Change from Raid-5 to Raid-0 on NFS

docs/CONFIG-VARS.md

@@ -324,7 +324,7 @@ When `storage_type=standard`, a NFS Server VM is created, only when these variab
 
 **NOTE:** When `node_pools_proximity_placement=true` is set, the NFS VM will be co-located in the proximity group with the additional node pool VMs.
 
-**NOTE:** The 128 default is in GB. With a RAID5 configuration, the default is 4 disks, so [the defaults would yield (N-1) x S(min)](https://superuser.com/questions/272990/how-to-calculate-the-final-raid-size-of-a-raid-5-array), or (4-1) x 128GB = ~384 GB.
+**NOTE:** The 128 default is in GB. With a RAID0 configuration, the default is 4 disks.
 
 | Name | Description | Type | Default | Notes |
 | :--- | ---: | ---: | ---: | ---: |

files/cloud-init/nfs/cloud-config

@@ -39,11 +39,11 @@ runcmd:
   - systemctl enable rpc-statd
   - systemctl start rpc-statd
   #
-  # Create Raid5 Array
+  # Create Raid0 Array
   #
   - pvcreate $(find /dev/disk/azure/scsi1/ -type l | xargs)
   - vgcreate data-vg01 $(find /dev/disk/azure/scsi1/ -type l | xargs)
-  - lvcreate --type raid5 --extents 100%FREE --stripes 3 --name data-lv01 data-vg01
+  - lvcreate --type raid0 --extents 100%FREE --stripes 4 --stripesize 256 --name data-lv01 data-vg01
   - mkfs -t ext4 /dev/data-vg01/data-lv01
   #
   # Update /etc/fstab

variables.tf

@@ -453,7 +453,7 @@ variable "nfs_vm_zone" {
 }
 
 variable "nfs_raid_disk_size" {
-  description = "Size in Gb for each disk of the RAID5 cluster, when storage_type=standard"
+  description = "Size in Gb for each disk of the RAID0 cluster, when storage_type=standard"
   type        = number
   default     = 256
 }