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Dell PowerFlex 4.5.x Administration Guide

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Add storage data servers

Add storage data servers to the PowerFlex system.

Prerequisites

  • Ensure that at least one suitable storage pool is defined in the required protection domain.
  • All devices in a storage pool must be the same media type. Ensure that you know the type of devices you are adding to the system.
  • Ensure that the storage pool to which you are adding devices is configured to receive that media type.
  • If you want to add acceleration devices now, ensure that at least one acceleration pool is defined.

About this task

Device data is erased when devices are added to an SDS. When adding a device to an SDS, PowerFlex checks that the device is clear before adding it. If the device is not clear, an error is returned. A device that has been used in the past can be added to the SDS by using the Force Device Takeover option. When this option is used, any data that was previously saved on the device is erased.

You can assign a name to the SDS, as well as to the devices. This name can assist in future object identification. This can be particularly helpful for SDS devices, because the names remain constant, even if the path changes. SDS and device names must meet the following requirements:
  • Contains less than 32 characters
  • Contains only alphanumeric and punctuation characters
  • Is unique within the object type
NOTE:Devices can be tested before going online. Various testing options are available the Advanced area of the window (default: Test and Activate).
NOTE:Acceleration settings can be configured later from the Block > Acceleration Pools page.
NOTE:You cannot enable zero padding after adding the devices.

Steps

  1. On the menu bar, click Block > SDSs.
  2. Click + Add SDS.
  3. Configure the following settings:
    • Enter SDS name
    • Select a protection domain
    • Select a fault set
    • Enter SDS port used for communication
    • Enter the IP address for SDC, SDS or both and click Add IP.
  4. For additional IP addresses, enter the IP address, select the communication role and click Add IP.
  5. Expand Advanced for more options. Configure the following options (for advanced users):
    • To enable RMcache, select Use Read RAM Cache and enter the size in MB.
    • Click one of the options for Performance Profile: Compact or High.
    • To force clean a node, select Force Clean SDS.
  6. Click Add SDS.

Results

An SDS is added to the system.

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