Galaxy Metal Gear 65 manual To change the write-back cache setting

Galaxy 65 User Guide

Typically, if your drives are part of an array, you do not want to turn on write-back cache on the drives. The Galaxy 65 Subsystem is already using write-back cache to improve performance. Turning on write- back cache on the disk drive may improve performance in some cases, depending on the type of array and how you are using it.

Any disk drives with write-back cache enabled should be connected to an Uninterruptible power supply (UPS) in case of power failure. If the drives are not on a UPS and power is lost during disk writes, the array will lose any data in the disk’s write-back cache.

Caution We recommend that you disable disk write-back cache. Some drives delete their write-back cache if they encounter an internal error, resulting in lost data.

To change the write-back cache setting:

1From the System Menu, select Configuration Menu and press Enter. The Configuration Menu displays.

Select Disk Configuration and press Enter. The Disk Configuration screen displays.

2Select Write-back Cache and press Enter.

The Write-back Cache screen displays. The current setting is marked with an * next to it.

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