I'm seeing very poor performance from Tiered Storage Spaces, hoping someone can help idendity what I am doing wrong. I have 2x256GB SSDs and 2x2TB HDDs. Individual drives perform as expected My previous experience is that a two drive tiered storage space performs nearly as well as the SSD used in the tier I am able to create tiered storage spaces with two or four drives. Performance for two drive and four drive configurations is slightly better than the HDD performance and far from the SSD performance I'm using DISKSPD.EXE to measure performance The relevant informantion is listed below, let me know if there is anything other information that may be helpful. Thanks for taking a look. -Rob Performance Summary Media MiBS IOPS HDD 1.2 154 SSD 172 22,000 Tiered 3.1 408 Storage Media Performance of Individual Drives Create Two Drive Pool and Storage Tiers Create Virtual Disk and Volume Performance of Two Drive Storage Space

Storage Spaces Tiering Performance Problem

Rob Cowlthorp 20

I'm seeing very poor performance from Tiered Storage Spaces, hoping someone can help idendity what I am doing wrong.

I have 2x256GB SSDs and 2x2TB HDDs.
Individual drives perform as expected
My previous experience is that a two drive tiered storage space performs nearly as well as the SSD used in the tier
I am able to create tiered storage spaces with two or four drives.
Performance for two drive and four drive configurations is slightly better than the HDD performance and far from the SSD performance
I'm using DISKSPD.EXE to measure performance

The relevant informantion is listed below, let me know if there is anything other information that may be helpful. Thanks for taking a look.

-Rob

Performance Summary