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RAID 5 Failed, what to do better...

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June 9, 2014 8:17:08 PM

So after having this raid set up for about 2 years or so, it finally completely crashed. I had 6 seagate barracuda 3tb drives connected to a LSI raid controller. I would assume I had it configured properly, RAID 5. Over the course of its life i probably encountered 4-5 hard drive replacements, these two failing will of course add two to that number. Only concerns with the case I had was ventilation. It seemed to run awfully hot. I removed the cover to let it breath and came back a bit later and it was significantly cooler, so I just left it off. I also turned the server on its side so that the hard drives were oriented flat.

So my question is, what can i do to better my chances for this next go round? Different raid controller? Different case? Throw the drives and controller into my gaming rig? Maybe reduce the drives? Make two raid 5 arrays instead? Any advise will help.

Thanks guys

BR

More about : raid failed

a c 379 G Storage
June 10, 2014 5:24:40 AM

Is this a gaming PC or home PC? If so, why do you feel you need RAID at all? RAID only offers redundancy so that if a drive fails the OS can continue to run. Businesses mostly use RAID to prevent down time. It doesn't protect against viruses, file corruption, or accidental deletions.

You may just want to go with a two drive system. One for the OS and programs and one to store backups on.
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June 10, 2014 5:11:38 PM

More of a media server. Held anything from movies and music to pictures and amongst other things. And I have all this drive space lol...thing I would be better off with 3 raid 0's
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a c 379 G Storage
June 11, 2014 4:44:20 AM

RAID 0 provides no redundancy at all. If one drive fails, the entire array is lost.
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June 11, 2014 12:33:02 PM

Hawkeye22 said:
RAID 0 provides no redundancy at all. If one drive fails, the entire array is lost.


That's right...I meant the one that is a 1:1 mirror...raid 1 maybe?
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a b G Storage
June 12, 2014 11:24:47 AM

Your set up is good! RAID5 - protected data...
If you HDD is hot, look in the RAID GUI see what is report?
less 50 C then you should not worry, it its more than that, put some fans to it
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June 12, 2014 5:41:18 PM

I see. Well I have replacement hdd on the way. I think I might look into a different case. And a down side to having a 6 disk raid was when I replaced one it took like 2 days to rebuild. So I was away from all my stuff for that whole time
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a b G Storage
June 13, 2014 11:32:55 AM

FireWire2 said:
Your set up is good! RAID5 - protected data...
If you HDD is hot, look in the RAID GUI see what is report?
less 50 C then you should not worry, it its more than that, put some fans to it


RAID by itself has nothing to do with data protection.
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a b G Storage
June 13, 2014 11:36:14 AM

The best solution is a independent dedicated backup.
Restoring from backup will also be faster than rebuilding a massive array usually.

There are far more data loss situations that RAID will NOT protect against aside from single drive failure.
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June 13, 2014 12:37:15 PM

Uhh ok soooo what r unsuggesting I do
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a b G Storage
June 13, 2014 3:03:13 PM

bigred8080 said:
Uhh ok soooo what r unsuggesting I do


Take half of the drives you've got and put them in a separate external enclosure or NAS and backup the first set of drives to this.
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June 16, 2014 5:03:59 PM

Alirght, so I took your advice and split them up, my last replacement drive will be in tomorrow. I have three drives in raid 5 on my server, then will have another 3 drives probably running software raid 5 in my home desktop. (unless you have any better ideas) I will use whats in my desktop to back up whats in my server. now for my next question, how should I go about doing this? I figured I could use bitsync to do this.

any kickback on these ideas?

thanks
BR
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a b G Storage
June 16, 2014 6:25:40 PM

bigred8080 said:
Alirght, so I took your advice and split them up, my last replacement drive will be in tomorrow. I have three drives in raid 5 on my server, then will have another 3 drives probably running software raid 5 in my home desktop. (unless you have any better ideas) I will use whats in my desktop to back up whats in my server. now for my next question, how should I go about doing this? I figured I could use bitsync to do this.

any kickback on these ideas?

thanks
BR


As long as you're maintaining a regular backup, just about any software will do. Some are just more sophisticated than others in the types of backup you can do, scheduling/automation, etc...
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