[CentOS] Centos 7 RAID tutorial?

[Dave Stevens]

Quoting Digimer <lists at alteeve.ca>:

> On 10/09/14 06:45 PM, Dave Stevens wrote:
>> Quoting Digimer <lists at alteeve.ca>:
>>
>>> On 10/09/14 05:35 PM, Eliezer Croitoru wrote:
>>>> On 09/10/2014 02:33 AM, Digimer wrote:
>>>>> The problem with ZFS on linux is license related more than technical.
>>>> It exists for ubutnu so I can use it from a ppa for testing.
>>>> I would like to understand more about this license issue.
>>>> If you can sound me with more about it will help me understand the
>>>> issue.
>>>>
>>>> Thanks,
>>>> Eliezer
>>>
>>> http://zfsonlinux.org/faq.html#WhatAboutTheLicensingIssue
>>>
>>> https://en.wikipedia.org/wiki/ZFS#Linux
>>>
>>> --
>>> Digimer
>>> Papers and Projects: https://alteeve.ca/w/
>>> What if the cure for cancer is trapped in the mind of a person without
>>> access to education?
>>> _______________________________________________
>>> CentOS mailing list
>>> CentOS at centos.org
>>> http://lists.centos.org/mailman/listinfo/centos
>>>
>>
>> Dear All,
>>
>> This list reminds me of the wizards in the Terry Pratchett novels -
>> confronted with a need to take action they would by far rather discuss
>> all possibilities, however remote, than address the need in a simple
>> way, after all  they're WIZARDS.
>>
>> The discussion has been pretty interesting, I've figured out what I
>> wanted to know through other means.
>>
>> Thanks for the perspectives.
>>
>> Dave
>
> Hi Dave,
>
>   I can understand your feeling, but I need to say that "storage",  
> as a topic, is a very big one. People form entire careers around the  
> topic. So when discussing storage without a specific context,  
> conversations like this are inevitable.
>
>   All the points that have been made in this thread are valid and  
> important. So I suppose the better thing would be, if you were still  
> looking for answers, would be to ask the question with a particular  
> use-case in mind. That would allow people to stay more focused in  
> their answers.
>
> Cheers!
>
> digimer

Quoting Digimer <lists at alteeve.ca>:

> On 10/09/14 06:45 PM, Dave Stevens wrote:
>> Quoting Digimer <lists at alteeve.ca>:
>>
>>> On 10/09/14 05:35 PM, Eliezer Croitoru wrote:
>>>> On 09/10/2014 02:33 AM, Digimer wrote:
>>>>> The problem with ZFS on linux is license related more than technical.
>>>> It exists for ubutnu so I can use it from a ppa for testing.
>>>> I would like to understand more about this license issue.
>>>> If you can sound me with more about it will help me understand the
>>>> issue.
>>>>
>>>> Thanks,
>>>> Eliezer
>>>
>>> http://zfsonlinux.org/faq.html#WhatAboutTheLicensingIssue
>>>
>>> https://en.wikipedia.org/wiki/ZFS#Linux
>>>
>>> --
>>> Digimer
>>> Papers and Projects: https://alteeve.ca/w/
>>> What if the cure for cancer is trapped in the mind of a person without
>>> access to education?
>>> _______________________________________________
>>> CentOS mailing list
>>> CentOS at centos.org
>>> http://lists.centos.org/mailman/listinfo/centos
>>>
>>
>> Dear All,
>>
>> This list reminds me of the wizards in the Terry Pratchett novels -
>> confronted with a need to take action they would by far rather discuss
>> all possibilities, however remote, than address the need in a simple
>> way, after all  they're WIZARDS.
>>
>> The discussion has been pretty interesting, I've figured out what I
>> wanted to know through other means.
>>
>> Thanks for the perspectives.
>>
>> Dave
>
> Hi Dave,
>
>   I can understand your feeling, but I need to say that "storage",  
> as a topic, is a very big one. People form entire careers around the  
> topic. So when discussing storage without a specific context,  
> conversations like this are inevitable.
>
>   All the points that have been made in this thread are valid and  
> important. So I suppose the better thing would be, if you were still  
> looking for answers, would be to ask the question with a particular  
> use-case in mind. That would allow people to stay more focused in  
> their answers.
>
> Cheers!
>
> digimer
>


Ok, maybe one more. I manage a server with CentOS 5.10 that has a raid  
10 array with a hot spare. It was well set up by someone else and has  
worked very well. It also has a Xen kernel and several VMs, also all  
working well.

The age of the OS and accumulated cruft in the application side,  
together with the absence of the person who did the original setup,  
have me thinking about a new clean install - first on a transitional  
box for continuity, then a new config on the current hardware with the  
same basic design but more up-to-date; we are now a long way from  
version 5.3.

I had seen reference to a much improved raid installation procedure in  
version 7. I can now confirm that the process is indeed much simpler  
and so I have been able to get on with performance testing in various  
scenarios, which was what I wanted to do. My experience has been that  
of you want a tutorial on any topic the internet is flooded with the.  
But I didn't see one for this topic, so I thought a routine query on  
this list would get me a starting point.

That didn't exactly happen. But there's lots of food for thought in  
the answers I got and I'll be able to take at least some of that  
forward. And if I'm motivated enough may I'LL make the tutorial!

Dave

> -- 
> Digimer
> Papers and Projects: https://alteeve.ca/w/
> What if the cure for cancer is trapped in the mind of a person  
> without access to education?
>



-- 
We hang petty thieves and appoint great ones to office

-- Aesop


>
> -- 
> Digimer
> Papers and Projects: https://alteeve.ca/w/
> What if the cure for cancer is trapped in the mind of a person  
> without access to education?
>



-- 
We hang petty thieves and appoint great ones to office

-- Aesop