OpenZFS looking for folk with LSI HBAs and SSD / NVMe drives

[Yorick]

From the OpenZFS meeting, they're looking for folk with LSI HBAs and "many" SSDs ... SATA or NVMe .. on FreeBSD, to discuss how TRIM works currently in FreeBSD. Tagging @Chris Moore - know anyone who'd fit the bill and wants to help OpenZFS with their TRIM implementation? The selfish motivator would be that FreeBSD is going to ZoF and will lose TRIM until it is implemented once more in ZoL, and that's not going to happen until some "hard data" have been collected.

Relevant section from the meeting notes:

• TRIM Support:
• • Currently two implementations. One already merged in FreeBSD and another one in PRs to illumos and Linux originating from Nexenta.
  • FreeBSD users have seen some performance improvements. Same for some Nexenta folks.
  • The common pattern being that this is very vendor specific and having TRIM on can boost or degrade performance.
  • The complexity that the TRIM change introduces is fairly significant at the same time, so hard evidence is needed to convince going through with those PRs.
  • Conclusion: We can continue with this once we have some hard data on its behavior and how it helps from existing users of TRIM.
• Anyone using LSI HBAs with many SSDs or NVMes on FreeBSD contact allan@klarasystems.com