Add on the dialog, if the system detects any existing data (master boot record, file system, or other known data) on the selected cache devices, the following dialog appears.

> Figure 33. Data Detected

> | The Nytro XD solution configuration data stored on the cache device would be erased and the memory resources allocated to the cache group would be freed.

> | The cache device might contain foreign configuration if the device was used for caching on a different machine. While adding a cache device, if the device contains a foreign configuration, a warning message is displayed as shown in the preceding figure.

> | Click No to continue to add the cached VDs.

DB15-000917-02-January 2013
Copyright© 2013 by LSI Corporation. All rights reserved.