Although both hard drives had failed, both only required very simple fixes. When you need data recovered from a NAS device, you can depend on Gillware’s specialists to do the job right. Gillware’s experts, who have seen hundreds of RAID failures apiece in their careers, recommend stocking NAS devices and servers alike with various brands and models of hard drive in order to avoid this phenomenon. On top of that, because both hard drives suffer through roughly identical workloads, they tend to have similar lifespans as well-resulting in both failing around the same time. These hard drives end up being twins who came off the assembly line within minutes or hours of each other. Many people, when purchasing the hard drives for their NAS or server (or when allowing the NAS device manufacturer to stock the drives) will end up with multiple hard drives all of the same brand and model number because they will source them from the same vendor, from the same manufacturer, at the same time. This isn’t as uncommon of an issue with RAID arrays as it might seem. Our engineers took a look at the two hard disk drives from this failed RAID 0 array and found that both hard drives had failed at around the exact same time. Gillware Data Recovery Case Rating: 10 The Dangers of Identical Twins However, unlike other RAID levels, such as RAID 1 or RAID 5, the array does not duplicate any data so that it can keep running even after one hard drive fails.ĭata Recovery Case Study: Synology DS214+NASĭata Loss Situation: Power light began flashing blue NAS devices with RAID 0 setups are often preferred for users who work with video editing or other tasks which require the streaming of large files because RAID 0 provides a large storage volume with greater read and write speeds. As a result, if one drive fails, the entire array falls offline. However, they offer no redundant fault tolerance. Data is stored in pieces spread across each drive in the array so that data can be written to or read from multiple drives simultaneously. RAID 0 arrays, which combine two or more hard drives into a single volume, offer greater performance and much higher capacity than a single hard drive. The drives had been configured in a RAID 0 array, and so a single hard drive failure was enough to take down the whole volume. Our client in this case study had this exact problem with their own Synology DS214+ NAS device and determined that the fault lay in at least one of the two 3TB WD Red NAS hard drives installed in the device. Recovering Deleted LUNs from Synology RS3412xs.If your NAS device still ceases to function properly once you reconnect your NAS and reinsert your hard disk drives, the problem may lie in the hard drives. If you hear a loud beep within one minute followed by a steady blue power light, then your NAS device’s components are fine. Other parts, such as the cooling fans or power supply unit, can be ordered through Synology’s website. It is also possible that your NAS device’s power supply unit is not sending sufficient amounts of power to the rest of your NAS device’s components. You will need to contact Synology support in order to have the motherboard replaced. If your Synology DS214+ still has a flashing blue power light at this point, the motherboard is the source of your problems.
Remove all hard drives from your NAS devices’ drive bays.Remove all external devices from the NAS.To check to see if the Synology DS214+ flashing blue power light is a result of your motherboard failing, perform the following steps: Why Is the blue light blinking on my Synology DS214+?
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