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Exam 1Y0-311 topic 1 question 15 discussion

Actual exam question from Citrix's 1Y0-311
Question #: 15
Topic #: 1
[All 1Y0-311 Questions]

Scenario: A Citrix Engineer is managing a Provisioning Services environment. The day after a new vDisk version is rolled out to production, multiple users report issues with one of the core applications hosted on the vDisk image. The administrator wants to roll back the new change and allow the target devices to stream from a functioning vDisk as soon as possible.
How can the engineer accomplish this in the least amount of time?

  • A. Perform a vDisk merge to consolidated differencing disk, then restart the target devices.
  • B. Copy an older version of the vDisk from the backup storage location, then reassign all the target devices to the imported vDisk and restart them.
  • C. Revert the vDisk version to Maintenance or Test mode, then restart the target devices.
  • D. Create a new version of the vDisk and reinstall the application, then restart the target devices.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by thedelph at Feb. 12, 2020, 1:59 p.m.

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majkel
2 years, 4 months ago
I am not even sutre if that is possible to revert from prod to test or to maint version
upvoted 1 times
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majkel
2 years, 4 months ago
Answer C makes no sense as it causes downtime. once a production VMs (let's say thousands of them) are booted the you cannot revert a vdisk version to maintenance or test because they are booted from that vDisk version. to revert you would need to shut all VDAs down that causes down time. the only reasonable option is to restore older vDisk version from backup and reboot devices in batches once they are drained.
upvoted 1 times
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SlavMirrr83
2 years, 6 months ago
"The administrator wants to roll back the new change and allow the target devices to stream from a functioning vDisk as soon as possible." If the vDisk is corrupted and you want to roll back why would you want to revert the disk to TST or MAINT version and again push it to the users? Especially that you don't push MAINT vDisks to users? I think it should be B. Get a working vDisk from backup -> restore -> let users work -> focus on fixing new corrupted build.
upvoted 1 times
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rikili
4 years, 1 month ago
Yes, C is correct
upvoted 1 times
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thedelph
4 years, 9 months ago
If issues exist in the new version, revert from test to maintenance, if no active sessions exist. You can alternately revert from production to either test or maintenance. Shut down any booted device before reverting to another version. https://docs.citrix.com/en-us/provisioning/current-release/manage/managing-vdisks/vdisks-update.html
upvoted 2 times
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