diff --git a/puppet/zulip_ops/files/postgresql/setup_disks.sh b/puppet/zulip_ops/files/postgresql/setup_disks.sh
index 5e16c6887b..28c5b1ac62 100755
--- a/puppet/zulip_ops/files/postgresql/setup_disks.sh
+++ b/puppet/zulip_ops/files/postgresql/setup_disks.sh
@@ -1,18 +1,11 @@
 #!/bin/sh
 umount /mnt
-yes | mdadm --create /dev/md0 --raid-devices=2 --level=1 /dev/xvdb /dev/xvdc
-# Add disk to mdadm.conf so it will be enabled on boot
-mdadm --examine --scan | sed 's/  metadata=1.2//; s/ name.*//; s|md/0|md0|' >> /etc/mdadm/mdadm.conf
 
-blockdev --setra 4096 /dev/xvdb
-blockdev --setra 4096 /dev/xvdc
-blockdev --setra 4096 /dev/md0
-echo deadline > /sys/block/xvdb/queue/scheduler
-echo deadline > /sys/block/xvdc/queue/scheduler
+LOCALDISK=/dev/nvme0n1
 
-mkfs.xfs /dev/md0
+mkfs.xfs $LOCALDISK
 
-echo "/dev/md0   /srv  xfs    nofail,noatime,barrier 1 1" >> /etc/fstab
+echo "$LOCALDISK   /srv  xfs    nofail,noatime 1 1" >> /etc/fstab
 mount /srv
 
 # TODO use systemctl instead of pg_ctlcluster on CentOS
@@ -30,6 +23,3 @@ pg_ctlcluster 9.5 main start
 # Disable /mnt line for /dev/xvdb
 umount /mnt
 sed -i 's|^/dev/xvdb|#/dev/xvdb|' /etc/fstab
-
-# Update the initrd so we can use the new array post-boot
-update-initramfs -u