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Dell Fluid File System Version 5.0 Support Matrix

PDF

Space Pre-Allocation

#GUID-879994B4-00E4-48C2-81AC-7F2F051CDAED__GUID-40E57510-1AD2-420A-A9FB-592376EC5380 and #GUID-879994B4-00E4-48C2-81AC-7F2F051CDAED__GUID-D24DC99A-1719-4ED7-9940-D3CAF70A83BA provide an estimation of the pre-allocated (reserved) space for various file-system functions. These calculations can help you estimate disk space requirements and space growth of FluidFS systems.
Table 1. Reserved Space by Function
Allocation per Reserved space
Cluster 30.4 GB
Appliance 425.5 GB
LUN 4 GB
Total space 0.5%

The amount of reserved space can also be estimated using #GUID-879994B4-00E4-48C2-81AC-7F2F051CDAED__GUID-D24DC99A-1719-4ED7-9940-D3CAF70A83BA.

Table 2. Reserved Space by Pool Size
NAS Pool Size Percentage of Reserved Space
10 TB – 20 TB 2.5% – 4.5%
20 TB – 128 TB 1% – 2.5%
> 128 TB < 1 %

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