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[#917] docs: Extend shard mode description

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Add shards detach details.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
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Dmitrii Stepanov 2024-01-30 18:32:55 +03:00
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docs/shard-modes.md
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@ -46,3 +46,9 @@ Shard can automatically switch to a `degraded-read-only` mode in 3 cases:
1. If the metabase was not available or couldn't be opened/initialized during shard startup.
2. If shard error counter exceeds threshold.
3. If the metabase couldn't be reopened during SIGHUP handling.
# Detach shard
To detach a shard use `frostfs-cli control shards detach` command. This command removes the shards from the storage
engine and closes all resources associated with the shards.
Limitation: `SIGHUP` or storage node restart lead to detached shard will be again online.