Introduction to storage monitoring

To add a storage device to my network

Storage performance monitoring

Storage performance metrics collected

Storage performance events, incidents and thresholds

Entuity supports the inventory and status polling of the following storage assets:

• DataDomain SSH and SNMP
• Dell EMC VNX, VNXe (+Unity) NAVISecCLI and uemcli
• Dell EqualLogic SNMP
• Dell Isilon (SSH and REST API)
• HPE Nimble SSH
• NetApp SNMP (from Entuity v21.0 upwards, only NetApp SNMP is supported. Both NetApp SNMP and ssh are supported in Entuity v19.0 and v20.0.)
• Pure Storage REST

Entuity storage monitoring raises events when monitored storage assets are found to be in a sub-optimal state or are missing. These events contain all relevant details regarding the nature of the failure and all known inventory information about the asset.

To add a storage device to my network:

Please see this article for further help and information on adding a storage device to your network.

Storage performance monitoring:

Entuity supports performance monitoring for the following storage devices, which draws on the data collected by Entuity's storage hardware monitoring functionality:

• DataDomain SNMP (from Entuity v20.0 P02 upwards)
• Dell EMC VNX
• Dell EMC VNXe
• Dell Isilon
• NetApp (from Entuity v20.0 P02 upwards)
• Pure Storage

The following Summary dashboards are available to view particular metrics:

• Storage Summary (view level) - displays a summary of all managed storage devices.
• Storage Device Summary
• Storage Pool Summary
• Volume Summary
• LUN Summary
• Physical Disk Summary

The hierarchy of storage performance monitoring is as follows:

• Storage devices contain a number of physical disks.
• Groups of physical disks are assigned to storage pools (RAID or non-RAID).
• Each storage pool is divided into one or more volumes and LUNs (thick or thin).
• Each LUN is exported as a single-block transfer endpoint (e.g. iSCSI target).
• Each volume is exported by one or more shares (NFS/SMB/CIFS)

Storage performance metrics collected:

Storage devices:

• CPU usage (%)
• Memory usage (%)
• Raw disk capacity (polled or aggregated)
• Raw disk used / free (polled or aggregated)
• Raw disk used %
• Read/Write/Total IOPs (polled or aggregated)
• Read/Write/Total MBps (polled or aggregated)
• Usable capacity (sum of storage pools)
• (Max + average of latency for disks on this device)
• Read: Write IOPS ratio (polled or aggregated)

Physical disks:

• Read / Write / Total IOPs
• Read / Write / Total MBps
• IOSize
• Used Capacity
• Used Capacity %
• (Latency)
• (Soft/hard error count)

Storage Pools:

• Name
• Status
• Raw capacity
• Consumed capacity
• Available capacity
• User/logical capacity
• Capacity - total subscribed/provisional /oversubscribed
• Read/Write/Total OPs (polled or aggregated)
• Read/Write/Total MBps (polled or aggregated)
• IOSize - Read/Write/Total - (polled or aggregated)
• Max + average of latency for disks in this storage pool
• % full
• Summary: LUN count
• Summary: volume count
• Summary: share count
• Summary: disk count
• Soft/hard error count (polled or aggregated)
• Type of storage pool (incl RAID type if applicable)

LUNs:

• Name (if not present, use endpoint/UUID)
• Endpoint/UUID
• Type (thick/thin/free)
• Protocol (e.g. iSCSI, FC, FCoE)
• Total size
• Size allocated on the filesystem
• Size used on the filesystem
• Provisioned size (thin only)
• Provisioned used (thin only)
• Provisioned used (%)
• Read-only or read-write
• Mapped: true/false
• Read/Write/Total IOPs (polled or aggregated)
• Read/Write/Total MBps (polled or aggregated)
• IOSize - Read/Write/Total (polled or aggregated)

Volumes:

• Name
• Status
• Type (thick/thin)
• Total capacity
• Used capacity
• Size allocated on filesystem
• Size used on filesystem
• Provisioned size (thin only)
• Provisioned used (thin only)
• Provisioned used (%)
• Read/write/total IOPS
• Read/write/total MBps
• IOSize - Read/Write/Total - (polled or aggregated)
• Latency

Shares:

• Name
• Type (SMB/CIFS/NFS)
• Path/endpoint
• Volume size (shares always belong in a volume)
• Used
• Used %
• Free
• (Quota total)

Ports:

• Status
• Speed
• SFP State
• Duplex
• Reads/s or RX pps
• Writes/s or TX pps
• Read MB/s
• Write MB/s
• Utilization %

Storage performance events, incidents and thresholds:

Storage device:

• Storage Device High CPU Usage incident
  • Storage Device High CPU Usage
  • Storage Device High CPU Usage Cleared
• Storage Device High Memory Usage incident
  • Storage Device High Memory Usage
  • Storage Device High Memory Usage Cleared
• Storage Device Low Usable Capacity incident
  • Storage Device Low Usable Capacity
  • Storage Device Low Usable Capacity Cleared

Physical disks:

• Physical Disk High Hard Error Rate incident
  • Physical Disk High Hard Error Rate
  • Physical Disk High Hard Error Rate Cleared
• Physical Disk High Latency incident
  • Physical Disk High Latency
  • Physical Disk High Latency Cleared
• Physical Disk High Soft Error Rate incident
  • Physical Disk High Soft Error Rate
  • Physical Disk High Soft Error Rate Cleared

Storage pools:

• Storage Pool High Hard Error Rate incident
  • Storage Pool High Hard Error Rate
  • Storage Pool High Hard Error Rate Cleared
• Storage Pool High Latency incident
  • Storage Pool High Latency
  • Storage Pool High Latency Cleared
• Storage Pool High Soft Error Rate incident
  • Storage Pool High Soft Error Rate
  • Storage Pool High Soft Error Rate Cleared
• Storage Pool High Used Capacity incident
  • Storage Pool High Used Capacity
  • Storage Pool High Used Capacity Cleared

LUNs:

• LUN High Latency incident
  • LUN High Latency
  • LUN High Latency Cleared
• LUN High Used Provisioned incident
  • LUN High Used Provisioned
  • LUN High Used Provisioned Cleared

Volume:

• Volume High Latency incident
  • Volume High Latency
  • Volume High Latency Cleared
• Volume High Used Provisioned incident
  • Volume High Used Provisioned
  • Volume High Used Provisioned Cleared