QNAP

QTS 5.0.x

Transfer Resources

In VJBOD Cloud, transfer resources correspond to data uploads and downloads. If VJBOD Cloud has 100 total transfer resources, that means the application can create 100 threads for uploading data to and downloading data from the cloud.

The total transfer resources allocated to VJBOD Cloud is determined by your NAS hardware. You can manage transfer resources by going to VJBOD Cloud > Transfer Resources.

Transfer Resource Allocation

By default, transfer resources are shared between all VJBOD Cloud volumes and LUNs. When a volume or LUN needs to upload to or download data from the cloud, VJBOD Cloud removes transfer resources from the shared transfer resource pool and temporarily allocates them to the volume or LUN, then returns them to the pool after the data transfer has finished.

A single volume or LUN may use a large number of shared transfer resources, stopping other volumes and LUNs from syncing data with the cloud. To prevent this you can reserve transfer resources for a volume or LUN, guaranteeing that those resources will always be available. You can also set a limit on the maximum number of transfer resources a volume or LUN can use.

Transfer Resource Usage Guidelines

Problem

Solution

VJBOD Cloud is taking a long time to sync data to the cloud.

Increase the total number of transfer resources allocated to VJBOD Cloud.

VJBOD Cloud is using too much NAS memory, CPU, or network bandwidth.

Decrease the total number of transfer resources allocated to VJBOD Cloud.

  • A VJBOD Cloud volume or LUN is taking a long time to sync data to the cloud.

  • A VJBOD Cloud volume or LUN contains important data, which should always be backed up before other volumes and LUN data.

Increase the transfer resources reserved for the volume or LUN.

A VJBOD Cloud volume or LUN is using too many transfer resources or too much network bandwidth.

Limit the maximum number of transfer resources the volume or LUN can use.

Configuring Total Transfer Resources

  1. Go to VJBOD Cloud > Transfer Resources.
  2. Under Total resources, specify the total number of transfer resources available to VJBOD Cloud.

    The minimum number is one. The maximum number is determined by your NAS hardware.

    Important:

    Total transfer resources must be greater than current reserved transfer resources.

  3. Click Apply.

Configuring Transfer Resources for a Volume or LUN

  1. Go to VJBOD Cloud > Transfer Resources.
  2. Under Cloud Volume/LUN Resources, locate a VJBOD Cloud volume or LUN.
  3. Configure any of the following settings.

    Setting

    Description

    Reserved

    The number of transfer resources reserved for this volume or LUN.

    Limit

    The maximum number of transfer resources this volume or LUN can use.

    Note:

    To set this value, Limitation Rule must be set to Limit.

    Limitation Rule

    Select one of the following rules:

    • Limit: The maximum number of transfer resources this volume or LUN can use is restricted. It can only use the number specified under Limit.

    • No Limit: The maximum number of transfer resources this volume or LUN can use is unrestricted. It can use all of its reserved resources and all shared transfer resources.

  4. Click Apply.