Purchased a //x20 to replace a Tegile HA2300 hybrid configured with 2 TB datastores.
12 x Cisco UCS B Series servers, FC connected to MDS-9148S switches.
VMware 6.7 U3, Horizon 7.7 and AppVolumes 2.16, linked clones.
In some of the FlashStack validated designs, I see configurations such as a singe 10 TB datastore to support 1000 VMs(?), any concerns related to queue depth?
For AppVolumes, it is necessary to create a Storage Group and distribute the App Stacks over 2 or 3 datastores? Response should not be an issue, but again, any concerns related to queue depth or is this a non-factor.
I would say if you're using best practice recommendations for your storage and have queue-depth set accordingly you shouldn't have any problems/concerns with App Volumes performance.
VMware Knowledge Base - App Volumes Limits
1000 VM's on VMFS and 2000 VM's on VSAN are the published maximums so when/if you grow beyond that you would want to create a storage group to replicate the AppStacks in order to accommodate the increased number of VM's
Hope that helps.