Re: what happened to /dev/xvdd in my instance?
in 4.8, it's VDC that is "reserved" / missing
virsh dumpxml i-2-5748-VM | grep vd
<target dev='vda' bus='virtio'/>
<target dev='vdb' bus='virtio'/>
<target dev='vdd' bus='virtio'/>
<target dev='vde' bus='virtio'/>
<target dev='vdf' bus='virtio'/>
On Thu, 6 Dec 2018 at 18:45, Andrija Panic <andrija.panic@xxxxxxxxx> wrote:
> That's a funny - and true observation - I also reproduced the same -
> during hotpluging disks, and also during booting instance with already
> attached disks - BUT inside VM, there are vda, vdb, vdc, vdd disks (no vde,
> as can be seen in VM XML)
> I though it might had something to do with ISO files, but these are (as it
> seems) always attached as IDE (sdc in my case/test).
> I'm still assuming this is done due to some reservations
> On Thu, 6 Dec 2018 at 18:25, Yiping Zhang <yzhang@xxxxxxxxxxx> wrote:
>> Hi, All:
>> I am working on a script to handle data disks. So, I added a few data
>> disks to my instance. Then I noticed that in listVolumes api output, the
>> third data disk actually has a deviceid 4, instead of 3 as I would expect.
>> Sure enough, in the guest OS, I see three data disks as /dev/xvdb,
>> /dev/xvdc, and /dev/xvde. There is no device /dev/xvdd.
>> Why does CloudStack skip device /dev/xvdd? I have verified this behavior
>> on both ACS versions 22.214.171.124 and 126.96.36.199.
> Andrija Panić