storage hotpluggable property

[Dave Allan]

David Zeuthen wrote:
> Hey Dave,
> 
> On Fri, 2009-10-16 at 13:34 -0400, Dave Allan wrote:
>> Hi All,
>>
>> I'm working on libvirt replacing the current HAL based device 
>> enumeration with libudev based enumeration, and there doesn't seem to be 
>> an equivalent of the HAL storage hotpluggable property in libudev.  My 
>> sense is that the hotpluggable property is obsolete.  Is that correct?
> 
> Yeah, whether something is hotpluggable or not doesn't make a lot of
> sense with SATA and other stuff being so widely used (and, mind you,
> there is no way to automagically determine if a disk is connected via
> eSATA or SATA).
> 
> Anyway, DKD exports a property called is-system-internal that is
> intended to be used for conveying whether a certain disk is considered
> "part of the system" (e.g. contains root filesystems and other bits
> needed for the system to function). Right now I believe the property is
> hard-coded (set to TRUE unless the disk is connected via USB, Firewire
> or SDIO/Memstick buses) but in the future admins could set it via udev
> rules and/or users could tweak the value via Palimpsest or something.
> 
> FWIW, we use is-system-internal only to determine what authorization is
> required for the user to mount/change the disk - system-internal disks
> normally requires administrator authentication.
> 
> So is-system-internal and is-hotpluggable aren't terribly interesting
> properties. What were you using is-hotpluggable for?

Hi David,

Thanks for the info.  I don't know of anyone actually using it.  I'm 
trying to provide all the properties that HAL did, but it seems like 
this is one of those things that isn't needed going forward.

Dave