Dell VNXe2 Monitoring System Performance

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  • Dell VNXe2 | Monitoring System Performance - Page 1
    EMC® VNXe® Series Version 3.1 Monitoring System Performance P/N 302-002-409 REV 02
  • Dell VNXe2 | Monitoring System Performance - Page 2
    are the property of their respective owners. For the most up-to-date regulatory document for your product line, go to EMC Online Support (https://support.emc.com). EMC Corporation Hopkinton, Massachusetts 01748-9103 1-508-435-1000 In North America 1-866-464-7381 www.EMC.com 2 EMC VNXe Series
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    the collection of historical performance metrics 16 Monitor system performance using the CLI 19 Manage metrics service 20 View metrics service settings 20 Configure metrics service 21 Manage metrics settings 21 View metrics settings 22 Manage historical metrics values 23 View historical
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    CONTENTS Total iSCSI Bandwidth 38 Total iSCSI Requests/Second 39 Average LUN I/O Size 39 Average LUN Queue Length 40 Total LUN Bandwidth 40 Total LUN Throughput/IOPS 41 Total Network Bandwidth 41 Total Network Throughput/IOPS 42 Average NFS I/O Size 42 Total NFS Bandwidth 43 Total NFS
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    CHAPTER 1 About performance metrics l About performance metrics 6 l About line charts...6 l About heat maps...8 l About filters...8 l Performance metrics aging policy 9 l Available performance metrics 9 About performance metrics 5
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    About performance metrics About performance metrics You can analyze system performance by viewing and interacting with charts that display historical performance data. These charts enable you to: l Compare changes in performance across multiple metrics, such as network traffic, bandwidth, and
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    About performance metrics Table 1 Calculations used for aggregating data (continued) Calculation Average Description Sum of a set of numerical measurements divided by the number of measurements in the set. For example, the system uses the following formula to calculate the Average CPU Utilization
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    About performance metrics to display the data using the next smallest available interval. This behavior can also occur when you page back and forth through time. For example, suppose you select the Total Cache Throughput/IOPS metric and the 1 Week preset. The system tries to display the metric data
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    About performance metrics Note If you select the breakdown category for a displayed heat map as a filter category, the system will close the displayed heat map. Performance metrics aging policy The system governs the aging of collected metrics data according to the following goals: l The total
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    deployments microseconds, across all disks used in provisioned only) on page 34 storage, including time spent in the queue. Average Disk Service Time (physical deployments only) on page 35 Average time spent completing disk I/O requests, in microseconds, across all disks used in provisioned
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    About performance metrics Table 4 Performance metrics available (continued) Resource Metric Description LUN Average LUN I/O Size on Average size of LUN I/O requests, in KB, across all page 39 LUNs in the storage system. Average LUN Queue Length on page 40 Average number of LUN I/O requests
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    About performance metrics 12 EMC VNXe Series 3.1 Monitoring System Performance
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    CHAPTER 2 Monitor system performance using Unisphere l View aggregated metrics data using line charts 14 l View detailed metrics data using a heat map 14 l View detailed metrics data using a filter 15 l Remove a filter...15 l Export performance metrics data 16 l Enable the collection of
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    Monitor system performance using Unisphere View aggregated metrics data using line charts To view and analyze aggregated performance metrics, you can use a line chart. A line chart initially displays aggregated information for one performance metric, such as Total LUN Bandwidth. It can help you
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    Monitor system performance using Unisphere Procedure 1. Click System > System Performance. 2. Select the metric for which you want to display detailed data. 3. Click on the category by which you want to break down the aggregated data displayed in the line chart. The breakdown categories are located
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    Monitor system performance using Unisphere 3. Click OK. Export performance metrics data You can export performance metrics data to a .csv file and use the data for reporting purposes. The export process works as follows: l Enables you to select the metric data behind one or more open line charts
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    Monitor system performance using Unisphere Procedure 1. Click System > System Performance. 2. Click the Enabled link in the Metrics Collection Status field near the top right corner of the window. 3. Clear the Enable metrics collection checkbox, and click OK. Disable the collection of historical
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    Monitor system performance using Unisphere 18 EMC VNXe Series 3.1 Monitoring System Performance
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    CHAPTER 3 Monitor system performance using the CLI l Manage metrics service 20 l Manage metrics settings 21 l Manage historical metrics values 23 l Manage real-time metrics values 27 l The set action command 29 Monitor system performance using the CLI 19
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    values are not kept as long as low frequency (long interval) metrics. The following table lists the metrics service attributes: Table 5 Metrics service attributes Attribute History enabled History retention Description Indicates whether historical metrics collection is enabled. Value is one of the
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    -9-14 12:00:00 (300 sec), not available (3600 sec), not available (14400 sec) Configure metrics service Enable historical metrics collection. Format /metrics/service set -historyEnabled { yes | no } Note Only administrators are allowed to run this command. Action qualifiers Qualifier Description
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    network device. The metrics commands will accept a metric path with the * replaced by an object, and return only the result for the specified object. The set, and compound metrics. View metrics settings View information about supported metrics. Note Use the show action command to change the
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    system performance using the CLI Qualifier Description Note When typing metric paths, replace . with \., , with \, and \ with \\ in the object this switch displays all metrics. Example The following command displays the metrics service settings for the system: uemcli -d 10.0.0.1 -u Local/joe -p
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    ][ -flat ][ -summary ] Object qualifier Qualifier -path Description Specify a comma-separated list of metric paths. Note When typing metric paths, replace . with \., , with \, and \ with \\ in the object names. -interval Specify an interval for the metric values. Default interval is
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    Monitor system performance using the CLI Qualifier Description l SS - Second Note Ensure that the value is a time in the past. You can choose to specify just the date (in the YYYY-MM-DD format) or the time (in the HH:MM:SS format). If you do not specify the time, the system automatically uses 00:
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    Monitor system performance using the CLI uemcli -d 10.0.0.1 -u Local/joe -p MyPassword456! /metrics/value/hist -path sp.*.fs.filesystem.*.file.*.readBytes show -from "2012-07-08 12:17:30" -to "2012-07-08 12:19:30" -count 10 -interval 60 Storage system address: 10.0.0.1 Storage system port: 443
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    Monitor system performance using the CLI Qualifier Combination -to -from, -to, and count are not specified. Output Example: -to "20-09-20 12:00:00" Result: The result includes all samples from the timestamp of the earliest sample to the specified time.
