Symptom
The extension unit is not rec- ognized (even when con- necting the extension unit).
The hard disk drive is not recognized.
The HDD status indicator does not light.
The HDD unit is not recog- nized even though the HDD status indicator is lit.
The HDD indicator is being lit red/blinking red.
Cannot recover data after replacing the HDD units when operating in the RAID 5/RAID 6 mode.
The HDD status indicator lights orange and red alter- nately even when any recording or playback is not being performed.
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Check item/Remedy | Ref. Page | |
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• Was the power of the extension unit turned on before turning |
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on the power of the recorder? Reboot the system and turn on | – | |
the power of the extension unit first. |
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• When using a circuit breaker or equivalent device to turn on/off |
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the power of the whole system at once, make sure that all | – | |
devices are connected to the same power source. |
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• When using an UPS (uninterruptible power supply), connect all | – | |
devices to the same UPS. | ||
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• Make sure that the HDD unit is inserted all the way into the | 52 | |
HDD slot. | ||
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• The hard disk drive is faulty. | – | |
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• Add the HDD unit to the system again. |
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• Make sure that the HDD units are installed in order from HDD1 |
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to HDD4. | 52 | |
Install the HDD units one by one in order starting from HDD1. |
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•The respective hard disk drive is faulty in the RAID 5 or RAID 6 mode.
In the RAID5 mode, the indicator respective to the HDD that
failed first will light red and the indicators for the other failed | 126 | |
HDD will blink red. In the RAID 6 mode, the HDD access indi- |
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cators corresponding to the first and second faulty disks will |
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light and blinks for the third and subsequent faulty disks. |
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• Make sure that the HDD unit is inserted all the way into the | 52 | |
HDD slot. | ||
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• The hard disk drive on which there is data to be recovered is | – | |
faulty. | ||
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•Check if the capacity of the new hard disk drive is smaller than the original one's.
If different models are used together even when the capacities
of them are the same, the available capacity may be a few per- | 128 |
cent smaller. When using multiple hard disk drives, use the |
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same model. Replacing to a hard disk drive whose capacity is |
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larger than the original one's is also available. |
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•Make sure that recovery of data in the RAID 5/RAID 6 mode is not being processed.
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