Exam DES-1D12 topic 1 question 37 discussion

The correct answer is C. the maximum drives in a partnership group is 64, when you go above it is a new partnership group, which requires an additional spare above the stripe size

Para hacer un raid 5 (4+1) se requieren 5 discos y el disco de spare, en total 6 discos

ALL exam questions are updated. this question is out of date. So. not valid... very important....

any body have new exam questions?

It is traditional pool (32 drives, 1 for spare so usable 31 drives) when we have 64 drives like this one here (30 usable and 2 for the spare), we need to create another traditional pool, so we need 4+1+1 drive which is 6 so the answer is C.

I think it's A,60/12=5 raid group 4+1 =1raid group so I think answer is A

DELL PDF document about dynamic pools: h16289-dell_emc_unity-dynamic_pools.pdf Page 20-21. The smallest RAID 5 stripe width the system supports is a 4+1. The smallest dynamic pool created with the RAID 5 4+1 configuration is 6 drives. The minimum drive count includes the number of drives specified in the stripe width, plus the hot spare capacity. The hot spare capacity is selected by the user at pool creation, and can either be set to 1 or 2 drives for every 32 drives in the pool. Correct answer for sure is - C!

c is the correct, The same question appears in the mock test

C A maximum of 64 drives are contained within a drive partnership group – Limits the number of drives RAID extents can be provisioned from – Limits the number of drives a private RAID Group LUN can cross – When a drive partnership group is full, a new group must be started with the minimum number of drives for the RAID width + 1 drive worth of spare space Unity_OE_TA.pdf

B So, RAID Extents. It's the collection of the drive extents. For 5 drive extents completed in RAID 5, 4 + 1. What that means is we're doing RAID 5, 4 + 1. The protection in the stripe would determine how many extents we used to build out the actual RAID extent. So, if we need 4 + 1, we need 5 drive extents to complete one RAID extent is all that really means

Question related UNITY Hybrid. Drive Partnership group is related to Dynamic Pool & which is only supported in All Flash systems i believe. So i this question, 5 disks is enough and answer B is right i believe.

Hybrid Unity uses traditional pools. A traditional pool set for RAID 5 is 4+1, 4 data drives 1 for parity regardless of how many drives are in the pool. Minimum number you can add to an existing RAID5 pool is 5 disks.

I think the answer is 6. After 64 needed add 5 drive with 1 spare Total 6.

Dell EMC Unity Hybrid system, use traditional pools... them if you need add capacity. You need add the RAID 4+1... + 1 for hot spare. C is the correct answer.

Agreed

B is correct