Dell Unity: How to check Block Size (User Correctable)

Summary: How to identify the block size used to configure the storage resources accordingly for specific applications. The block size used varies by specific drive types.

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Instructions

Solid State Drives (SSD) use a block size of 520 bytes.
Serial Attached SCSI (SAS) uses a block size of 4160 bytes, which is equal to (8) 520-byte blocks.

To verify the block size from the Unity CLI, run the following command:
 

svc_diag -s sas | grep -A 1 "BLOCK SIZE |MMode"

 Example output:

output example

Affected Products

Dell EMC Unity
Article Properties
Article Number: 000268474
Article Type: How To
Last Modified: 17 Jan 2025
Version:  1
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