Foglight for Storage Management Shared 4.6

Table 14. EMC Isilon only Capacity Metrics
Capacity Metric	Description	A	M	P	Topology Name
Total HDD Capacity	Raw capacity of the hard drives in the array, as reported by the vendor.				raw_capacity_HDD
Total SSD Capacity	Raw capacity of the solid-state drives in the array, as reported by the vendor.				raw_capacity_SSD
IFS Capacity: Total	Total capacity of the Isilon File System.				Array: pool_capacity_conf Pool: conf_capacity
IFS Capacity	= Total HDD Capacity + Total SSD Capacity Capacity of the Isilon File System on a pool or member/node.				conf_capacity
IFS Capacity: Free	Also IFS Free Free capacity of Isilon File system.				Array: pool_free_conf Pool and member: conf_available
IFS Capacity Used	= IFS Capacity - IFS Capacity: Free				Calculated
IFS Capacity: HDD Total	Capacity of Isilon File System on hard disk drives in an array, pool, or node.				conf_capacity_HDD
IFS Capacity: HDD Free	Free capacity of Isilon File System on hard disk drives in an array, pool, or node.				conf_available_HDD
IFS Capacity: HDD Used	= IFS Capacity: HDD Total - IFS Capacity: HDD Free				Calculated
IFS Capacity: SDD Total	Capacity of Isilon File System on solid state drives in an array, pool, or node.				conf_capacity_SSD
IFS Capacity: SDD Free	Free capacity of Isilon File System on solid state drives in an array, pool, or node.				conf_available_SSD
IFS Capacity: SDD Used	= IFS Capacity: SDD Total - IFS Capacity: SDD Free				Calculated
HDD % Free	= IFS Capacity: HDD Free / IFS Capacity: HDD Total				conf_pct_available_HDD
SDD % Free	= IFS Capacity: SDD Free / IFS Capacity: SDD Total				conf_pct_available_SSD

Filers — Filer and Aggregate Capacity Metrics

Foglight for Storage Management supports NetApp filers (F). NetApp uses the word aggregate (Ag) instead of pool, but the metrics collected for aggregates are similar to the metrics collected for pools.

Table 15. Filer and Aggregate Capacity Metrics
Capacity Metric	Description	F	Ag	Topology Name
Advertised LUNs Size	Also Total Advertised LUNs Size or Adv LUNs Size Sum of the Advertised LUN Size for all LUNs in the entity.			configured_lun_size
Advertised NASVolumes Size	Sum of the Advertised Size for all NASVolumes.			Filer: configured_vol_size Aggregate: conf_VolSize
Disk Capacity (Raw)	Also Total Disk Capacity Sum of the sizes of the disks in the filer. This includes spares.			disk_capacity
Free Disk/Spares Capacity (Raw)	Amount of disk capacity that has not been committed to an aggregate. Disk capacity cylinder coloring and capacity alarms are defined in registry variables with the prefix: StSAN.FilerDisks.PctUnallocatedCapacityThres hold...			disk_free
Aggr Capacity (Usable) Total	Also Total Usable Aggr Capacity Sum of the Total Usable Capacity of all the aggregates in the filer. Aggregate capacity cylinder coloring and alarms are defined in registry variables with the prefix: StSAN.FilerAggregates.PctUnallocatedCapacityThreshold...			pool_capacity_conf
Aggr Capacity (Usable) Free	Also Available Aggr Capacity Sum of the Available Usable Capacity in the aggregates. Usable means after applying RAID.			pool_free_conf
Aggr Capacity (Raw) Total	Also displayed as Aggregate Capacity (Raw) Sum of the raw capacity of all the aggregates in the filer.			pool_capacity_raw
Aggr Capacity (Raw) Free	Sum of the available raw capacity in all the aggregates.			pool_free_raw
Overcommitment	= Advertised NASVolumes Size – Aggr Capacity (Usable) Total Overcommitment reflects the minimum additional capacity needed in the aggregate to support the advertised capacity promised to thin-provisioned volumes and LUNs. When the value of overcommitment is greater than zero, you run the risk of I/O writes failing because of insufficient physical storage to support the demand.			conf_overcommitted
Total Usable Capacity	Total capacity of the aggregate in usable terms. Usable means after applying RAID.			conf_capacity
Available Usable Capacity	Also displayed as Available Capacity Capacity available in the aggregate that has not been committed to data, snapshots, or thick-provisioned volumes and LUNs, in usable terms. Usable means after applying RAID.			conf_available
Used Capacity	= Total Usable Capacity – Available Usable Capacity			conf_used
% Available	Also % Free = Available Usable Capacity / Total Usable Capacity			Calculated

Storage Arrays and Filers — LUN, NASVolume, and Disk Capacity Metrics

These metrics describe the capacity of LUNs, NASVolumes, and disks.

Table 16. LUN, NASVolume, and Disk Capacity Metrics
Capacity Metric	Description	L	N	D	Topology Name
Advertised LUN Size	Size of the LUN as advertised to the hosts connected to the LUN.				advertisedSize
Provisioned Usable Capacity	Capacity provisioned for LUN data. In a thin-provisioned LUN, this is the capacity used for data written to the LUN. In a thick-provisioned LUN, this is the capacity allocated to the LUN, and does not reflect data written.				size
Provisioned Raw Capacity	Capacity provisioned for LUN data in raw terms.				rawCapacity
Advertised Size	Size of the NASVolume as advertised to the host mounting the volume.				total_capacity
Free Capacity	Advertised Size – Used Capacity				available_capacity
Used Capacity	Capacity in volume committed to data, snapshots, etc. in usable terms.				used_capacity
% Used	= Used Capacity / Advertised Size				percent_used
Disk Size	Size of the disk in MBs. Disk capacity cylinder coloring and capacity alarms are defined in registry variables with the prefix: StSAN.FilerDisks.PctUnallocatedCapacityThreshold...				size

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Foglight for Storage Management Shared 4.6 - User and Reference Guide

Storage Arrays — Array, Member, and Pool Capacity Metrics

EMC Isilon Only Capacity Metrics

Filers — Filer and Aggregate Capacity Metrics

Storage Arrays and Filers — LUN, NASVolume, and Disk Capacity Metrics