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    Reference

    Historical metrics

    The following historical performance metrics are available and can be viewed and managed in both Unisphere and the CLI.

    The currently available real-time metrics can be viewed and managed in the CLI only.

    Cache Dirty Size (physical deployments only)

    Total amount of data in the write cache, in MB, that has not yet been flushed out to disks.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following category:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    Cache Read Hit IOPS

    Total number of read I/O requests, in I/O per second, passing through, that is, not served by cache. If the FAST Cache is configured, this metric includes I/O requests passing through the FAST Cache.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following category:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    Cache Read Miss IOPS

    Total number of read I/O requests, in I/O per second, passing through, that is, not served by cache. If the FAST Cache is configured, this metric includes I/O requests passing through the FAST Cache.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following category:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    Cache Write Hit IOPS

    Total number of write I/O requests, in I/O per second, that do not demand a new allocation of cache memory. If the FAST Cache is configured, this metric includes I/O requests passing through the FAST Cache.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following category:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    Cache Write Miss IOPS

    Total number of write I/O requests, in I/O per second, that demand a new allocation of cache memory. If the FAST Cache is configured, this metric includes I/O requests passing through the FAST Cache.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following category:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    FAST Cache Dirty Ratio (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...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    CIFS Bandwidth

    Total amount of CIFS (SMB) 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...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    CIFS I/O Size

    Average size of CIFS (SMB) 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 by or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    CIFS IOPS

    Total number of CIFS (SMB) I/O requests, in I/O per second, 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...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    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...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    NFS IOPS

    Total number of NFS I/O requests, in I/O per second, 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...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    NFS I/O Size

    Average size of NFS 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 NFS I/O requests.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    System File System Bandwidth

    Total amount of file system I/O requests, in KB/s, across all file systems in the storage system.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    File System Bandwidth

    Total amount of file system I/O requests, in KB/s, for the selected file system or file systems.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    System File System I/O Size

    Average size of file system I/O requests, in KB, across all file systems in the storage system. Calculated as a weighted average, which gives more weight to the file systems with the highest number of I/O requests.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    File System I/O Size

    Average size of file system I/O requests, in KB, for the selected file systems or file systems. Calculated as a weighted average, which gives more weight to the file systems with the highest number of I/O requests.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    System File System IOPS

    Total number of file system I/O requests, in I/O per second, across all file systems in the storage system.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    File System IOPS

    Total number of file system I/O requests, in I/O per second, for the selected file system or file systems.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    LUN Bandwidth (System)

    Total amount of LUN I/O requests, in KB/s, across all LUNs in the storage system.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    LUN Bandwidth

    Total amount of LUN I/O requests, in KB/s, for the selected LUN or LUNs.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    LUN I/O Size (System)

    Average size of LUN I/O requests, in KB, across all LUNs in the storage system. Calculated as a weighted average, which gives more weight to the LUNs with the highest number of I/O requests.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    LUN I/O Size

    Average size of LUN I/O requests, in KB/s, for the selected LUN or LUNs.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    LUN IOPS (System)

    Total amount of LUN I/O requests, in I/O per second, across all LUNs in the storage system.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    LUN IOPS

    Total amount of LUN I/O requests, in I/O per second, for the selected LUN or LUNs.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    LUN Queue Length (System)

    Average number of LUN I/O requests in the system queue, in counts per second, across all LUNs in the storage system. Calculated as a weighted average, which gives more weight to the LUNs with the highest number of I/O requests.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    LUN Queue Length

    Average number of LUN I/O requests in the system queue, in counts per second, for the selected LUN or LUNs.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    LUN Response Time (System)

    Average time spent completing LUN I/O requests, in microseconds, across all LUNs in the storage system. Calculated as a weighted average, which gives more weight to the LUNs with the highest number of I/O requests.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    LUN Response Time

    Average time spent completing LUN I/O requests, in microseconds, for the selected LUNs in the storage system. Calculated as a weighted average, which gives more weight to the LUNs with the highest number of I/O requests.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    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 filtered by the following category:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    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...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    Fibre Channel IOPS (physical deployments only)

    Total number of Fibre Channel I/O requests, in I/O per second, 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...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    Fibre Channel Port Bandwidth (physical deployments only)

    Total amount of Fibre Channel I/O requests, in KB/s, for the selected Storage Processors and associated Fibre Channel ports.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Read/Write
    Traffic types: read I/O and write I/O.

    Fibre Channel Port IOPS (physical deployments only)

    Total number of Fibre Channel I/O requests, in I/O per second, for the selected Storage Processors and associated Fibre Channel ports.
    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Read/Write
    Traffic types: read I/O and write I/O.

    iSCSI Bandwidth

    Total amount of iSCSI 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...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    iSCSI IOPS

    Total number of iSCSI I/O requests, in I/O per second, 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...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    iSCSI Interface Bandwidth

    Total amount of iSCSI I/O requests, in KB/s, for the selected iSCSI interfaces.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Read/Write
    Traffic types: read I/O and write I/O.

    iSCSI Interface IOPS

    Total number of iSCSI I/O requests, in I/O per second, for the selected iSCSI interfaces.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Read/Write
    Traffic types: read I/O and write I/O.

    Ethernet Bandwidth

    Total amount of Ethernet I/O requests, in KB/s, across all non-management Ethernet ports in the storage system.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    Ethernet Packets

    Total amount of Ethernet I/O requests, in I/O per second, across all non-management Ethernet ports in the storage system.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    Ethernet Port Bandwidth

    Total amount of Ethernet I/O requests, in KB/s, for the selected Storage Processors and associated Ethernet ports.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Read/Write
    Traffic types: read I/O and write I/O.

    Ethernet Port Packets

    Total amount of Ethernet I/O requests, in I/O per second, for the selected Storage Processors and associated Ethernet ports.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Read/Write
    Traffic types: read I/O and write I/O.

    Disk Bandwidth (physical deployments only)

    Total amount of disk I/O requests, in KB/s, for the selected 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 data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    Disk IOPS (physical deployments only)

    Total number of disk I/O requests, in I/O per second, for the selected 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 data by the...
    Storage Processor
    SPs that processed the network traffic.
    Read/Write
    Traffic types: read I/O and write I/O.

    Disk Queue Length (physical deployments only)

    Average number of disk I/O requests in the system queue, in counts per second, for the selected disks used in provisioned storage. Calculated as a weighted average, which gives more weight to the disks with the highest number of I/O requests.

    Breakdown and filter categories

    The aggregated data can be broken down by or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    Disk Response Time (physical deployments only)

    Average time spent completing disk I/O requests, in microseconds, for the selected disks used in provisioned storage, including time spent in the queue. Calculated as a weighted average, which gives more weight to the disks with the highest number of I/O requests.

    The assumptions the system makes when calculating the average disk response time may not hold true for bursty traffic.
    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.

    Disk Service Time (physical deployments only)

    Average time spent completing disk I/O requests, in microseconds, for the selected disks used in provisioned storage, not including time spent in the queue. Calculated as a weighted average, which gives more weight to the disks with the highest number of I/O requests.

    Breakdown and filter categories

    The aggregated data can be broken down or filtered by the following categories:

    This category...
    Groups or filters data by the...
    Storage Processor
    SPs that processed the network traffic.