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Exam 2V0-51.19 topic 1 question 57 discussion

Actual exam question from VMware's 2V0-51.19
Question #: 57
Topic #: 1
[All 2V0-51.19 Questions]

Which two best practices must be followed when deploying Horizon View on VMware VSAN? (Choose two.)

  • A. Turn on VMware vSphere Storage APIs Array Integration
  • B. Increase the amount of smaller SAS disks used for the capacity tier
  • C. Enable Horizon View Storage Acceleration
  • D. Disable Horizon View Storage Acceleration
  • E. Increase the amount of smaller SAS disks used for the caching tier
Show Suggested Answer Hide Answer
Suggested Answer: CE 🗳️

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mikey3883
Highly Voted 4 years ago
This is actually a bit of a tricky question IMO. The actual recommendation in the documentation is to use multiple disk groups - I can't find a specific reference to using smaller SAS disks in any tier. However, as a disk group must comprise of a single SSD and then multiple capacity disks (either SSD or spinning depending on hybrid or all-flash configs), the implication is that you should increase the amount of SAS disks in the capacity tier. This would allow for more parallel read/write operations - thus improving performance. You would also have to increase the number of SSDs to increase the number of disk groups as well, but that isn't provided as an option. Enabling View Storage Accelerator is explicitly given as a recommendation. Therefore the correct answers are B and C.
upvoted 6 times
Nadhiro
3 years ago
in p12, they recommand cache tiers
upvoted 1 times
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vmwarelive
Highly Voted 4 years, 4 months ago
Correct Answer: BC caching tier must be SSD
upvoted 5 times
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Aikendrum
Most Recent 2 years, 5 months ago
C & E are correct RTFM ! Virtual SAN Best Practices Get better performance from your Virtual SAN with these best practices. • Use more, smaller SAS disks for capacity tier to get more IOPS. • Separate the SSD device access path from the capacity tier path. Use a dedicated SAS HBA for disk-based flash or use a PCI-E or memory slot SSD. • Minimize the number of components as much as possible per VM. • Enable View Storage Acceleration.
upvoted 1 times
Aikendrum
2 years, 5 months ago
B & C i meant sorry • Use more, smaller SAS disks for capacity tier to get more IOPS. • Enable View Storage Acceleration.
upvoted 1 times
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tut123
4 years ago
Correct Answer: BC https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/vsan/vmware-horizon-7-on-vmware-vsan-best-practices.pdf
upvoted 1 times
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stjwh1
4 years ago
vSAN requirement is SSD. BC correct
upvoted 1 times
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Tommytech9
4 years, 2 months ago
Correct Answer: CE Mr Sable is right, caching tier DOES NOT have to be SSD. Only requires 1 SSD minimum
upvoted 1 times
Eddie007
3 years, 10 months ago
I'm afraid you're incorrect. CACHING tier must be SSD/AF (SAS isn't supported in Caching tier)
upvoted 2 times
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mr_sable
4 years, 5 months ago
1. Enable View Storage Acceleration. 2. Increase the amount of smaller SAS disks used for the caching tier.
upvoted 3 times
Eddie007
3 years, 10 months ago
CACHING tier must be SSD/AF (SAS isn't supported in Caching tier)
upvoted 1 times
EvgenyO
3 years, 9 months ago
SAS is a protocol which is used to pass data from and to disks. SSD could also be connected via SAS protocol to server HBA. Since storage performance (ie number of IOPS) of VSAN (no matter Hybrid or All Flash) depends significanlty on the number of disk groups (the more disks are used for caching tier/the more groups you will create on a host), you should increase the amount of disks (SAS SSD/SATA SSD/NVMe SSD/no matter what SSD) for the caching tier. So, C+E is correct
upvoted 2 times
lark
3 years, 2 months ago
but SAS Disk was the term used
upvoted 1 times
Nadhiro
3 years ago
they said sas cashe disk and sas capacity disk, so he mean sas technologie, and when we said sas disks we mean disk that use sas technologie
upvoted 1 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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