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Alert Less than 20% of volume data's capacity is free. Performance on volume data will degrade
Firmware 6.10.3 I am seeing this allert Less than 20% of volume data's capacity is free. Performance on volume data will degrade if additional capacity is consumed. NETGEAR recommends that you ad...
davidk1952 wrote:
I assumed the difference from 16TB total drive to the 10.9TB the overhead is taken up i the difference,
Just to clarify the volume size. With XRAID/RAID-5 the volume capacity for 4x4TB is 12 TB. The other 4 TB are used for RAID parity blocks (which is what the system uses to rebuild a disk when it is replaced).
But the NAS reports sizes in TiB (1024*1024*1024*1024 bytes), not TB (1000*1000*1000*1000 TB). 12 TB is the same as 10.9 TiB.
2.26/10.9 is about 20% (slighty more, but there could be some accounted for space).
The warnings are quite conservative. Generally I expand my volume when free space drops to about 15%, and I haven't had any issues with stability.
FWIW, I do leave quotas on, so I can see the space used by every share.
davidk1952 wrote:Now the SMR issue has just started to show up in the last 6months of discuddions, some say the Red are and some say they are not...but going forward I'll be sure to stay away from any that are...
Currently shipping "Red" drives <8TB are SMR. After being called out on the issue, WD introduced the "Red Plus" line, which is still 5400RPM but also CMR. "Red Pro" are still CMR, and are 7200RPM.
So go Red Pro if I'm going to change... Good to know... They were just on sale, darn!
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