Typical Slot Drive States
ON-LINE - This is the normal operating condition for a drive. There is no failure detected and the drive can be accessed.
ACTIVITY - This LED either turns on when a drive is installed and blinks OFF with activity. This is done so that the single LED can both indicate that the slot is populated as well as the actual activity to the slot.
FAIL - A solid Red LED indicates a drive that has failed, and is no longer operational. The failure would most likely be a result of data that was unsuccessfully read from or written to the drive. This condition will remain until the drive is replaced or rebuilt. One can also manually "Fail" a drive, which is useful in testing, in which case there is nothing physically wrong with the drive. A manually failed drive can be rebuilt and brought back on-line.
REBUILDING - A drive that is part of a RAID-array can be rebuilt, which means that the data on the drive is in the process of being restored from redundant media. If the rebuild succeeds, the drive becomes ON-LINE after the Rebuild. If the rebuild is terminated or fails, the drive will become FAILed.
PREDICTED FAILURE - A drive may successfully write data after a number of failed attempts. This case could be an indication that the storage medium is going bad. An HBA or RAID Controller can query the drive for such problems, and flag the drive with the prediction that it could fail in the near future, although it is currently operational. This can be indicated i.e. by a fast blinking Red LED.
Read more about this topic: MG9077
Famous quotes containing the words typical, slot, drive and/or states:
“It is not however, adulthood itself, but parenthood that forms the glass shroud of memory. For there is an interesting quirk in the memory of women. At 30, women see their adolescence quite clearly. At 30 a woman’s adolescence remains a facet fitting into her current self.... At 40, however, memories of adolescence are blurred. Women of this age look much more to their earlier childhood for memories of themselves and of their mothers. This links up to her typical parenting phase.”
—Terri Apter (20th century)
“Some are able and humane men and some are low-grade individuals with the morals of a goat, the artistic integrity of a slot machine, and the manners of a floorwalker with delusions of grandeur.”
—Raymond Chandler (1888–1959)
“You may drive out nature with a pitchfork, yet she’ll be constantly running back.”
—Horace [Quintus Horatius Flaccus] (65–8 B.C.)
“My only rival, the United States cavalry.”
—James Kevin McGuinness, and John Ford. Mrs. Yorke (Maureen O’Hara)