Hi,
i have problem, how to calculate MTTDL for array RAID 10. I need it to understand for test. I haven't found any equations for it. So if you could help me, I'll be happy
.
I have 4x4TB discs in RAID 10.
Average data transfer rate = 146 MB/s
Average read seek time rate = 8.5ms
Average write seek time rate = 9.5ms
AFR (Annualized failure rate) = 1,168%
MTTF (MTBF) = 750 000 hours.
MTTR = 8 hours - teoretically.
And I need to calculate MTTDL. I've tried to use this: MTTDL = (MTBF^2) / ((N) * (N - 1) * MTTR), but I'm not sure, if i'm correct.
Thank you.
i have problem, how to calculate MTTDL for array RAID 10. I need it to understand for test. I haven't found any equations for it. So if you could help me, I'll be happy

I have 4x4TB discs in RAID 10.
Average data transfer rate = 146 MB/s
Average read seek time rate = 8.5ms
Average write seek time rate = 9.5ms
AFR (Annualized failure rate) = 1,168%
MTTF (MTBF) = 750 000 hours.
MTTR = 8 hours - teoretically.
And I need to calculate MTTDL. I've tried to use this: MTTDL = (MTBF^2) / ((N) * (N - 1) * MTTR), but I'm not sure, if i'm correct.
Thank you.