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Setting up Raid10
https://3parug.com/viewtopic.php?f=18&t=2761
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Author:  LgmDan [ Thu Jan 11, 2018 5:17 am ]
Post subject:  Setting up Raid10

Hi guys,

i am wondering how to set up a raid10 on a 3par 8450. In my CPGs i only have the Option between raid1, raid5 and raid6. Even i i want to create a new cpg, it offers the same raid Levels. I know that raid 10 is a raid 1+0 but how do i build that in the 3par?

Thanks

Daniel

Author:  Noss [ Thu Jan 11, 2018 6:57 am ]
Post subject:  Re: Setting up Raid10

The RAID1 type is effectively RAID10. The 3PAR will create RAID10 logical disks in the background.

As for RAID5 is RAID50 and RAID6 is RAID60.

Author:  LgmDan [ Thu Jan 11, 2018 7:15 am ]
Post subject:  Re: Setting up Raid10

Ah okay, that makes totally sense. Thank you very much.

Author:  apol [ Thu Jan 11, 2018 7:35 am ]
Post subject:  Re: Setting up Raid10

Wait a moment. What's "RAID 50" and "RAID 60"??

RAID10 is a mixture of RAID 0 and RAID 1, Mirroring and Striping, abbreviated as "RAID 10".

But RAID5 is - just RAID5? Am I missing something?? :shock:

Author:  Noss [ Thu Jan 11, 2018 9:27 am ]
Post subject:  Re: Setting up Raid10

RAID50 is data striped across RAID5 raid sets and RAID60 is data striped across RAID6 raid sets.
If you click the Advanced Options in SSMC when creating a CPG or look at the settings of a CPG using cli command showcpg -sdg you will see how each raid set will be configured. For example RAID 5 3 data + 1 Parity.

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