[Info-vax] VMware

[Grant Taylor]

On 12/9/19 8:24 PM, Dave Froble wrote:
> But, I have to ask, how do they run all those instances.  It seems to me 
> that it would be an operations nightmare.  I'm guessing they use SANs so 
> backup would not be such an issue.  But other operations?

It really depends what those instances are.  I don't think it's 
difficult to get 100 VMs on a single host, assuming it's got enough 
resources and that the VMs are small enough.  10 such hosts in a cluster 
is not a problem.  That's 1,000 instances.  More such hosts and VMs is 
not difficult.

SAN LUNs are not a backup any more than shadow disks are a backup.  Nor 
is RAID a backup.  Data corruption is a thing.  You need actual backups 
if you care about the data.

If the instances are Virtual Desktop Infrastructure that's accessed by 
end users, then chances are good that the VDI instances are almost 
cookie cutter installs and can be replaced at a moments notice.  End 
users are advised to save data in a location that's not part of the 
VDI's disk that can get replaced.

Yes, there's operational headaches.  But there's quite a bit of 
automation to streamline that.  If a VDI instance fails automation, 
replace it with a new copy that passes automation.



-- 
Grant. . . .
unix || die