As seen on page 117 here, the maximum supported Adapt disk groups would be 4, but when using drives that are 6 TB or larger it is recommended to use either a RAID 6 Disk Group or an ADAPT Disk Pool. Due to the increased amount of time that is taken to reconstruct and copy-back and the chances for a second drive failure increases on either a RAID 1/10 or a RAID 5 Disk Group. As far as the raid 5/6 question, it would depend on the number of disks, as you can lose more space to parity over time as RAID5/6 max at 16 disks.
DELL-Chris H
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November 1st, 2022 12:00
Merckz,
As seen on page 117 here, the maximum supported Adapt disk groups would be 4, but when using drives that are 6 TB or larger it is recommended to use either a RAID 6 Disk Group or an ADAPT Disk Pool. Due to the increased amount of time that is taken to reconstruct and copy-back and the chances for a second drive failure increases on either a RAID 1/10 or a RAID 5 Disk Group. As far as the raid 5/6 question, it would depend on the number of disks, as you can lose more space to parity over time as RAID5/6 max at 16 disks.
Let me know if this helps.
merckz
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November 1st, 2022 21:00
Hi Cris,
mention in the page 118, ADAPT stripe width (data+parity) 8+2, 16+2, it is based on RAID 6?
If implementing 16+2 for a 112x 20TB, how could i get the assumption usable storage?
Best regards,
Merckz
DELL-Joey C
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November 2nd, 2022 01:00
Hi @merckz,
ADAPT is not based on traditional RAID. You can refer to this article for ADAPT concept: https://dell.to/3h3ZWjP
You also can use this PowerSizer tool to calculate roughly the usable capacity: https://dell.to/3DUM5pj