To Raid or Not to Raid that is the question

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dghillza

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#1 dghillza
Member since 2005 • 62 Posts

The advantage of setting up a raid system seem clear yet and even easier now with most motherboards supporting it yet it is always recommended that you use identical drives. Great when you set it up because you purchase the 3 or 4 hard drives at the same time. Sonow I've got raid, better performance and protection should a drive fail. So lets fast forward two or three years and let say now one of the drive's fail in my 4 hard drive setup. So do I need to replace the hard drive with an identical one (what are the chances of me finding one 2 or 3 years later) orcan I replace it with a different one? What pain do I have to go through to get it to work - ie.. firts set up partitions etc... OR is the solution to buy additional drive at the time of purchase and have them lying around - just incase one in the raid array fails

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Captain__Tripps

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#2 Captain__Tripps
Member since 2006 • 4523 Posts
What sort of raid are you running? But no, it doesn't have to be exactly identical.Same size/speed/interface is really all you need to worry about usually...
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Flamingthief

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#3 Flamingthief
Member since 2007 • 78 Posts

if he talkin about usig 4 harddrives then he probably using RAID 5 or 0+1

RAID 0+1 means two harddrives have data spread across and two back-ups of each thus better performance and protection

I would recommend RAID 0+1 since you could probably find similar drives if one were to fail years later and it offers much faster performance

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dghillza

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#4 dghillza
Member since 2005 • 62 Posts

What sort of raid are you running? But no, it doesn't have to be exactly identical.Same size/speed/interface is really all you need to worry about usually...Captain__Tripps

I'm busy building a new system using the Corsair 800D case of which I plan on installing 4 HDD's most likely Seagate Barraguda 1TB and set it up in a raid 5but I'm pondering if going for that protection is worth it should adrive fail later will Ibe able to get another drive that caneasily replace the failed one.

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Flamingthief

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#5 Flamingthief
Member since 2007 • 78 Posts

[QUOTE="Captain__Tripps"]What sort of raid are you running? But no, it doesn't have to be exactly identical.Same size/speed/interface is really all you need to worry about usually...dghillza

I'm busy building a new system using the Corsair 800D case of which I plan on installing 4 HDD's most likely Seagate Barraguda 1TB and set it up in a raid 5but I'm pondering if going for that protection is worth it should adrive fail later will Ibe able to get another drive that caneasily replace the failed one.

it only protects you for only 1 drive failure as the safe as other RAIDs and a single failure in RAID 5 while it does not mean a lost of data suffers a lose of performance

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X360PS3AMD05

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#6 X360PS3AMD05
Member since 2005 • 36320 Posts
Not to raid to avoid headaches, unless it's professional stuff i'd rather have a WD 640GB 32MB SATA II or the like.
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dghillza

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#7 dghillza
Member since 2005 • 62 Posts

if he talkin about usig 4 harddrives then he probably using RAID 5 or 0+1

RAID 0+1 means two harddrives have data spread across and two back-ups of each thus better performance and protection

I would recommend RAID 0+1 since you could probably find similar drives if one were to fail years later and it offers much faster performance

Flamingthief

Yeah RAID 0+1 is under consideration - my biggest thing is speed and protection and being protected means being able to recover years later without any or too much hassle or why bother.

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Captain__Tripps

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#8 Captain__Tripps
Member since 2006 • 4523 Posts

if he talkin about usig 4 harddrives then he probably using RAID 5 or 0+1

RAID 0+1 means two harddrives have data spread across and two back-ups of each thus better performance and protection

I would recommend RAID 0+1 since you could probably find similar drives if one were to fail years later and it offers much faster performance

Flamingthief
Yes, I would also say 0+1 is a better solution than raid5, it is possible to even lose two drives at once and not lose the whole thing, as long as the drives as not from the same set. Rebuilds in raid5 are big deal, I have even seen situations where it wouldn't rebuild because a drive failed, and upon replacing that drive, there is another drive in the system close to failure and is not capable of rebuilding, plus performance of 0+1 is better, although you lose two drives of storage rather than one with raid5.
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dghillza

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#9 dghillza
Member since 2005 • 62 Posts

[QUOTE="Flamingthief"]

if he talkin about usig 4 harddrives then he probably using RAID 5 or 0+1

RAID 0+1 means two harddrives have data spread across and two back-ups of each thus better performance and protection

I would recommend RAID 0+1 since you could probably find similar drives if one were to fail years later and it offers much faster performance

Captain__Tripps

I have even seen situations where it wouldn't rebuild because a drive failed, and upon replacing that drive, there is another drive in the system close to failure and is not capable of rebuilding

My point if that is the case then why bother with raid ... seems like the only resonable option is raid 0+1 or else I might as well just mirror the drive

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Captain__Tripps

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#10 Captain__Tripps
Member since 2006 • 4523 Posts

[QUOTE="Captain__Tripps"][QUOTE="Flamingthief"]

if he talkin about usig 4 harddrives then he probably using RAID 5 or 0+1

RAID 0+1 means two harddrives have data spread across and two back-ups of each thus better performance and protection

I would recommend RAID 0+1 since you could probably find similar drives if one were to fail years later and it offers much faster performance

dghillza

I have even seen situations where it wouldn't rebuild because a drive failed, and upon replacing that drive, there is another drive in the system close to failure and is not capable of rebuilding

My point if that is the case then why bother with raid ... seems like the only resonable option is raid 0+1 or else I might as well just mirror the drive

If you want speed and protection , go 0+1. What I described, was basically two drive failures at the same time which sucks, but happens. You are screwed most the time if that happens, although 0+1 can handle two drive failures as long as the failures are not in the same set.
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dghillza

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#11 dghillza
Member since 2005 • 62 Posts
Cool thank you for the advise I think I go for raid 0+1