An administrator is working with an application which has three characteristics:
✑ latency sensitive
✑ database striped over multiple virtual disks
✑ no application redundancy
Which storage policies meet the VM performance and cluster constraint while protecting against at least 1 failure?
For a latency-sensitive application with a database striped over multiple virtual disks and no application redundancy, RAID 1 with a Stripe Width of 2 is the most suitable option. RAID 1 provides high availability by mirroring the data, ensuring protection against at least one disk failure. Additionally, RAID 1 has a lower latency compared to RAID 5 and RAID 6, making it more suitable for latency-sensitive applications. The Stripe Width 2 allows efficient utilization of the multiple virtual disks over which the database is striped, enhancing performance while still providing redundancy.
I think B is correct. The DB is stripped across multiple disks.
agreed. and Raid 1 is better latency 5 / 6.
is correct There is no simple way to state latency and system impact for different levels. Here’s one way we can put it: RAID 0 and RAID 10 have effectively no latency or impact. RAID 5 has some latency and impact RAID 6 has roughly twice as much computational latency and impact as RAID 5 RAID 7 has roughly triple the computational latency and impact as RAID 5 https://blog.storagecraft.com/raid-performance/
Yes, I agree it's B. https://blogs.vmware.com/virtualblocks/2019/03/26/considerations-for-running-microsoft-sql-server-workloads-on-vmware-vsan/ Failures to tolerate: Ensure that an option with at least “1 (one) failure to tolerate” is selected. Do not use the option: “No data redundancy”. Number of disk stripes per object: Use default one (1), and consider spreading the data between multiple VMDKs attached to multiple vSCSI controllers.
I think C