How is the block size for disk drive (SSD/SAS) and volume?

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Category:: e-series-systems

Specialty:: esg

Last Updated:

Applies to

E-Series (EF300/EF600/E2800)
SANtricity 11.70 or later

Answer

Disk Drive

SAS drive: The size can be either 512 bytes or 4KB, depending on the disk model

Example (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

Solid State Disk (SSD)
- SAS-type: 4KB
- NVMe-type: 4KB

Example:

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

Volume

By default:
- EF300 and EF600 with FC-type is 4K
- EF300 and EF600 with iSCSI-type is 512 bytes
- E2800 is 512 bytes
Both 512 bytes and 4KB are supported and configurable by CLI
Only EF300 and EF600 with FC-model can use GUI feature to configure Volume Block Size while creating volume.

volume block size.png

Additional Information

additionalInformation_text