Maciej Browarski wrote:
> Steffen Weiberle wrote:
>> Maciej Browarski wrote:
>>   
>>> Hello,
>>> Is possible that  OS GUEST  can  run  independently of OS HOST ?
>>> because I saw that when my OS HOST crashed and after reboot I see that 
>>> OS GUEST has normal Uptime.
>>> What conditions must occur  to  have OS GUEST  indepent of OS HOST ?
>>>  
>>> Regards  
>>>
>>>     
>> Not sure if I understand the question, and i'll try to answer what I 
>> think it is.
>>
>> With LDom later than 1.0.0, if the service domain goes down, the guest 
>> LDoms stay running but can't use the downed service domain's I/O. If 
>> there are two service domains configured, and the second is running, and 
>> the guest is (or guests are) configured to fail over I/O, they will not 
>> only continue to run, but also continue to have access to the outside world.
>>
>> I don't know how long a guest can stay running with its boot device not 
>> accessible. I can't think of a way to test this with only one service 
>> domain, since you will loose access to the guest's console as well.
>>
>> I ran a quick test. Using 1.0.2 (which is not available yet) and Solaris 
>> 10 update 5 build 10 in both the service and guest LDoms. A ping to the 
>> guest failed for about a minute, and started up again early during the 
>> reboot of the service domain. An ssh session stayed up.
>>
>> mtllab150 is the guest LDom. I did an 'init 6' in the service LDom.
>>
>> 11 bytes from mtllab150 (10.1.14.150): icmp_seq=7.
>> 11 bytes from mtllab150 (10.1.14.150): icmp_seq=8.
>> 11 bytes from mtllab150 (10.1.14.150): icmp_seq=9.
>> 11 bytes from mtllab150 (10.1.14.150): icmp_seq=65.
>> 11 bytes from mtllab150 (10.1.14.150): icmp_seq=66.
>> 11 bytes from mtllab150 (10.1.14.150): icmp_seq=67.
>>
>> Steffen
>>
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>>   
> Thanks for reply,
> So, if I can configure  guest  LDOMS to use direct hdd and network there 
> is chance that these LDOMS will be independent  from  service domain 
> ldoms. But  question is:
> Can I use  direct access to hardware without service domain like in 
> Dynamic Domains ?

No. I/O must go through a service domain.

See page 17 of the Beginners Guide at 
http://www.sun.com/blueprints/0207/820-0832.html

> Now I use nv_85 with LDOMS 1.0.2 
> 
> Regards
> Maciej
> 
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