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What does rdm on a timer mean

Author

Mia Horton

Updated on December 28, 2025

What does RDM mean on a light timer?

Showing 1-2 of 2 answers. Hi Oletha, thank you for your question. The RDM (Random) means that the timer will operate randomly as programmed.

What does RDM mean on power strip?

For those of you who are still unaware, and hopefully that’s very few of you, RDM (Remote Device Management) is a lighting control protocol which allows so called ‘controllers’ and ‘responders’ to talk to each other, passing useful lighting orientated messages backwards and forwards with the intention of making the …

How do I reset my digital timer?

Use a pen or pencil to press and hold the manufacturer reset button (R) to reset the outlet. If the display on your timer outlet does not appear, plug the timer outlet into a powered electrical socket and allow it to charge for at least one hour. NOTE: The display may be on when you first receive your timer outlet.

What does auto mean on a digital timer?

“Auto on” means that the timer is still following what it is scheduled to do. “On” means that the timer is not following what it is scheduled to do. If you turn the lamp switch off, the lamp will just stay off no matter what mode you are in.

What is RDM in network?

Remote Device Management (RDM) is a protocol enhancement to USITT DMX512 that allows bi-directional communication between a lighting or system controller and attached RDM compliant devices over a standard DMX line. … 20, Remote Device Management Over DMX512 Networks.

What does RDM mean?

RDM
AcronymDefinition
RDMRemote Device Management (protocol used in theatre lighting equipment)
RDMReduced Diameter Mast (windsurfing)
RDMRadiation Detection and Measurement
RDMRecoil Distance Method

How do you set the outdoor lighting timer for Daylight Savings spring?

Video: How to Adjust Your Analog Landscape Lighting Timer for…
  1. Step 1: Locate Your Transformer. …
  2. Step 2: Find the Current Time of Day. …
  3. Step 3: Turn the Dial to the Current Time or Ahead One Hour. …
  4. Step 4: Test it Out (optional)

Can we take snapshots with RDM?

The RDM can use snapshots. In the physical compatibility mode, the RDM offers direct access to the SCSI device for those applications that require lower-level control.

What is RDM backup?

RDMs allow a special file in a VMFS volume to act as a proxy for a storage resource. The logical unit number, or LUN, that is a candidate for an RDM is attached to an individual VM; rather than formatted for the entire cluster.

How do I convert RDM to VMDK?

To convert RDM to VMDK, You can use the Advanced option in Storage vMotion ->Change the disk format as “Thin or Thick” from the disk format drop down for the RDM disk, select the destination datastore and proceed with the storage vMotion. Once storage vMotion is completed, virtual RDM disk will be converted to VMDK.

How do I expand my RDM disk?

To safely expand the RDM:
  1. Expand the RDM LUN from the SAN side. …
  2. Perform rescan on the ESX and verify the new LUN size is observed.
  3. svMotion the RDM pointer files or recreate the RDM mapping with the following steps to update the mapped disk size: …
  4. Perform a re-scan from the guest operating system.

Can you vMotion a VM with physical RDM?

Physical mode RDM data can be migrated to VMDK disks only through cold migration. … If you are attempting a Storage vMotion of a virtual mode RDM using the Advanced method, and the RDM pointer mapping file is already present in the target datastore, the Storage vMotion finishes quickly, but without moving the data.

How do I change RDM from physical to virtual?

Right-click the Node A virtual machine and click Edit Settings. Add the RDM to the virtual machine as a new disk and select virtual compatibility mode (the naming of this option depends on the Esxi/Vcenter version used).

How do I remove RDM from virtual machine?

Remove the RDM from the virtual machine:
  1. Click Edit Settings.
  2. Select the RDM hard disk.
  3. Click Remove. Select Delete from disk if it is not already selected.
  4. Click OK.

What is RDM VMDK?

First, let’s look at the nature of each option: VMDK—This is a file that appears as a hard drive to the guest operating system. Essentially, it is a virtual hard drive. RDM—This is also known as a pass-thru disk, and is a mapping file that acts as a proxy for a physical device such as a LUN.

Why RDM is used in VMware?

In other words, RDM allows VMs to bypass VMFS—VMware’s default storage management interface—and access the storage device directly. This way, an RDM acts as a proxy for a raw LUN residing in a VMFS volume. … With an RDM in place, any VM within the cluster can access the storage array, just like any other disk.

What is the difference between physical and virtual RDM?

Virtual mode is more portable across storage hardware than physical mode, presenting the same behavior as a virtual disk file. You can use this mode for both Cluster-in-a-box and cluster-across-boxes. To expand the size of the RDM, see Expanding the size of a Raw Device Mapping (RDM) (1007021).

What is the difference between RDM and VMDK?

VMDK—This is a file that appears as a hard drive to the guest operating system. Essentially, it is a virtual hard drive. RDM—This is also known as a pass-thru disk, and is a mapping file that acts as a proxy for a physical device such as a LUN.