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Yesterday, during a Citrix MCS project with Nutanix AHV / Prism Central, I encountered some interesting behavior.
Adding a larger number of VMs to an MCS machine catalog may fail with:
OutOfMemory
.
Initially, I suspected resource issues on Nutanix or in the Citrix infrastructure. However, Citrix already knows about the issue and documents it under PMCS-58254.
Citrix currently explicitly recommends:
👉 Add no more than 10 VMs to an MCS catalog at a time.
The workaround is correspondingly simple: for larger rollouts, create machines in batches of no more than 10 VMs.
Interestingly, the issue is documented not only in the new release, but also for 2507 LTSR and Citrix DaaS.
Another small Citrix detail that never appears with five VMs but may suddenly cost significant time during a larger rollout. 😉
