What do you mean by AHCI SATA driver?
I need to change it from those in GA to Beta version?
I used the ESXi Customizer to add the sata driver (sata-xahci-1.10-1.x86_64.vib) to the esxi beta iso.
and install my 3 NUC from that custom iso.
Did many test and no problem so far.
ESXI 5.5 update 2 released!
Now VSAN works with GA.
Please note, that the controller is still NOT on the HCL.
That is great news! Time to retry that!
I ran into the same situation....the problem was that between HA trying to upgrade vCenter agent, configure HA and update the vSAN cluster, all resource utilization was killing the hostd process. When the hostd process is not able to maintain the ESXi OS/management services because it's "hung", you'll see that very same behavior. The fix was exactly what you said....moving the ESXi hosts out of the vSAN cluster and restarding them.
Anyone running this now with their onboard controller and Update 2? I've got multiple Shuttle SH87R6 with 1 each Kingston SSDNow V300 240GB SSD and 1.5TB 7200RPM HDD and VSAN finally configures properly, but the performance is painful. Under any load (<100 IOPs), the latency jumps to over 1.4 seconds in VSAN Observer. Running PernixData FVP on the same setup, accelerating my Synology DS412+ iSCSI datastore I was getting ~5000 IOPs per host without saturating the queue of the controller, so the "well your onboard controller has a very short queue depth" seems like it shouldn't be the culprit.
horriblevsanlatency.png 74.8 K
to thread starter,
sorry for interupting your thread. hope your problem fixed soon. can you guys see my thread and give me some basic answer. i dont have to much experiance on vmware vsan. below is my thread..
again apologies to thread started by requesting answer via your thread..
You have 2 problems:
1. Kingston SSDNow V300 it's а very slow ssd
2. ACHI queue depth - 32
Try to update to latest ESXi550-201410001 it has a ACHI-bug fix - VMware KB: VMware ESXi 5.5, Patch ESXi550-201410403-BG: Updates sata-ahci