Today in #openzfsmastery: re-re-redrafted the section on block size, then discussed ashift autodetection, stripes, and mirrors.
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Finally getting back to my 72-disk draid bhyve VM for #openzfsmastery.
Turns out that setting ahci_device_limit="8" in the vm-bhyve config let it boot just fine.
Thank you everyone for your suggestions, but especially @dch for this one!
spent the day arguing with debian and bhyve. finally got to crack open the #openzfsmastery manuscript and discovered: my brain is done.
It's Friday. I'm gonna knock off a bit early, fold some laundry, do some dishes, and go to the dojo.
My boss is gonna hate it, but to hell with that guy.
I'm trying to test draid virtually for #openzfsmastery, because nobody's gonna give me a shelf of 60 disks to play with. I set everything up like:
disk35_name="disk35"
disk35_type="ahci-hd"
disk35_dev="sparse-zvol"
Seems that if I have 35 ahci-hd entries, disk0 through disk34, bhyve and freebsd works. At disk35, the host panics on boot.
Is this expected with bhyve? Or does FreeBSD need a special tweak with 36 disks?
"You’d expect that digital storage technologies like SSD and NVMe would have learned from past mistakes and chosen to be honest about the block sizes used internally, but vendors freely admit that they won’t tell you what’s actually going on inside the device and you should just trust the values they report because the truth would only make you sob." #openzfsmastery
Might be too honest but... I think I'll keep it.
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I freely concede that this is a threat model not covered in #openzfsmastery
Today's #60SecondsOfWIP is out! "A Special Uberblock."
https://mwl.io/archives/24577 or wherever podcasts are sold. #openzfsmastery
Michael W Lucas 
