ZFS Slow Write Speeds on OpenSUSE Tumbleweed

Troubleshooting Slow Write Speeds on ZFS with OpenSUSE Tumbleweed on a T430 Server

Abstract: Experiencing slow write speeds on ZFS with OpenSUSE Tumbleweed on a T430 server using SAS ST6000NM0034-6TB 7.2KRPM drives in a RAIDZ-2 dataset with encryption? Learn how to troubleshoot this issue.

Created: 2025-02-15 by UserComp.com Editors

Slow Write on ZFS OpenSolaris T430 Server with 8x SAS ST6000NM00346 TB 7.2K RPM Drives

I have set up ZFS OpenSolaris T430 server using 8x SAS ST6000NM00346 TB 7.2K RPM drives. ZFS spool setup RAIDZ-2 dataset encryption. I am getting slow write speeds...

Detailed Context

This issue may be due to several reasons such as drive performance, ZFS configuration, or encryption overhead. To troubleshoot, I recommend checking the following:

Check the drive performance using iostat or dstat.
Verify the ZFS configuration for optimal performance.
Consider disabling dataset encryption if it's not critical for your use case.
Update the ZFS driver to the latest version.
Check for any software or firmware updates for the T430 server and the SAS drives.

Code Blocks


// Example iostat command
iostat -dxm 5

// Example dstat command
dstat -d -n 5

References

Book: "ZFS: The Definitive Guide" by Matt Ahrens
Article: ZFS FAQ
Online Resource: OpenZFS Documentation

Tags: ZFS OpenSUSE Tumbleweed T430 Server RAID Data Encryption

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