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Foglight for Storage Management Shared 6.1.0 - 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 Online-Only Topics

Clustered Storage Arrays — Network Performance Metrics

These metrics describe the performance of an EqualLogic array’s network and an Isilon array’s internal and external networks.

Current operational speed of the port link.

currentSpeedMb

Rated maximum speed of the port

maxSpeedMb

Number of incorrectly received data packets divided by the total number of received packets, expressed as a percentage.

packetErrorPercent

Bytes per second received through a port or group of ports.

bytesWrite

Bytes per second sent through a port or group of ports.

bytesRead

= Rcv Data Rate / Link Speed

bytesWriteUtilization

= Send Data Rate / Link Speed

bytesReadUtilization

Also NW Rcv Util (% of max)

= Rcv Data Rate / Max Port Speed

bytesWriteUtilizationMax

Also NW Send Util (% of max)

= Send Data Rate / Max Port Speed

bytesReadUtilizationMax

Capacity Metrics

The selection of capacity metrics displayed in any given dashboard depends on the selected device type and the metrics available from the device vendor. The following tables define each metric and shows the topology name for the metric. You need the topology name when referencing the metric in user-defined rules and dashboards.

Capacity metrics are organized into the following categories:

Storage Arrays — Array, Member, and Pool Capacity Metrics

The following table contains the capacity metrics you may see displayed for storage arrays, members/nodes, and pools.

Also Advertised LUNs Size

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

 

conf_LunSize

Capacity available in the pool that has not been committed to data, snapshots, or thick-provisioned LUNs. Raw counts all the disk blocks available, before applying RAID.

 

 

raw_available

Also Available Capacity

Capacity available in the pool that has not been committed to data, snapshots, or thick-provisioned LUNs. Usable means after applying RAID.

 

 

conf_available

Also Provisioned to LUNs

Capacity used for LUN data. Does not include capacity that is used for snapshots, reserves, etc.

Formerly displayed as Consumed Capacity.

 

Array:

lun_usable_capacity

Pool:

conf_used

= Total Advertised LUNs Size – Total Usable Capacity

Overcommitment reflects the minimum additional capacity needed in the pool to support the advertised capacity promised to thin-provisioned 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.

Overcommitment is available only for arrays where the vendor provides the total usable capacity.

 

conf_LunOvercommitted

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

 

 

disk_capacity

Total capacity of the pool in raw terms. Raw counts all the disk blocks allocated to the pool, before applying RAID.

 

 

raw_capacity

Total capacity of the pool or member/node in usable terms. Pools that are defined with a specific RAID level have this metric. Pools that can support LUNs with different RAID levels do not have this metric.

 

conf_capacity

= Total Usable Capacity - Available Usable Capacity.

 

 

conf_used

= Used Capacity / Total Usable Capacity

Percentage of the member/node's usable capacity that has been used.

 

 

Calculated

EqualLogic Pools-Members tab only.

Percentage of the pool storage capacity provided by a pool member.

 

 

Calculated

EMC Isilon Only Capacity Metrics

Isilon arrays provide additional metrics to describe the Isilon OneFS file system (IFS) capacity in terms of hard disk drive (HDD) and solid state drive (SSD) capacity.

 

Raw capacity of the hard drives in the array, as reported by the vendor.

 

 

raw_capacity_HDD

Raw capacity of the solid-state drives in the array, as reported by the vendor.

 

 

raw_capacity_SSD

Total capacity of the Isilon File System.

 

Array:

pool_capacity_conf

Pool: conf_capacity

= Total HDD Capacity + Total SSD Capacity

Capacity of the Isilon File System on a pool or member/node.

 

conf_capacity

Also IFS Free

Free capacity of Isilon File system.

Array:

pool_free_conf

Pool and member:

conf_available

= IFS Capacity - IFS Capacity: Free

Calculated

Capacity of Isilon File System on hard disk drives in an array, pool, or node.

conf_capacity_HDD

Free capacity of Isilon File System on hard disk drives in an array, pool, or node.

conf_available_HDD

= IFS Capacity: HDD Total - IFS Capacity: HDD Free

Calculated

Capacity of Isilon File System on solid state drives in an array, pool, or node.

conf_capacity_SSD

Free capacity of Isilon File System on solid state drives in an array, pool, or node.

conf_available_SSD

= IFS Capacity: SDD Total - IFS Capacity: SDD Free

Calculated

= IFS Capacity: HDD Free / IFS Capacity: HDD Total

 

conf_pct_available_HDD

= IFS Capacity: SDD Free / IFS Capacity: SDD Total

 

conf_pct_available_SSD

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