topic Re: what the difreent between RAID configration in AFF

what the difreent between RAID configration

AhmedAl-Batoosh — Wed, 04 Jun 2025 11:29:17 GMT

what is the best RAID configration below and why

"A"

RAID type: RAID-DP

Drive model: 15300 GB SSD

Total number of drives: 26

Number of hot spares: 1

WAFL overhead (%): 5

Aggregate snapshot reserve (%):5

Volume snapshot reserve (%):10

Total number of drives per aggr: 25

Number of data drives per aggr.: 23

Number of RAID groups per aggr.: 1

space usable 255.6 TB

"B"

AID type: RAID-DP

Drive model: 15300 GB SSD

Total number of drives: 26 (13 per RAID)

Total Number of hot spares per raid: 2

WAFL overhead (%): 5

Aggregate snapshot reserve (%):5

Volume snapshot reserve (%):10

Total number of drives per aggr: 11

Number of data drives per aggr.: 10

Number of RAID groups per aggr.: 2

space usable 116.2 TB

andris — Wed, 22 May 2024 14:44:25 GMT

I'm not following config "B".

Do you have one aggregate (2 RG's) or two aggregates (1 RG per aggr)?

AhmedAl-Batoosh — Wed, 22 May 2024 16:11:30 GMT

But the possibility of failure of the SSD in case A HIGHT compare with B

I went to compaer which is best for me one aggregate (2 RG's) or two aggregates (1 RG per aggr)?and why