Questions tagged [storage]

Use this tag to refer to any kind of data retention device (RAM, flash, hard disks, magnetic tape, punch cards, etc.), its means of separating pieces of information (files, blocks, sectors, etc.) or how to record and retrieve them. This is a very broad topic so selecting other tags relating to the medium (hard-drive, cdrom, etc.) or the format used on it (fat, ntfs, ext, f2fs, etc.) may help to identify it further.

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No space left on device, space and inodes available on NTFS drive

When I try to make new directories (with mkdir) or files (even empty ones with touch) on an external NTFS hard drive that I use for personal backups, filesystem operations fail with No space left on ...
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Is disk queue depth a device capability, why user can change it?

Is disk queue depth a device capability, why user can change it? https://www.ibm.com/docs/en/linux-on-systems?topic=wsd-setting-queue-depth In my understanding, different disks ( different vendors, ex:...
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Why the subsystem of a SATA device is scsi?

By doing udevadm info -a /dev/sda we can see something like: looking at parent device '/devices/pci0000:3d/0000:3d:02.0/0000:60:00.0/host6/port-6:0/end_device-6:0/target6:0:0/6:0:0:0': KERNELS==&...
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How to sync-backup large qcow2 files (2.5TB) on Debian 10?

Situation: I don't want to create RAID-1, as I am having difficulty navigating creating degraded array due to lack of experience and beginner friendly up to date tutorials and therefore I fear losing ...
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Partioning Linux Filesystem on different NASes

There is a Linux machine that, according to the guy that set it up, has different parts of the Filesystem (I.E. / and /home) allocated on different NASes, resulting in a fictitious display of the ...
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1answer
22 views

Performance and impact of frequent du in btrfs

I’m analyzing the impact of scheduling a cron to run du on several large folders (10-20TB of files in total, # files is less than 100.000) every hour. From what I understand du uses stats which reads ...
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How to find external storage attached to my Linux server

I want to unmount all external storage devices from my server. Could you help in finding out all the external storages(Ex:SAN,etc..) attached to my server. This is what I see currently on my server. ...
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Root partition storage issue

Hey guys I need a serious help. The thing is that I have a dual-booted system and on my Linux side my root partition space is in shortage and I need a fix that can help me to free up my clogged root ...
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How can I own my very personal Cloud Server? [closed]

I want to own my very own personal Cloud server where I don't have to use any of third party hardware or services no subscription no chain latter etc the reason I want this type of cloud storage ...
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Glusterfs limits and building object storage ontop of a gluster volume?

I am pretty familiar with gluster. I use gluster as a data pool for virtual machines. I am looking to develop an object storage system (Similar to S3). At a conceptual level, is it a bad idea to ...
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Root partition available size decreasing after running several command in terminal

I have a problem with my root partition. I use Ubuntu distribution with Parrot Distro. I dual boot Kali on top of Windows 10. My storage is 250gb. I manually partitioned at first installing the OS. ...
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Root partition full after 2 hours of usage

I recently received a message indicating space was running low in my root partition, so I decided to increase my partition's size from 9GB to 30GB (just to be sure) I wouldn't have to deal with this ...
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Usb DIsk Shows“unrecognised disk label” Unable to do dd, partition or reformat

A Complete Noob here! I am having trouble using my Pendrive in my arch system. It does not mount. When I opened GParted I noticed it is taking longer to load and Pendrive was named /dev/sdd in spite ...
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Where is the udev documentation for describing what “P”, “N”, “L”, “S”, “E” prefixes mean in `udevadm info` output and how they relate to rules?

Note: There is a related question here which describes output for this person's specific situation and for their block device "/dev/sdb", but i am trying to set something up for a specific ...
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Shared storage for KVM server cluster?

I have Dell EMC SCv3020 Storage Array and I want to create shared storage for all 3 physical servers to use the same (LVM?) for creating KVM VMs in cluster so if 1 server dies, we can move VM to ...
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How to stop a hanging UUID start job that is not listed in /etc/fstab

On boot up the system hangs for 90 seconds for a UUID start job. This has already been answered at ask ubuntu. The solution there involves removing the offending UUID from the /etc/fstab. In my case, ...
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Is it even possible to correct my LVM mistakes?

I have this Proxmox (PVE) installation on an old server and I wanted to swap the old drives in order to get more space. But first I wanted to move the PVE installation to an SSD. Simple enough. ...
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Truncate file that is opened in another procces

If I try truncate -s 0 log.log (:>log.log has same behavior) the displayd space on disk do become free but the size (ls -l) of file is still the same (tho du shows less). As far as I understand, it ...
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LVM Cache not Running Full Time

I finally set up a cache on an LVM on a server I'm running due to slow write speeds. The first transfer ran just fine, no problems whatsoever, and I finally got my full network speed for the transfer ...
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Monitoring the activity of tape drive with SCSI generic driver (sg)

I would like to monitor statistics (transfer rate, byte/sec) for each LTO tape drive connected to Linux system. I understand that tapestat command can exactly do this, but this shows the activity of ...
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1answer
47 views

Is it possible to mount several storage devices at the same location?

