Hp Dynamic Smart Array Controllers Manuale Utente Scaricare il pdf (Pagina 7)

Enabling and configuring the controller 7

Installing the HP Smart Array SAS License Key

When installed and activated on the B320i controller, the HP Smart Array SAS License Key provides support

for SAS hard drives.

To enter the license key, use ACU ("Array Configuration Utility" on page 30).

After the license key is added, a Validating License Key screen appears, and you will receive confirmation

that the license key has been successfully activated. SAS drives are now enabled. Use ACU to configure the

drives.

Configuring an array

For the most efficient use of drive space, all drives within an array should have approximately the same

capacity. Each configuration utility treats every physical drive in an array as if it has the same capacity as the

smallest drive in the array. Any excess capacity of a particular drive cannot be used in the array. Therefore,

the capacity is unavailable for data storage.

The more physical drives that are in an array, the greater the probability that the array will experience a drive

failure during any given period. To reduce the risk of data loss that might occur when a drive fails, configure

all logical drives in an array with a suitable fault-tolerance (RAID) method.

To configure an array, use Intelligent Provisioning (on page 31) to enter the Array Configuration Utility (on

page 30). For more information about using ACU to configure an array, see the Configuring Arrays on HP

Smart Array Controllers Reference Guide on the HP website (http://www.hp.com/go/bizsupport).

Setting the controller read cache

HP Dynamic Smart Array RAID controllers can use a configurable amount of main system memory for read

caching. The default amount of memory used is 64 MB. However, this value can be set to 0, 64, or 128 MB.

Use ACU ("Array Configuration Utility" on page 30) in offline mode to configure the amount of read cache.

For more information, see the Configuring Arrays of HP Smart Array Controllers Reference Guide on the HP

website (http://www.hp.com/go/bizsupport).

Upgrading to 512 MB FBWC

The 512 MB FBWC option provides RAID 5 capabilities for HP Dynamic Smart Array B120i and B320i RAID

controllers.

For more information, see the server QuickSpecs on the HP website

(http://h18000.www1.hp.com/products/quickspecs/ProductBulletin.html). To obtain the option, contact

an HP authorized reseller.

After the option is installed, use ACU ("Array Configuration Utility" on page 30) to configure RAID 5. For

more information, see the HP Smart Array Controllers for HP ProLiant Servers User Guide on the HP website

(http://www.hp.com/go/bizsupport).

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Hp Dynamic Smart Array Controllers Manuale Utente Pagina 7