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Three Way Mirroring

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Hi there,

I Can't understand why Storage Spaces require at least 5 disks to get 3 Way Mirroring ?

Original Data + 2 copies = 3 disks not 5 ...

I'd be glad to get some technical informations about that subject, how data are stored/organized on disks ...

Could someone help please ?

Gino

Thursday, February 21, 2013 9:50 PM

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This may explain some things....

Storage Spaces explained: a great feature, when it works
http://arstechnica.com/information-technology/2012/10/storage-spaces-explained-a-great-feature-when-it-works/

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Merv Porter [SBS-MVP]
============================
- Marked as answer by Andy Qi Tuesday, February 26, 2013 9:55 AM
Thursday, February 21, 2013 10:45 PM
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Hi, Vurtual Server 2005.

Pool requires a quorum of 50% plus drives to be present to survive.

with 3 way mirror - we have a guarantee of surviving 2 disk failure.

http://social.technet.microsoft.com/Forums/en-en/winserver8gen/thread/2e6955b7-b293-4880-8fb3-8b4ce0e02ec9

Masahiko Sada
Microsoft MVP for Server Solutions - Windows Home Server
- Edited by Masahiko SadaMVP Saturday, February 23, 2013 8:10 AM
- Marked as answer by Andy Qi Tuesday, February 26, 2013 9:55 AM
Saturday, February 23, 2013 7:49 AM

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Sign in to vote
This may explain some things....

Storage Spaces explained: a great feature, when it works
http://arstechnica.com/information-technology/2012/10/storage-spaces-explained-a-great-feature-when-it-works/

--
Merv Porter [SBS-MVP]
============================
- Marked as answer by Andy Qi Tuesday, February 26, 2013 9:55 AM
Thursday, February 21, 2013 10:45 PM
0

Sign in to vote
Hi, Vurtual Server 2005.

Pool requires a quorum of 50% plus drives to be present to survive.

with 3 way mirror - we have a guarantee of surviving 2 disk failure.

http://social.technet.microsoft.com/Forums/en-en/winserver8gen/thread/2e6955b7-b293-4880-8fb3-8b4ce0e02ec9

Masahiko Sada
Microsoft MVP for Server Solutions - Windows Home Server
- Edited by Masahiko SadaMVP Saturday, February 23, 2013 8:10 AM
- Marked as answer by Andy Qi Tuesday, February 26, 2013 9:55 AM
Saturday, February 23, 2013 7:49 AM