1 EMC Celerra NAS Server Metrics

This chapter provides descriptions for all EMC Celerra NAS Server metric categories, and tables list and describe associated metrics for each category. The tables also provide user actions if any of the metrics for a particular category support user actions.

1.1 Check Points Metrics

The metrics in this category provide information about existing SnapSure Checkpoints for all mounted production file systems on all data movers in the Celerra Server.

Default Collection Interval — Every 15 minutes

Table 1-1 Check Points Metrics

Metric	Description and User Action
Backup Timestamp	Timestamp of SnapSure Checkpoint creation or last refresh.
Checkpoint Volume Available Space (GB)	Available space in the Checkpoint SaveVol.
Checkpoint Volume Size (GB)	Total size of the Checkpoint SaveVol.
Checkpoint Volume Used Space (GB)	Used space of the Checkpoint SaveVol.
Checkpoint Volume Used (%)	Percent used of the Checkpoint SaveVol. This triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.
Is Inactive	State of the SnapSure Checkpoint. Possible status values are: Active — Checkpoint is normal and functioning properly. Inactive — Contents were deleted because the system ran out of space to store Checkpoints. For this status, either refresh or delete SnapSure Checkpoint and take corrective action using EMC administrative tools. Restoring — The production file system is currently being restored from this checkpoint.
Name	SnapSure Checkpoint name.
Production File System	File system of which this Checkpoint is an image.
VPFS	Name of the SaveVol where the Checkpoint is stored.

1.2 Data Mover Network Throughput Metrics

The metrics in this category provide information about the average network throughput of all network interfaces for each Data Mover in the Celerra server.

Default Collection Interval — Every 10 minutes

Table 1-2 Data Mover Network Throughput Metrics

Metric	Description
Data Mover	Data Mover name.
Network Throughput (KB/sec)	Average network throughput on all network interfaces.

1.3 Data Mover Status Metrics

The metrics in this category provide information on Data Movers and their status properties.

Default Collection Interval — Every 5 minutes

Table 1-3 Data Mover Status Metrics

Metric	Description and User Action
Data Mover CPU (%)	Data Mover CPU utilization. This triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.
Data Mover Memory (%)	Data Mover memory utilization. This triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.
Data Mover Status	Status of the Data Mover (enabled or disabled). This determines whether the Data Mover is up. This triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.
Name	Data Mover name.
Status Actual	Online, active — Online and has mounted file systems. Online, ready — Online but does not have any mounted file systems (standby mode).
Up Time	Elapsed time since the last Data Mover reboot.

1.4 File Systems Metrics

The metrics in this category provide information about the list of existing uxfs file systems.

Default Collection Interval — Every 15 minutes

Table 1-4 File Systems Metrics

Metric	Description and User Action
Available Space (GB)	Available space in the file system.
File System	Name of the file system.
File System Used (%)	Percentage of used space. This triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.
Max Files	Maximum number of files (inode count) in the file system.
Size (GB)	Size of the file system.
Storage Pool Name	Storage pool on which the file system is created.
Used Space (GB)	Used space in the file system.
Volume Name	Volume on which the file system is created.

1.5 NFS Exports Metrics

The metrics in this category provide information on all NFS exports and access hosts of the Celerra Server.

Default Collection Interval — Every 12 hours

Table 1-5 NFS Exports Metrics

Metric	Description
Access Hosts	All hosts, IP addresses, or subnets that are granted mount access to the export.
Data Mover	Data Mover from which the file system is exported.
Export	Complete path to the directory from its mount point.
Read-Only Hosts	All hosts, IP addresses, or subnets that are granted read-only access to the export.
Read-Write Hosts	All hosts, IP addresses, or subnets that are granted read-write mount access to the export.
Root Hosts	All hosts, IP addresses, or subnets that are granted root access to the export.

1.6 NFS Operations Metrics

The metrics in this category provide information about average call time and NFS operations per second.

Default Collection Interval — Every 10 minutes

Table 1-6 NFS Operations Metrics

Metric	Description and User Action
Average Call Time	Triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.
Data Mover	Data Mover on which the statistics are reported.
NFS Bad Calls (v2 and v3) (%)	NFS bad calls percentage. This triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.
NFS Calls per Second (v2 and v3) (%)	Operations per second. This triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.

1.7 NFS Statistics Metrics

The metrics in this category provide information about nfsstat information.

Default Collection Interval — Every 10 minutes

Table 1-7 NFS Statistics Metrics

Metric	Description and User Action
Data Mover	Data Mover on which the statistics are reported.
Failures	Bad calls due to packet drops, which can be used to tune NFS configuration attributes.
ms/call	Milliseconds per call, which can be used to tune NFS configuration attributes.
Name	NFS call type, such as null, setattr, getattr, and so forth.
ncalls	Total number of calls of this type, which can be used to tune NFS configuration attributes.
% Total Calls	Percentage of total calls, which can be used to tune NFS configuration attributes.
Version	NFS version (V2 or V3).

1.8 Network Devices Metrics

The metrics in this category provide information about existing network devices on the system. By default, each physical port on a Network Interface Card (NIC) is a device unless the port is added to a virtual device.

