VessRAID 1740s, 1840s Product Manual
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Unsaved Data in the Controller Cache
The Dirty Cache LED informs you that there is data in the cache that has not
been saved to non-volatile memory. Such data is sometimes called “dirty,” not to
suggest it is corrupted in some way but because it has not been saved to a disk
drive.
Figure 19.Dirty Cache LED
If there is unsaved data in the controller’s cache, the Dirty Cache LED shines
amber. During this time, do NOT power down the VessRAID. Wait until the LED
will goes dark.
Dirty Cache LED