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VMware 5V0-21.21 Exam - Topic 6 Question 96 Discussion

Posted by Carry on May 15, 2026 at 12:53 AM

A customer is planning to deploy a vSAN cluster to host their in-house distributed ERP system. The hardware specifications for their server nodes include:

* 2 x Intel Xeon CPU E5-2697 v3 @ 2.60GHz

* 1TB memory

Which boot device is supported for the vSAN ESXi nodes for this customer?

Suggested Answer: A

If the memory of the ESXi host has 512 GB of memory or less, you can boot the host from a USB, SD, or SATADOM device. If the memory of the ESXi host has more than 512 GB, consider the following guidelines. * You can boot the host from a SATADOM or disk device with a size of at least 16 GB. When you use a SATADOM device, use a single-level cell (SLC) device. https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-planning.doc/GUID-B09CE19D-A3F6-408C-AE69-35F65CBE66E1.html


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24 comments · newest first
WH
Whitney 3 days ago
I think option A is the best choice. SLC is more reliable.
DA
Daren 8 days ago
MLC SATADOMs are not as reliable as SLC, so I’d avoid option C.
WI
Wilford 13 days ago
I think option A is a bit overkill for this scenario.
DA
Danica 18 days ago
Wait, are we sure about the 4GB limit? That seems low for a vSAN setup.
NA
Na 23 days ago
I agree, option B seems like the best choice here.
LA
Lavonna 28 days ago
A 4GB USB or SD device is usually fine for booting ESXi.
AR
Aretha 1 month ago
I disagree, PMEM sounds overkill for just booting.
BI
Billi 1 month ago
I thought SLC was the way to go for reliability?
AM
Amie 1 month ago
Wait, are we sure 4GB is enough for ESXi? Seems a bit low.
LA
Lashanda 2 months ago
Definitely going with option B! Makes the most sense.
EL
Ellsworth 2 months ago
A 4GB USB or SD device is usually fine for booting ESXi.
LY
Lynda 2 months ago
Surprised there's no mention of NVMe options for booting!
PA
Patti 2 months ago
I think option D is a bit much for this setup.
RO
Rodrigo 2 months ago
Wait, are we really considering a 16GB SLC SATADOM? Seems overkill.
JO
Jonelle 2 months ago
Definitely going with option B! Makes sense.
DO
Dominga 3 months ago
A 4GB USB or SD device is usually fine for booting ESXi.
LE
Leota 3 months ago
I remember reading that MLC SATADOMs are sometimes used, but I’m confused about whether they meet the vSAN requirements.
MA
Margarett 3 months ago
I’m not entirely sure, but I think PMEM devices are more for high-performance scenarios, not necessarily for standard vSAN booting.
TA
Tamie 3 months ago
I practiced a similar question about boot devices for ESXi, and I feel like USB or SD devices were often mentioned as acceptable options.
ON
Oneida 3 months ago
I think the boot device options are pretty specific, but I can't remember if the SLC SATADOM is a requirement for vSAN.
CH
Chaya 4 months ago
I recall that PMEM devices are usually for performance, not necessarily for booting ESXi, so I’m leaning towards the USB option too.
AL
Alecia 4 months ago
I practiced a similar question, and I think the 4GB USB option could be the right choice since it's often used for booting.
NA
Nathalie 4 months ago
I'm not entirely sure, but I feel like the SLC SATADOM might be overkill for just booting ESXi.
MI
Mila 5 months ago
I think the boot device options are pretty specific, but I remember something about USB or SD devices being common for ESXi hosts.
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