General AVD Slowness
We have a pool of NV24s_V3 VMs running. The VMs have 170+ applications on them so we have to keep the total number of users per VM down to 12. That being said, I can power on one of our VMs, let it boot up and sit for 10-15 minutes to get through all its startup processes and then login. When I login and get to my desktop, OneDrive will sync for a bit, but outside of that the CPU is under 10%, RAM is under 10% used and Disk Util is 15-20%. Even with those numbers low and me being the ONLY user on the VM, its still slow to open applications. It even takes 5-6 seconds for File Explorer to open. I see defender processes running under Disk stats, but it alone shouldnt be causing that kind of slow down, especially when the CPU / RAM / Disk stats are low. Anyone have any advice of something to look at to speed up performance? We have already excluded Defender from scanning Program Files and Program Files (x86). Just very troubling that its slow with just 1 user logging onto a 24 proc, 200+ GB RAM VM.Linux Ubuntu Resize disk, revered disk space before getting full to auto grow.
Issue : "internal Linux Escalation Engineers regarding this, they confirmed that is by design for Ubuntu VMs. The disk size will not auto grow once it is full before resizing from the portal. For the size to auto change, there will be some free space on the disk before resizing on the Azure portal." Suggestion: to avoid this issue again in the future, as a permanent solution would be great if your team can implement a default setup to reserved some space enough to be able for the VM to auto-grow the disk before is "out-of-space".
RAID Array / Disk Performance with Bitlocker - unexpected results
I've doing some testing on a system to identify the impact that Bitlocker Encryption has on the read/write performance and the results have been interesting to say the least; I'm hoping someone can help to explain my findings. I'm using an entry level server with quad core Xeon E-2224 CPU and 16GB RAM which has Windows Sever 2016 Standard installed - and it's a totally fresh Windows install with all of the latest relevant drivers are installed. My storage array is configured through the integrated controller on the motherboard and is across 4 x 10TB WD Enterprise disks configured as follows: RAID Level RAID5 Legacy Disk Geometry (C/H/S) 65535/255/32 Strip Size 64 KiB Full Stripe Size 192 KiB Disk 0 WDC WD102KRYZ-0 Disk 1 WDC WD102KRYZ-0 Disk 2 WDC WD102KRYZ-0 Disk 3 WDC WD102KRYZ-0 I've provisioned a single large logical volume and I've created two partitions for my testing as follows: Drive Capacity File System Allocation Unit Size Y: 100 GB NTFS 4096 bytes Z: 25,600 GB NTFS 8192 bytes I ran an array of tests (results attached) on the volumes before encryption, then reformatted and encrypted the volumes and same tests again. The results have been very interesting, I was expecting to see a small performance hit across all tests due to Bitlocker, but what I found was that some tests had a drastic performance decrease, in some cases up to 50%, and surprisingly some tests showed an increase in performance, in one case an increase of 60%. Can anyone help to explain this? I'm thinking of running the tests again with another product to see if I get similar results, but what I'm using is fairly robust/reliable from my experience. Findings are in the spreadsheet attached.MSIX AppAttach - Disk Space on Host VMs
When attaching an MSIX App via AppAttach to a host VM, the attached application shows up as its own drive and doesnt take up available space on host VM correct? Trying to decide what size of disk on the host VMs for an AppAttach pool if our users profiles are done via FSLogix and apps are using AppAttach. Seems like I could go with a small disk size for the host VM. Is my assumption correct?
