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Update 1.resource-preparations.md #741

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2 changes: 1 addition & 1 deletion docs-2.0/4.deployment-and-installation/1.resource-preparations.md
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Expand Up @@ -238,7 +238,7 @@ storaged进程的数量不会影响图空间副本的数量。
| 资源 |单位 | 计算公式 |说明|
|:--- |:---|:--- |:---|
| 硬盘空间 |Bytes| `点和边的总数` * `属性的平均字节大小` * 6 * 120% |-|
| 内存 |Bytes| [`点和边的总数` * 15 + `RocksDB实例数量` * (`write_buffer_size` * `max_write_buffer_number` + `块缓存大小`] * 120% |`write_buffer_size`和`max_write_buffer_number`是RocksDB内存相关参数，详情请参见[MemTable](https://github.com/facebook/rocksdb/wiki/MemTable)。块缓存大小请参见[Memory usage in RocksDB](https://github.com/facebook/rocksdb/wiki/Memory-usage-in-RocksDB#block-cache)。|
| 内存 |Bytes| [`点和边的总数` * 15 + `RocksDB实例数量` * (`write_buffer_size` * `max_write_buffer_number` + `块缓存大小`)] * 120% |`write_buffer_size`和`max_write_buffer_number`是RocksDB内存相关参数，详情请参见[MemTable](https://github.com/facebook/rocksdb/wiki/MemTable)。块缓存大小请参见[Memory usage in RocksDB](https://github.com/facebook/rocksdb/wiki/Memory-usage-in-RocksDB#block-cache)。|
| 分区数量 |-| `集群硬盘数量` * `disk_partition_num_multiplier` |`disk_partition_num_multiplier`是取值为2~10的一个整数，用于衡量硬盘性能。HDD使用2。|

- 问题 1：为什么磁盘空间和内存都要乘以120%？
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