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3.5-Inch Fibre Channel Solid State Drive Product Manual Rev. 1.0 65
OPERATIONAL FAULT CODES
The following codes indicate that a fault has been detected during drive operation. The drive will
remain operational despite the fault. The drive should be replaced at the earliest possible opportunity.
Operational fault codes are indicated as a series of flashes. The fault light will illuminate for 1 second,
then off for 1 second, followed by a 10 second off delay. The number of 1 second flashes between
each 10 second delay period are used to indicate the different fault conditions: 5, 7 or 9 flashes.
Table 38. Operational Fault Codes
Code Condition Description
5 Flashes Power Backup Device Faulty The power backup circuit has failed. The power backup
circuit supplies power to the drive for a short period in the
event of a power failure. The backup power allows the
firmware to ensure that any active writes are completed. It
also allows information to be saved so that the drive
becomes ready promptly (< 30 seconds) when power is
restored. If this fault code is active and power is
unexpectedly lost, the drive may require several minutes to
come ready when the power is restored. If this occurs, only
the data blocks that were most recently written by the host
will be lost. If those same data blocks are read when power
is restored, the prior contents (prior to the lost write) will be
returned. No data will be permanently lost. When this
fault code is active the drive will save all information and
prepare for power loss if a SYNCHRONIZE CACHE (10)
command (Opcode 0x35) is received via the host SCSI
interface. Most operating systems (Windows, Solaris,
Linux, etc.) will issue this command automatically when
shut down by the user. This will alleviate the potential
problems associated with this fault condition.
7 Flashes NAND Flash Write Protect Error A write protect error was returned when the unit attempted
to write to the flash media. The most likely cause is a faulty
connection or voltage converter. If this error occurs
continuously then access from the host machine will be
locked out.
9 Flashes NAND Busy Error The BUSY pin from a NAND flash chip was asserted for too
long. The most likely cause is a faulty connection. If this
error occurs continuously then access from the host
machine will be locked out.