dsohayda
Enthusiast
Enthusiast

Lost access to volume...due to connectivity issues - on local SSD?

I'm running vSphere 6.7u3 on a 2013 Mac Pro with the original 1TB SSD, and I get a constant stream of these lost access to volume events quickly followed by 'successfully restored' messages seconds later.

I found similar threads around this issue that pointed towards the ahci driver being problematic; Lost access to volume … due to connectivity issues

I also found a blog posting from William Lam seeming to clear the ahci driver of all guilt after vSphere 6.5u1; https://www.virtuallyghetto.com/2017/07/ahci-vmw_ahci-performance-issue-resolved-in-esxi-6-5-update-...

Performance graphs are also showing this internal local SSD with what I consider extremely high read latency numbers as high as 2400ms with an average of 140ms! I expected much better from a local SSD especially when an iSCSI volume hosted on a low-end Synology is showing single digit latency numbers.

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tayfundeger
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