xfs | extends fs module , Node.js file module | Runtime Evironment library

I am in the midst of coding a lambda function which will create an alarm based upon some disk metrics. The code so far looks like this:

I am trying to deploy mongodb to my kubernetes cluster. It automatically creates a pvc and pv based on the storage class name i specify. However the pod is stuck on ContainerCreating because of the following error:

MountVolume.MountDevice failed for volume "pvc-f88bdca6-7794-455a-872f-8230f1ce295d" : mount failed: exit status 32 Mounting command: systemd-run Mounting arguments: --description=Kubernetes transient mount for /var/lib/kubelet/plugins/kubernetes.io/aws-ebs/mounts/aws/us-east-2a/vol-087b3e95d1aa21e03 --scope -- mount -t xfs -o debug,defaults /dev/xvdbq /var/lib/kubelet/plugins/kubernetes.io/aws-ebs/mounts/aws/us-east-2a/vol-087b3e95d1aa21e03 Output: Running scope as unit run-4113.scope. mount: /var/lib/kubelet/plugins/kubernetes.io/aws-ebs/mounts/aws/us-east-2a/vol-087b3e95d1aa21e03: wrong fs type, bad option, bad superblock on /dev/nvme1n1, missing codepage or helper program, or other error.

I'm not sure what to do as this is pretty consistant no matter how many times i uninstall and resinstall the helm chart.

kubectl version

Background:

I have an old Seagate BlackArmor NAS 110 that I'm trying to install Debian on by following the instructions here: https://github.com/hn/seagate-blackarmor-nas.

I have a couple of USB to TTL serial adapters (one FTDI chipset and the other Prolific) that I've tried and have run into the same issue with both. I have made the connection to the serial port on the board of the NAS using a multimeter to make sure I've gotten the pinout correct.

Problem:

I'm not able to stop the autoboot process by pressing keys and any point during the boot process. The device also does not seem to respond to any keystrokes although they are echoed back.

What I've Tried So Far:

• Using USB to TTL serial adapters with two different chipsets
• Using the adapters on two different computers (MacBook Pro and a ThinkPad)
• Using different operating systems (MacOS, Windows 10, Ubuntu 20.04)
• Using different terminal programs (Screen, Minicom, Putty)
• Turned off hardware and software flow control
• Tested output of adapters by shorting RX and TX pins and seeing keystrokes echoed back
• Commands seem to be sent to device as when I type I see my commands echoed back (not sure if this is supposed to happen)

I've been at this for a few days and can't figure it out. I've also recorded my screen while experiencing the issue: https://streamable.com/xl43br. Can anyone see where I'm going wrong?

Terminal output while experiencing the problem:

Situation: Server uses XFS filesystem, block size 4kB. There are a lot of small files.

Result: Some directories take 2+GB space, but actual file size is less then 200MB.

Solution: Change XFS block size to least possible, 512B. I am aware it means more overhead and some performance loss, I haven't been able to find out how much.

Question: How to do it?

I am aware XFS uses xfsdump to backup data. So lets presume /dev/sda2 is actual XFS filesystem I want to change and /mnt/export is where I want to dump it using xfsdump. Manual says that dumped blocksize has to be same as restored blocksize and -b parameter "Specifies the blocksize, in bytes, to be used for the dump." . I am bit worried because manual also says "The default block size is 1Mb"

Is this then correct way to dump my complete filesystem (in this case, /dev/sda2 is mounted to /home)?

I have a nested list of strings, which I am trying to convert into a dictionary. The list seems to be in a reasonable format, but my dictionary is getting overwritten each time I append to it.

Initial list:

I have a separate list and a list of dictionaries which I am trying to combine into a single dictionary for more efficient access in playbooks:

a simple list, named 'volume_device_path':

I am trying to use a loop to retrieve multiple values which are present in multiple list-nested dictionaries. Unfortunately, it seems that I cannot do so unless I explicitly define which list I want to grab. Since I intend to define hundreds of these devices, I am hoping there is something that scales better.

Some issue executing the following bash with Paramiko:

I created a CentOS 7 VM instance through Compute Engine -> VM instances, and it came with xfs by default. I see from this page that Google Cloud supports ext4, but I don't see any option to specify it when creating a VM instance. Is it possible to do so?