[#1121] docs: Change mode of shard components
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Signed-off-by: Alexander Chuprov <a.chuprov@yadro.com>
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@ -14,7 +14,16 @@ Each mode is characterized by two important properties:
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| `read-only` | Read-only mode, only read operations are allowed, metabase is available. |
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| `degraded` | Degraded mode in which metabase and write-cache is disabled. It shouldn't be used at all, because metabase can contain important indices, such as LOCK objects info and modifying operation in this mode can lead to unexpected behaviour. The purpose of this mode is to allow PUT/DELETE operations without the metabase if really necessary. |
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| `degraded-read-only` | Same as `degraded`, but with only read operations allowed. This mode is used during SSD replacement and/or when the metabase error counter exceeds threshold. |
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| `disabled` | Currently used only in config file to temporarily disable a shard. |
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| `disabled` | Currently used only in config file to temporarily disable a shard.
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## Shard and Component Status
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| Shard Mode | Metabase Mode | Blobstore Mode | Writecache Mode | Pilorama Mode | Blobovnicza Tree Mode | FSTree Mode |
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|-----------------------|---------------|----------------|-----------------|---------------|-----------------------|-------------|
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| `Read-Only` | READ_ONLY | READ_ONLY | READ_ONLY | READ_ONLY | READ_ONLY | READ_ONLY |
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| `Read-Write` | READ_WRITE | READ_WRITE | READ_WRITE | READ_WRITE | READ_WRITE | READ_WRITE |
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| `Degraded-Read-Write` | CLOSED | READ_WRITE | CLOSED | CLOSED | READ_WRITE | READ_WRITE |
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| `Degraded-Read-Only` | CLOSED | READ_ONLY | CLOSED | CLOSED | READ_ONLY | READ_ONLY |
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## Transition order
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