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Foglight for Storage Management Shared 6.0.0 - User Guide

Getting Started Configuring Agents to Monitor Storage Devices
Brocade SAN Switches Cisco SAN Switches Dell Compellent Arrays Dell EqualLogic PS Series Array Groups EMC CLARiiON CX Series Arrays (CLI) EMC CLARiiON, VNX, or VMAX Storage Arrays (SMI-S) EMC Isilon EMC VPLEX Hitachi Data Systems AMS, USP, and VSP HP EVA Storage Arrays HP 3PAR Arrays NetApp Filers Configuration Procedures
Managing Agents Using Foglight for Storage Management Monitoring Storage Performance Investigating Storage Devices Investigating Storage Components Investigating VPLEX Storage Troubleshooting Storage Performance Managing Data Collection, Rules, and Alarms Understanding Metrics Appendix: Supported Storage Devices Table

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.

Also Total Advertised LUNs Size or Adv LUNs Size

Sum of the Advertised LUN Size for all LUNs in the entity.

 

configured_lun_size

Sum of the Advertised Size for all NASVolumes.

Filer:

configured_vol_size

Aggregate:

conf_VolSize

Also Total Disk Capacity

Sum of the sizes of the disks in the filer. This includes spares.

 

disk_capacity

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

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

Also Available Aggr Capacity

Sum of the Available Usable Capacity in the aggregates. Usable means after applying RAID.

 

pool_free_conf

Also displayed as Aggregate Capacity (Raw)

Sum of the raw capacity of all the aggregates in the filer.

 

pool_capacity_raw

Sum of the available raw capacity in all the aggregates.

 

pool_free_raw

= 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 capacity of the aggregate in usable terms. Usable means after applying RAID.

 

conf_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

= Total Usable Capacity – Available Usable Capacity

 

conf_used

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.

Size of the LUN as advertised to the hosts connected to the LUN.

 

 

advertisedSize

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

Capacity provisioned for LUN data in raw terms.

 

 

rawCapacity

Size of the NASVolume as advertised to the host mounting the volume.

 

 

total_capacity

Advertised SizeUsed Capacity

 

 

available_capacity

Capacity in volume committed to data, snapshots, etc. in usable terms.

 

 

used_capacity

= Used Capacity / Advertised Size

 

 

percent_used

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

Overview of Metrics in Foglight for Storage Management

Metrics and data are saved in the Foglight for Storage Management database as properties of topology objects. Topology objects correspond to the types of storage devices and components being monitored in your storage environment.

Summary of SAN Topology Objects

If you want to create new rules or custom dashboards, or if you want to browse the data directly instead of through the Storage & SAN dashboards, you need to know the names of devices, components, and metrics as they are stored in the Foglight for Storage Management Database Repository.

The following tables list the top-level storage devices and all child components, and identifies their topology object names. These lists are not comprehensive, rather they reflect the objects that you may need to reference if you are creating new rules or custom dashboards. For other objects, see the Data dashboard. For help navigating to the Data dashboard, see Locating SAN Topology Objects in Foglight for Storage Management.

SanFabric

SanFcSwitch

SanVsan

SanFiler

SanStorageArray

SanFcSwitchPort

SanStorageSupplierPortFC

SanStorageSupplierPortISCSI

SanStorageSupplierPortIB

SanController

SanPhysicalDisk

SanLun

SanMember

SanVolume

SanPool

SanStorageVirtualMachine

SanLogicalInterface

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