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Disk Configuration
hi i have an older nv+ v2, went out of firmware support in 2013 i am trying to understand the flexiraid setup configuration is 2 x 2tb drives - understand this should mirror = 2tb total - bay 1, b...
The capacity rule for single redundancy RAID volume is "sum the disks and subtract the largest". It's not possible to get a larger capacity and maintain redundancy.
Applying this rule to 2x2TB + 2x4TB gives 12TB-4TB=8TB (not 10). 2x2TB + 1x4TB would give you 4TB (2 TB of the 4 TB drive can't be used). You'd get this storage capacity if you were using XRAID (ignoring the FlexRAID option).
But if you are using FlexRAID, then the system is likely using RAID-5 - which doesn't handle unequal size disks. In that case, the system is using a 4x2TB array, which will give you 6 TB of storage. I don't think you can do better than that with an NV+ v2 NAS.
Anyway, if you just do a factory default with all disks in place (using the default XRAID), you should end up with an 8 TB volume. The NAS reports space in TiB, so it should report ~7.27.
brendanitpartne wrote:
i have an older nv+ v2, went out of firmware support in 2013
5.3.13 (the final firmware) was released in May of 2017. If you aren't running that, you should upgrade.
The capacity rule for single redundancy RAID volume is "sum the disks and subtract the largest". It's not possible to get a larger capacity and maintain redundancy.
Applying this rule to 2x2TB + 2x4TB gives 12TB-4TB=8TB (not 10). 2x2TB + 1x4TB would give you 4TB (2 TB of the 4 TB drive can't be used). You'd get this storage capacity if you were using XRAID (ignoring the FlexRAID option).
But if you are using FlexRAID, then the system is likely using RAID-5 - which doesn't handle unequal size disks. In that case, the system is using a 4x2TB array, which will give you 6 TB of storage. I don't think you can do better than that with an NV+ v2 NAS.
Anyway, if you just do a factory default with all disks in place (using the default XRAID), you should end up with an 8 TB volume. The NAS reports space in TiB, so it should report ~7.27.
brendanitpartne wrote:
i have an older nv+ v2, went out of firmware support in 2013
5.3.13 (the final firmware) was released in May of 2017. If you aren't running that, you should upgrade.
i am running latest firmware thank you
i have found a netgear raid configurator page and playing with this, seems 8tb is most i can get if i choose any raid
i may end up setting as JBOD still exploring
the NAS is stubbornly refusng to change the volume so have just tried erasing the disks as the factory reset left it intact at 6tb
brendanitpartne wrote:
i am running latest firmware thank you
It'd be helpful to know exactly what that is (for instance, is it 5.3.13?)
yes it is thanks
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