05-25-2015, 11:59 PM
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Large Rat
Join Date: Apr 2015
Posts: 8
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what in the hell......???
Quote:
Originally Posted by Shift
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The only time it will fail is when two disks failed simultaneously but such probability is one in a million! As a result, one may tend to believe that RAID can not fail.
The reality: RAID fails
In reality and to the surprise of most, RAID could fail and often fail. See some typical scenario below :
Scenario 1:
When one hard disk fails, very often, there is no hot standby. As a result, the raid array is running on degraded mode. While waiting for the replacement drive which may take a day or two, the likelihood of next drive failure disabling the raid volume is very high. It is reasonable to assume that all the drives in the array are from the same batch and subject to equal amount of working stress. So if one disk fails, the other is also near imminent failure and it often does.
Scenario 2:
Most raid server has a single controller. Its failure will result in catastrophic single point of failure.
Scenario 3:
Frequently, due to power surge, the controller or a number of disk elements could fail resulting in total loss of data. It is also found that a power surge may corrupt the RAID configuration setting of NVRAM in the controller card.
Scenario 4:
It is also commonly found that while replacing a faulty drive in an attempt to rebuild the raid volume to healthy state, wrong procedures are performed resulting in wrong or partial rebuild, or complete system breakdown upon completion of rebuild.
Scenario 5:
Not to forget that a RAID configuration with fault tolerance at best only intends to protect the physical failure, but not logical corruption such as system corruption, virus infection, or inadvertent deletion.
Types Of RAID failures
To summarize, RAID server often fails as a result of the following situations and frequently, a combination of them :
Malfunctioned Controller Missing RAID partition Power Surge
Data Deletion or reformat Virus Attack Inadvertent reconfiguration of RAID volume
Raid rebuild error or volume reconstruction problem
Multiple disk failure in off-line state resulting in loss of RAID volume
Wrong replacement of good disk element belonging to a working raid volume
Loss of RAID disk access after system or application upgrade
Loss of RAID configuration settings or system registry
In case you have a RAID server failure, you may want to read the emergency RAID Rescue guide before sending the disk to us for data recovery.
ouch that could cause a server wipe cleaned. just gotta be gentle with her. if it does I am not bother i will just start from a clean slate
I donated the 40 for that reason reset the server then we all can race for xp and have fun together like the olden days.
But I really just donated because I love this server and the people that who run it, and the people who are in it.
I Love you man, I don't care man you are not getting my bud light.
LOL
Thanks Sincerely, Kishift Inggears GL of The Elite
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What are you talking about?... where did this thread even go to talking about raids ..... WAYYY to much to read here dude. KISS it. |
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