On Sat, 20 Jun 2020, Wanpeng Qian wrote:
On Fri, 19 Jun 2020, Rob Roy Gregg wrote:
FreeBSD Friends,
I tried the forums and thought I'd ask here next; here's the thread:
https://forums.freebsd.org/threads/can-bhyve-pass-disk-vendor-model-and-serial-values-to-guests.75851/
This is on 12.1-RELEASE-p6.
Can bhyve pass disks to guests in a way that preserves the disk's
actual vendor, model and serial values (as viewed from inside of the guest)?
Here's how a passed-in disk looks inside the guest with ahci-hd
emulation:
linux_in_bhyve# lsblk --output vendor,model,serial /dev/sda
VENDOR MODEL SERIAL
ATA BHYVE SATA DISK BHYVE-FC87-ABA5-711B
And with virtio-blk emulation:
linux_in_bhyve# lsblk -o vendor,model,serial /dev/vdb
VENDOR MODEL SERIAL
0x1af4
Meanwhile, a similar disk configured on ESXi 5.5 U3b as a
"pass-through RDM" looks like this; this is what I'd like to see in
the bhyve guest also:
linux_in_esxi# lsblk -o vendor,model,serial /dev/sdb
VENDOR MODEL SERIAL
HITACHI OPEN-V-CM 60060e801602a100000102a100000bba
Thank you!
Hi Gregg
There is a patch for this, but you have to apply manually for 12.1R
You can get it here
https://reviews.freebsd.org/D24174
Wanpeng, thank you!
I installed FreeBSD-13.0-CURRENT-amd64-20200709-r363032-disc1.iso, applied
your patch, and used this vm-bhyve config:
disk1_type="ahci-hd"
disk1_name="/dev/da4,ser=410109,model=OPEN-V-CM"
disk1_dev="custom"
Which made this bhyve argument:
-s 5:0,ahci-hd,/dev/da4,ser=410109,model=OPEN-V-CM
Which made the disk look like this in the guest:
linux_in_bhyve# lsblk --output vendor,model,serial /dev/sda
VENDOR MODEL SERIAL
ATA OPEN-V-CM 410109
This is really neat. Thanks for your patch.
Unfortunately, the software I'm using checks both the vendor and model
fields.
I think it's happy with the model field now, but it's seeing "ATA" for the
vendor and it wants "HITACHI."
I'm guessing that ATA itself may not really support this vendor field. I
noticed that the ESXi VM has a virtual SCSI HBA instead.
Do you know how I can make this disk's vendor field "HITACHI" instead of
"ATA," in a bhyve guest?
Thank you again for your patch Wanpeng.
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