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05-15-2009 06:40 AM
05-15-2009 06:40 AM
And what does this mean?
7D+1P -72GB 15KRPM (GB)
Thanks,
Srini
Solved! Go to Solution.
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05-15-2009 07:49 AM
05-15-2009 07:49 AM
SolutionHow to assign points on this new forum? Click the Kudos Star!
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05-15-2009 09:57 PM
05-15-2009 09:57 PM
Re: Difference between Raid group and parity group?
RAID groups can contain single or multiple parity groups. You can think of the RAID group as the actual RAID container for data protection, and the parity group as a partition of that container. This way, multiple LUNs can be created from each RAID group, and ported out to the same or different servers. This allows granularity in LUN sizes being obtained from the RAID group.
If each partition (parity group) is assigned to the same server, there should be no contention for the RAID group's disk resources. You can always just use the entire RAID group as a single parity group and create one big LUN.
Rgds-Kranti
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05-15-2009 11:24 PM
05-15-2009 11:24 PM
Re: Difference between Raid group and parity group?
Array group/ RAID group:
The number of physical disk drives contained in a RAID group . This number depends on the RAID configuration. For example, there can be two or four physical disks in a RAID1 group. There are four physical disks in
a RAID5 group.
Parity group:
A parity group is a mode of disk operation and configuration.It is
synonymous with the term RAID group
>>7D+1P -72GB 15KRPM (GB)
Means, total 8disk with 1 parity , if one fails you will get 7 disk capacity use.
Check below link for details,
http://209.85.229.132/search?q=cache:3ZSeDRHgpq0J:raid5.nl/UserGuide12000.pdf+Raid+Group+and+parity+group+in+xp12000&cd=6&hl=en&ct=clnk&gl=bd#32
http://209.85.229.132/search?q=cache:criU5dPD5wYJ:h71028.www7.hp.com/ERC/downloads/4AA0-7923ENW.pdf+7D%2B1P+-72GB+15KRPM+(GB)+in+xp12000&cd=1&hl=en&ct=clnk&gl=bd
If helps, pls assign point.
Rgds//
Taifur
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05-16-2009 08:09 AM
05-16-2009 08:09 AM
Re: Difference between Raid group and parity group?
In XP the most common RAID5 array groups are 8 physical disks which can create the parity group of 7D+1P, with the interleaved=striped concatenation of 2 or 4 this kinda array groups, we could create the parity groups of 14D+2P or 28D+4P
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05-19-2009 04:11 AM
05-19-2009 04:11 AM
Re: Difference between Raid group and parity group?
One or two array groups formatted with a common RAID level. RAID1 parity
groups consist of 4 HDDs (2D+2D) or 8 HDDs (4D+4D). RAID5 parity groups
include a parity disk but also consist of 4 HDDs (3D+1P) or 8 HDDs (7D+1P).
All RAID6 array groups are made up of 8 HDDs (6D+2P).
Array group : A group of four identical unformatted disk drives (HDDs) which are
formatted into Parity groups (also called RAID groups).
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05-19-2009 08:12 AM
05-19-2009 08:12 AM
Re: Difference between Raid group and parity group?
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