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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. 1. If the metabase was not available or couldn't be opened/initialized during shard startup.
2. If shard error counter exceeds threshold. 2. If shard error counter exceeds threshold.
3. If the metabase couldn't be reopened during SIGHUP handling. 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.