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Add a note for the disk removal rejection #921

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Add a note for the disk removal rejection #921

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9ad3783
Add a note for the disk removal rejection
martindekov Nov 18, 2025
bfd1047
Address feedback
martindekov Nov 18, 2025
e226c10
Address wording feedback
martindekov Nov 18, 2025
6709209
Add reference to lhv2 controller issue
martindekov Nov 18, 2025
28864be
Update disc to disk
martindekov Nov 19, 2025
1cfc334
Reword the longhorn issue as per feedback
martindekov Nov 20, 2025
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8 changes: 7 additions & 1 deletion docs/host/host.md
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Expand Up @@ -268,7 +268,13 @@ Before removing a disk, you must first evict Longhorn replicas on the disk.

:::note

The replica data would be rebuilt to another disk automatically to keep the high availability.
The replica data would be rebuilt to another disk automatically to keep the high availability. There is a known issue on v2 where single replicated volume will be attempted
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@w13915984028 w13915984028 Nov 21, 2025 •
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is this expanded note dedicated for head branch, or is also fit for existing ones like v1.6, v1.5? when true, please copy to them


:::

:::note

If disc contains last healthy replica of volume or backing image, disk removal will be rejected. In case a single replica of those objects was configured, move the replica to another disk or remove the objects altogether to acknowledge that you don't need them. In case there was fault in the replication, fix the faulty replicas on the other disks before proceeding with the deletion of the current one. There is a known issue with multiple [Longhorn V2](https://github.com/longhorn/longhorn/issues/12189) disks where removal of the disk containing single replica blank volume will be rejected if it was once attached to another disk.

:::

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