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What is the best practice on adding or removing drives from a cluster on Element?

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element-software
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solidfire
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Applies to

  • NetApp Element 
  • NetApp SF-Series
  • NetApp H-Series

Answer

Best Practices recommendations:

For Adding Drives:

  1. All Block drives should be added and block syncing complete before adding Slice drives.
    1. Element Software 10.x and beyond, it is recommended to add all block drives at once.
      1. This should be done for no more than 3 nodes at once.
    2. Element Software 9.x and prior, it is recommended to add 3 drives at a time allowing them to completely sync before adding the next group of 3.
 
For Removing Drives:
  1. The Slice drive should be removed and slice syncing complete before removing the block drives.
    1. All Block drives from a single node should be removed at one time.  All block syncing should be complete before moving on to the next node.