Home > Storage > PowerScale (Isilon) > Product Documentation > Data Efficiency > Dell PowerScale OneFS: Data Reduction and Storage Efficiency > Efficiency reporting
OneFS 9.3 and later releases provide three CLI tools for validating and reporting the presence and benefits of data inlining, namely:
# isi statistics data-reduction
Recent Writes Cluster Data Reduction
(5 mins)
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Logical data 90.16G 18.05T
Zero-removal saved 0 -
Deduplication saved 5.25G 624.51G
Compression saved 2.08G 303.46G
Inlined data saved 1.35G 2.83T
Preprotected physical 82.83G 14.32T
Protection overhead 13.92G 2.13T
Protected physical 96.74G 26.28T
Zero removal ratio 1.00 : 1 -
Deduplication ratio 1.06 : 1 1.03 : 1
Compression ratio 1.03 : 1 1.02 : 1
Data reduction ratio 1.09 : 1 1.05 : 1
Inlined data ratio 1.02 : 1 1.20 : 1
Efficiency ratio 0.93 : 1 0.69 : 1
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Note: The effect of data inlining is not included in the data reduction ratio because it is not actually reducing the data in any way - just relocating it and protecting it more efficiently. However, data inlining is included in the overall storage efficiency ratio.
The ‘inline data saved’ value represents the count of files which have been inlined multiplied by 8KB (inode size). This value is required to make the compression ratio and data reduction ratio correct.
# isi_cstats
Total files : 397234451
Total inlined files : 379948336
Total directories : 32380092
Total logical data : 18471 GB
Total shadowed data : 624 GB
Total physical data : 26890 GB
Total reduced data : 14645 GB
Total protection data : 2181 GB
Total inode data : 9748 GB
Current logical data : 18471 GB
Current shadowed data : 624 GB
Current physical data : 26878 GB
Snapshot logical data : 0 B
Snapshot shadowed data : 0 B
Snapshot physical data : 32768 B
Total inlined data savings : 2899 GB
Total inlined data ratio : 1.1979 : 1
Total compression savings : 303 GB
Total compression ratio : 1.0173 : 1
Total deduplication savings : 624 GB
Total deduplication ratio : 1.0350 : 1
Total containerized data : 0 B
Total container efficiency : 1.0000 : 1
Total data reduction ratio : 1.0529 : 1
Total storage efficiency : 0.6869 : 1
Raw counts
{ type=bsin files=3889 lsize=314023936 pblk=1596633 refs=81840315 data=18449 prot=25474 ibyte=23381504 fsize=8351563907072 iblocks=0 }
{ type=csin files=0 lsize=0 pblk=0 refs=0 data=0 prot=0 ibyte=0 fsize=0 iblocks=0 }
{ type=hdir files=32380091 lsize=0 pblk=35537884 refs=0 data=0 prot=0 ibyte=1020737587200 fsize=0 iblocks=0 }
{ type=hfile files=397230562 lsize=19832702476288 pblk=2209730024 refs=81801976 data=1919481750 prot=285828971 ibyte=9446188553728 fsize=17202141701528 iblocks=379948336 }
{ type=sdir files=1 lsize=0 pblk=0 refs=0 data=0 prot=0 ibyte=32768 fsize=0 iblocks=0 }
{ type=sfile files=0 lsize=0 pblk=0 refs=0 data=0 prot=0 ibyte=0 fsize=0 iblocks=0 }