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Checking protocol settings on the storage system

You can check that a performance issue is not related to protocol settings on your storage system. If the settings are the issue, you can take corrective action and then verify that the performance issue is resolved.

  • Checking the NFS TCP maximum transfer size
    For NFS, you can check whether the TCP maximum transfer size for reads and writes might be causing a performance issue. If you think the size is slowing performance, you can increase it.
  • Checking the iSCSI TCP read/write size
    For iSCSI, you can check the TCP read/write size to determine if the size setting is creating a performance issue. If the size is the source of an issue, you can correct it.
  • Checking the CIFS multiplex settings
    If slow CIFS network performance causes a performance issue, you can modify the multiplex settings to improve and correct it.
  • Checking the FC adapter port speed
    The adapter target port speed should match the speed of the device to which it connects, to optimize performance. If the port is set to autonegotiation, it can take longer to reconnect after a takeover and giveback or other interruption.