[CentOS] Re: Anaconda doesn't support raid10
Ruslan Sivak
rsivak at istandfor.com
Mon May 7 22:54:01 UTC 2007
Scott Silva wrote:
> Ruslan Sivak spake the following on 5/7/2007 2:22 PM:
>
>> Stephen John Smoogen wrote:
>>
>>> On 5/7/07, Ruslan Sivak
>>> <rsivak at istandfor.com> wrote:
>>>
>>>> Ross S. W. Walker wrote:
>>>>
>>>> Whether or not it was designed to create a Raid5/raid10, it allows the
>>>> creating of raid5 and raid6 during install. It doesn't, however, allow
>>>> the use of raid10 even if it's created in the shell outside of anaconda
>>>> (or if you have an old installation on a raid10).
>>>>
>>>>
>>> My guess is that software Raid10 is still in the eats its children
>>> stage. Most of the time I found it reliable, but I remember the kernel
>>> developers having lots of race condition problems at times. In a
>>> limited memory install region that is anaconda.. these might creep up
>>> more often to be only supported by hand.
>>>
>>>
>>>
>>>
>>>
>> Well it's not even supported by hand. Anaconda flat out refuses to let
>> you use it. Even when I create the device by hand (be it by loading the
>> raid10 module manually and doing mdadm, or by making 2 raid1's and
>> putting a raid0 on top of them), anaconda just flat out refuses to see
>> the final device.
>>
>> Russ
>>
> I don't think anaconda will support it or raid 6 for the foreseeable future.
> You have to throw up an upstream complaint, and I doubt you would see anything
> till Fedora Core 8 or so. RedHat's stance seems to be that if you need that
> kind of reliability, buy hardware raid that does raid 10
>
>
Anaconda does now support raid6. The only reason I didn't go with it is
that I heard that performance would be very bad on it.
Russ
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