磁盘驱动器(SSD)和卷的块大小如何？

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Category:: e-series-systems

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适用场景

E系列(EF300/EF600/E2800)
SANtricity 11.70或更高版本

问题解答

磁盘驱动器

SAS驱动器：大小可以是512字节或4 KB，具体取决于磁盘型号

示例 (Storage Array Profile log)：

Media type: Hard Disk Drive Interface type: SAS Speed: 10,500 RPM Current data rate: 12 Gbps Logical sector size: 512 bytes Physical sector size: 512 bytes Product ID: ST1200MM0009 Drive Firmware: MS02 Serial number: WFK88RB90000K101ALHL Manufacturer: SEAGATE Date of manufacture: July 21, 2020

Media type: Hard Disk Drive Interface type: SAS Speed: 10,500 RPM Current data rate: 12 Gbps Logical sector size: 512 bytes Physical sector size: 4096 bytes Product ID: ST1800MM0129 Drive Firmware: NE03

固态磁盘(SSD)
- SAS类型：4 KB
- NVMe类型：4 KB

示例：

Drive media type: Solid State Disk

Drive interface type: NVMe

Physical block size: 4,096 bytes

Logical sector size: 512 bytes

Shelf loss protection: No

  Media type:           Solid State Disk   
    Interface type:         SAS         
     Drive path redundancy:      OK           
       
     Current data rate:        12 Gbps        
     Logical sector size:       512 bytes       
    Physical sector size:      4096 bytes

卷

默认情况下：
- 采用FC类型的EF300和EF600为4K
- 采用iSCSI类型的EF300和EF600为512字节
- E2800为512字节
512字节和4 KB均受支持、并可通过命令行界面进行配置
只有采用FC型号的EF300和EF600才能 [1] 在创建卷时使用GUI功能配置卷块大小。

卷块size.png

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