when does a raid rebuild failed

when does a raid rebuild failed

[邹勇波]

 hi, all!
I am using mdadm to create raid on a jbod. Sometimes the rebuild process
of the raid failed, and some of the active disks became faulty.
Does someone konwns when a disk will become faulty? How does a raid that
is created by mdadm failed? What is the process of the raid that is
rebuilding.
Very appreciate for any advice.

-- 
勿在浮沙筑高台

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Re: when does a raid rebuild failed

[Drew]

> I am using mdadm to create raid on a jbod. Sometimes the rebuild process
> of the raid failed, and some of the active disks became faulty.
> Does someone konwns when a disk will become faulty?

Running 'smart' on a disk in the jobd will tell you if the disk itself
is showing signs of becoming faulty. There are also other possible
causes, including controller failure and bad cables. I'd need more
information about what exactly is failing, and how, before I can give
you a better answer.

> How does a raid that is created by mdadm failed?

Usually because a drive failed. See my previous answer for why.

> What is the process of the raid that is rebuilding.

Not sure what you mean. We need a bunch more information about what is
failing, logs showing what is happening, etc before we can really
begin to offer any answers.


-- 
Drew

"Nothing in life is to be feared. It is only to be understood."
--Marie Curie