D-Link DSN-1100-10 - xStack Storage Area Network Array Hard Drive Guia do Utilizador descarregar pdf (Página 112)

112 Chapter 5 Configuring the XStack Storage

Figure 5-47. Battery Policy Dialog Box

3. Select the appropriate setting that the XStack Storage unit should use if the battery fails. The

choices are:

– Ignore the status of the battery and do nothing. Use this setting if you will be operating

the XStack Storage from AC power with an uninterruptible power supply.

– Stop buffering I/O in cache, and directly write data to disk. Use this setting if you want

to write to disk all I/O buffered in cache memory in the event of a battery failure.

If the XStack Storage unit is operating from an uninterruptible power supply

(UPS) and the UPS fails, there may not be sufficient time to write all the

buffered I/O to disk. This can result In lost or unintelligible data.

– Prevent any reads from or writes to volumes. This setting prevents all read and write

operations from occurring if the battery fails.

4. Click OK.

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D-Link DSN-1100-10 - xStack Storage Area Network Array Hard Drive Guia do Utilizador Página 112