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Did you check the compatibility ?<br><a href="https://www.qnap.com/en-us/compatibility/?model=470&amp;category=1" rel="ugc">https://www.qnap.com/en-us/compatibility/?model=470&amp;category=1</a>
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Did you check the compatibility ?
https://www.qnap.com/en-us/compatibility/?model=470&category=1 [https://www.qnap.com/en-us/compatibility/?model=470&category=1]

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No I didn't because the first time I plugged in either drives they worked. &nbsp;I am using the exact same drives in another location and I have no issue when I have unplugged and plugged back in the drives.<br><br><br>
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No I didn't because the first time I plugged in either drives they worked.  I am using the exact same drives in another location and I have no issue when I have unplugged and plugged back in the drives.




mkramer777

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if you plug the drives into a computer can you access them?
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if you plug the drives into a computer can you access them?

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FIRMWARE UPDATE FIXED ISSUE
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I decided to plug in an external hard drive into my QNAP and copy files to it. &nbsp;I did this with 2 hard drives and rotated them last month. &nbsp;This month I unplugged 1 of the drives and plugged the other in and the QNAP won't recognize it. &nbsp;This is happening with both drives. &nbsp;Neither is recognized by the QNAP but they worked fine before when I swapped them out. &nbsp;Any suggestion on what I could try? &nbsp;Is the USB port bad?<br><br><a href="https://filedb.experts-exchange.com/incoming/2021/07_w28/1565653/Screen-Shot-2021-07-07-at-7.56.53-AM.png" rel="ugc"><img src="https://filedb.experts-exchange.com/incoming/2021/07_w28/1565653/Screen-Shot-2021-07-07-at-7.56.53-AM.png" class="fr-fic fr-dib"></a>
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Screen-Shot-2021-07-07-at-7.56.53-AM.png


I decided to plug in an external hard drive into my QNAP and copy files to it.  I did this with 2 hard drives and rotated them last month.  This month I unplugged 1 of the drives and plugged the other in and the QNAP won't recognize it.  This is happening with both drives.  Neither is recognized by the QNAP but they worked fine before when I swapped them out.  Any suggestion on what I could try?  Is the USB port bad?

QNAP issue with external hard drive

Disaster Recovery is the planning for and creation of policies and procedures related to the resumption or continuation of an organization's functions following a catastrophic event. The term is most frequently used in relation to failure of networks, but DR preparations also include other business systems and personnel considerations.

Disaster Recovery

Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.