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HDDS-14167. Document OM migration approaches#406

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jojochuang:HDDS-14167
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HDDS-14167. Document OM migration approaches#406
jojochuang wants to merge 1 commit intoapache:masterfrom
jojochuang:HDDS-14167

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What changes were proposed in this pull request?

HDDS-14167. Document OM migration approaches

Please describe your PR in detail:

  • Add Administrator Guide page comparing configuration-based vs DNS-based OM migration (pros, cons, DNS TTL, hosts files, leader election risks). Link from OM decommission and Core Concepts OM HA. Add cutover to cspell.

Made-with: Cursor

What is the link to the Apache Jira?

https://issues.apache.org/jira/browse/HDDS-14167

How was this patch tested?

Please explain how this patch was tested. In most cases this will just be checking the local preview of the website, but existing CI checks should also pass.

Screenshot 2026-04-23 at 12 30 13 PM

Add Administrator Guide page comparing configuration-based vs DNS-based
OM migration (pros, cons, DNS TTL, hosts files, leader election risks).
Link from OM decommission and Core Concepts OM HA. Add cutover to cspell.

Made-with: Cursor
@jojochuang jojochuang requested a review from ivandika3 April 23, 2026 19:30
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