Default Collection Interval — Every 12 hours

Table 1-8 Network Devices Metrics

Metric	Description
Data Mover	Data Mover on which the device is configured.
Name	Port of virtual device name.
Speed/Duplex	Current speed and duplex setting of the device.
Type	Type of network device, which could be a port, Ethernet channel, fail-safe network, or link aggregation.

1.9 Network Interfaces Metrics

The metrics in this category provide information about network interfaces on Data Movers.

Default Collection Interval — Every 12 hours

Table 1-9 Network Interfaces Metrics

Metric	Description
Address	IP address of the interface.
Broadcast Address	IP address used for broadcasting to all stations.
Data Mover	Data Mover on which the interface is configured.
Device	Port or virtual device on which the interface is configured.
MTU	Maximum Transmission Unit (MTU) size for packets using this interface.
Name	Name of the database.
Netmask	Network address mask of the interface.
Network Interface Status	Interface status, which is Up or Down.
VLAN ID	Virtual LAN identifier. A value of zero (0) means that there is no VLAN ID, and VLAN tagging is not enabled.

1.10 Network Statistics Metrics

The metrics in this category provide netstat information on different network interfaces of data movers in the Celerra system.

Default Collection Interval — Every 10 minutes

Table 1-10 Network Statistics Metrics

Metric	Description and User Action
Data Mover	Data Mover on which the statistics are reported.
Ibytes	Total bytes received on this device. Use this metric to tune network configuration attributes.
MTU	Means Maximum Transfer Unit.
Name	Network device name.
Network Throughput (KB/sec)	Network throughput of this device. Use this metric to tune network configuration attributes.
Obytes	Total bytes sent on this device. Use this metric to tune network configuration attributes.
Receive Rate (bytes/sec)	Throughput - Bytes received per second. Use this metric to tune network configuration attributes.
Send Rate (bytes/sec)	Throughput -Bytes sent per second. Use this metric to tune network configuration attributes.
Total Network Receive Errors	Total network receive errors on this device. Use this metric to tune network configuration attributes.
Total Network Send Errors	Total network send errors on this device. Use this metric to tune network configuration attributes.

1.11 Pools Metrics

The metrics in this category provide information about the list of Automatic Volume Management (AVM) storage pools and detailed information about each storage pool.

Default Collection Interval — Every 15 minutes

Table 1-11 Pools Metrics

Metric	Description and User Action
Clients	List of file systems or SavVols using the storage pool.
Description	Description of the storage pool, such as CLARiiON RAID5 4plus1 and CLARiiON RAID5 on S-ATA.
Disk Type	Disk type used by the storage pool.
Is Dynamic?	Applies only to system-defined storage pools. Indicates if the storage pool can extend automatically. (True/False)
Is User Defined?	Indicates whether system-defined or user-defined. (True/False)
Members	List of member volumes in the storage pool.
Name	Name of the storage pool.
Size (GB)	Total capacity of the storage pool.
Storage Pool Used (%)	Total allocated space. This triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.
Used (GB)	Percentage of allocated space.

1.12 Response Metrics

Based on the Control Station TCP ping status, the metrics in this category determine whether the Celerra Server target is up.

Default Collection Interval — Every 2 minutes

Table 1-12 Response Metrics

Metric	Description
Status	Indicates up or down by the pinging control station. If down, check the control station to determine why it is not reachable.
TCP Ping, Milliseconds	Time required to complete the ping operation. This triggers an alert based on threshold settings.

1.13 Routing Metrics

The metrics in this category provide information about static routes defined for a Data Mover.

Default Collection Interval — Every 12 hours

Table 1-13 Routing Metrics

Metric	Description
Data Mover	Data Mover on which the route is defined.
Destination	IP address of the route destination.
Gateway	IP address of the gateway used to reach the destination addresses.
Interface	Interface associated with the route.
Netmask	Subnet mask of the interface.

1.14 Storage System Status Metrics

The metrics in this category provide the status of the back-end storage system.

Default Collection Interval — Every 5 minutes

Table 1-14 Storage System Status Metrics

Metric	Description and User Action
ClariionID/SymmID	Clariion or Symmetrix ID of the system.
Is Captive	Is the storage system captive?
Is Connected	Is the component currently connected? Determines if the storage system is up or not. If not connected, check the error condition of the storage system.
Is Storage System FailedOver	Is the component presently failed over? This triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.
Name	Model and serial number of the storage system.

1.15 Volumes Metrics

The metrics in this category provide information about the list of existing volumes and detailed information about each volume and how it is used.

Default Collection Interval — Every 15 minutes

Table 1-15 Volumes Metrics

Metric	Description and User Action
Client Type	Client - Volume type (slice, strip, disk, pool) or file system.
Clients	Volumes of file systems that use this volume.
Disk Type	Disk volume type, such as CLSTD, CLATA, and so forth.
InUse	Is in use by other volumes or file systems.
Name	Name of the volume.
Size (GB)	Total capacity of the volume.
Type	Type of the volume: disk, slice, stripe, meta, or pool.
Used Capacity (GB)	Space used in gigabytes.
Type	Percentage of space used. This triggers an alert based on threshold settings. Take corrective action using EMC administrative tools.
Volume	Volumes