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    Monitor system performance using the CLI Qualifier Description Note When typing metric paths, replace . with \., , with \, and \ with \\ in the object names. Action qualifier Qualifier Description -interval Specify an interval for the metric values. Default interval is seconds. -to
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    appears. Format set [] Example The following example uses the set action command to change the password for a user account. The path /user/account specifies that the object type is a user account. The -id object qualifier identifies local_user
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    Monitor system performance using the CLI 30 EMC VNXe Series 3.1 Monitoring System Performance
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    34 l Average Disk Queue Length (physical deployments only 34 l Average Disk Response Time (physical deployments only 34 l Average Disk Service Time (physical deployments only 35 l Total Disk Bandwidth (physical deployments only 36 l Total Disk Throughput/IOPS (physical deployments only 36
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    Reference FAST Cache Dirty Pages (physical deployments only) Ratio of dirty pages to total pages in the FAST Cache, expressed as a percent. Breakdown and filter categories The aggregated data can be broken down or filtered by the following category: This category... Storage Processor Groups or
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    Reference Average CIFS I/O Size Average size of CIFS I/O requests, in KB, across all ports in the storage system. Calculated as a weighted average, which gives more weight to the SP with the highest number of CIFS I/O requests. Breakdown and filter categories The aggregated data can be broken down
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    Reference Underpinning stat paths l sp.*.cifs.global.basic.reads l sp.*.cifs.global.basic.writes Average CPU Utilization Total amount of processing cycles, as a percentage, across all cores in the storage system SPs. Breakdown and filter categories The aggregated data can be broken down by or
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    Buses for transporting the network traffic. Underpinning stat paths l sp.*.physical.disk.*.responseTime l sp.*.physical.disk.*.totalCalls Average Disk Service Time (physical deployments only) Average time spent completing disk I/O requests, in microseconds, across all disks used in provisioned
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    Reference Total Disk Bandwidth (physical deployments only) Total amount of disk I/O requests, in KB/s, across all disks used in provisioned storage. Breakdown and filter categories The aggregated data can be broken down or filtered by the following categories: This category... Groups or filters
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    Reference Total Fibre Channel Bandwidth (physical deployments only) Total amount of Fibre Channel I/O requests, in KB/s, across all ports in the storage system. Breakdown and filter categories The aggregated data can be broken down or filtered by the following categories: This category... Port
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    Reference This category... Read/Write Groups or filters data by the... Traffic types: read I/O and write I/O. Underpinning stat paths l sp.*.storage.filesystem.*.readSizeAvg l sp.*.storage.filesystem.*.writeSizeAvg l sp.*.storage.filesystem.*.reads l sp.*.storage.filesystem.*.writes Total File
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    Reference Breakdown and filter categories The aggregated data can be broken down or filtered by the following categories: This category... Port Storage Processor Read/Write Groups or filters data by the... Target hardware ports for the network traffic. SPs that processed the network traffic.
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    Reference This category... Groups or filters data by the... Storage Resource Type Types of storage resources that generated the network traffic. Read/Write Traffic types: read I/O and write I/O. Underpinning stat paths l sp.*.storage.lun.*.avgReadSize l sp.*.storage.lun.*.avgWriteSize l sp.*.
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    Reference This category... Groups or filters data by the... Provisioning Type Types of provisioning used for the accessed storage. Storage Pool Storage pools against which this metric was tracked, including the FAST Cache. Storage Resource Storage resources that generated the network traffic
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    Reference This category... Port Storage Processor Read/Write Groups or filters data by the... Target hardware ports for the network traffic. SPs that processed the network traffic. Traffic types: read I/O and write I/O. Underpinning stat paths l sp.*.net.device.*.bytesOut l sp.*.net.device.*.
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    Reference Total NFS Bandwidth Total amount of NFS I/O requests, in KB/s, across all ports in the storage system. Breakdown and filter categories The aggregated data can be broken down or filtered by the following categories: This category... Storage Processor Read/Write Groups or filters data by
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    Reference 44 EMC VNXe Series 3.1 Monitoring System Performance
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EMC
®
VNXe
®
Series
Version 3.1
Monitoring System Performance
P/N 302-002-409 REV 02