On 04/29/2015 01:27 PM, Robert Mustacchi wrote:
On 4/29/15 10:24 , Joe Landman wrote:
[...]
This gets to another question: if an LX branded zone crashes (I've not
played with them much other than lighting a few up to play), can we turn
them off from the GZ, or do we need to reboot the whole machine? I
don't mind so much forcing the unmounting of the data set (zfs file
system), as most of the caching for the branded zone would be on SmartOS
anyway; e.g. we wouldn't have to worry about most of these:
What does it mean for a zone to crash? Linux's init process dies? The
applications you care about inside of it crash? The host panics?
Something else?
I am more worried about init process dying, or the zone "panic" than
anything else. If the application dies, I can do a simple restart, and
easily handle monitoring/controlling that.
I want to understand if the LX zone is better for this application than
running this as a KVM. I am concerned about storage IO and network
bandwidth, so I was hoping to avoid going through the emulation/KVM
layer. We are looking to the LX branded zone as a way around that,
quite cognizant of the potential risks.
KVM is better for isolation, and I've had little trouble rebooting
panic'ed Linux VMs in the past. I don't have nearly as much operational
experience with the LX branded zones, and while they are very intriguing
as a way to avoid the KVM, they may simply not be the right approach.
Thanks!
Robert
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Founder and CEO
Scalable Informatics, Inc.
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