 Re: HTPC / Front projector questions
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
Joined: Apr 2003
Posts: 16,441 |
With RAID 5, your total capacity is X(n - 1), where X is the drive capacity and n is the number of drives. One drive's worth of data is dedicated to parity info. The good news is that the more drives you have in the array, the less overall space is used for parity. Still, no matter how many you have, you still can't lose 2 drives simultaneously without the whole array going down.
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Re: HTPC / Front projector questions
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Joined: Jun 2003
Posts: 8,488 Likes: 1
axiomite
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axiomite
Joined: Jun 2003
Posts: 8,488 Likes: 1 |
Please understand, I say this with the greatest respect and affection...
You guys are geeks. 
bibere usque ad hilaritatem
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Re: HTPC / Front projector questions
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
Joined: Apr 2003
Posts: 16,441 |
< taking a bow >
I always take that as a compliment.
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Re: HTPC / Front projector questions
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Joined: Sep 2002
Posts: 737
aficionado
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aficionado
Joined: Sep 2002
Posts: 737 |
That stopped being an insult when all the geeks of the 80's became billionaires.
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Re: HTPC / Front projector questions
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Joined: Mar 2003
Posts: 1,859
connoisseur
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connoisseur
Joined: Mar 2003
Posts: 1,859 |
Geek is fine...that's the proper terminology.
As for the RAID5, I believe whoever it was was saying they could lose two drives because of the hotspare. This is not technically true though. Even with the hotspare, the data needs to be rebuilt onto the hotspare drive before a drive can fail again.
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Re: HTPC / Front projector questions
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
Joined: Apr 2003
Posts: 16,441 |
...which is precisely why I said In reply to:
and then an additional drive failure in the data array (after the hotspare kicked in)
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Re: HTPC / Front projector questions
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
Posts: 18,044 |
Yes, I know that...
:-P
However, I'm dealing with quite a bit of data here, and with the particular array that my client has, 6 drives + 1 hotspare is the only way to go. Sure, you can have 2 sets of 6 drives + 1 hotspare, but the client wants to use those sets with separate servers due to performance issues (I'll have to do research on what the saturation levels can be) Therefore, I would have to use 2 drives for the mirror, and 4 drives for the RAID5, resulting in approximately 170 GB wasted on the mirrored drives and a total storage capacity of the RAID5 at, say, 500 GB.
...
What was my point, anyway? That actually doesn't sound too bad...
And yes, I am a geek. Peter's just trying to be geekier than thou. And I, naturally, am trying to out-geek him.
I am the Doctor, and THIS... is my SPOON!
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Re: HTPC / Front projector questions
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
Joined: Apr 2003
Posts: 16,441 |
How can you out-geek me without knowing your way around Cisco IOS? Hmmm??? < poke > < poke >
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Re: HTPC / Front projector questions
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
Posts: 18,044 |
I still know more UNIX than you.
I am the Doctor, and THIS... is my SPOON!
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Re: HTPC / Front projector questions
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Joined: Sep 2002
Posts: 737
aficionado
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aficionado
Joined: Sep 2002
Posts: 737 |
And I'm on staff for one of the premier computer enthusiast websites on the planet which I think out-geeks you both.
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