I want to set up several storage device (disk drive, mounted cloud storage) at the same location on a disk to set up a kind of virtual storage made up of several disks for a machine. The aim is to use ...
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LVM - how to disable scrub --assume-clean

Building a raid10 array with LVM. lvs -a -o name,raid_sync_action,sync_percent reports resync 60.23. Is there a way to disable this scrub like you could do with mdraid by using the --assume-clean ...
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1answer
33 views

Created bootable drive using dd, now my 1tb hard drive has only 268mb

I'm using a 2020 Macbook Air (M1 version). I've been trying to work out how to install linux to use some programs I need for data analysis, and today tried to follow this guide: https://corellium.com/...
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1answer
66 views

How can I use par2 to mimick the parity of RAID arrays?

Background: I'm using LTO-8 tapes and my concern is that over time, the data on the tape can become corrupted and the goal that I am trying to accomplish is to use par2 to create the parity that I may ...
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Which caching mode does Stratis-storage use? writeback or writethrough?

Having a large HDD and a small SSD makes me tempted to use Stratis for my /home because currently I can't recognize my manually LVM cached partition scheme anymore. According to Linuxsysadmins: Manage ...
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1answer
36 views

Storage next to bootable USB (Not persistant storage)

I'm wondering if it was possible to have a USB stick from which I can boot some Linux distro like Peppermint and have the same stick act as a normal storage drive at the same time (as in a separate ...
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1answer
381 views

How do I disable Intel Rapid Storage Technology in order to install Linux Mint?

I have an Acer Predator Helios 300 with a 256GB SSD. It came with Windows 10 when I bought it, now I want to switch to Linux, because I'd like to learn how to work with it to better prepare for my ...
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3answers
56 views

How to format a USB stick to be “Normal”

I'm quite confused about the different format types a USB stick could have (or for that matter, any storage device). On this USB stick, I used to have a distro iso installed, and wanted to make it ...
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21 views

Storage systems or file systems on the servers are degraded when they exceed 85% occupation?

I have the following question and I have not found official documentation in this regard, the point is that I have heard from specialists with more years of experience say that the storage systems or ...
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115 views

LVM thin pool inactive and failed with: No data available

I am suffering in a problem due to a system crash, I am using LVM-THIN created in proxmox GUI, all lvs is inactive and the lvm seems broken and I saw it needs to fix manually in system log. After ...
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52 views

create non logical partition from free space on volume group (LVM)

I needed to have Windows beside Ubuntu on my Laptop. The setup on my ubuntu is 500 GB as Logical Volume. I could resize the volume group but can't do anything further, even with gparted on live boot. ...
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881 views

Is my drive failing and is this the same reason my laptop is running slower?

I run Ubuntu-20 and I have scanned my laptop using smartctl. The test results are as follows: SMART Attributes Data Structure revision number: 32 Vendor Specific SMART Attributes with Thresholds: ID# ...
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1answer
116 views

What's a reliable way to check which files and directories have recently taken up disk space of the root partition?

I already tried things like sudo du -csh * (in the root dir), sudo find /usr/lib/ -type f -printf "%s\t%p\n" | sort -n | tail -10 sudo du -a / --exclude=/media --exclude=/home | sort -n -r | ...
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Inconsistent timestamp / Explanation of aTime, mTime, cTime

I have a filesystem using cifs and when moving a file to it from another storage system it does not update the atime or mtime (verified using stat): Access: 2020-12-02 15:40:05.326751807 -0800 Modify: ...
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15 views

Matching mount size to file listing sum

In running the $df -h command I get this for a volume: Filesystem Size Used Avail Use% Mounted on //new.local/DSP 3.3T 2.4T 899G 73% /mnt/DSP However, ...
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107 views

Replacement for Win Storage Spaces

My "big" Windows Server is nearing capacity in terms of physical hard disk slots and I'm thinking about augmenting it with a *nix system as a dedicated file server. CIFS, Active Directory ...
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1answer
42 views

Is rsync stateless?

Let's say we do a backup (2TB and 500'000 files): rsync -az /home/me/ root@192.168.0.2:/backup/home/me/ Questions: Does it first download from destination the list of files (+ their hashes) that ...
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1answer
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Iphone8 Images/Video To CentOS7 Server Bypassing Icloud Storage?

Is it possible when I take a picture/video with my Iphone8 that the images/videos get automatically synced to my CentOS7 server some how to a specific directory? I see the Snap Store has Icloud for ...
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2answers
132 views

Is it true that rsync does not handle “File renames” gracefully?

While using the backup tool duplicity, I noticed that if I rename a file on the source, the data will be resent again over the network to the destination, which is a bit sad. Since duplicity uses ...
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1answer
37 views

Less stopped saving search history

less used to save my search history to $HOME/.lesshst. A few days ago it stopped saving any new search patterns. I still see the old search patterns in $HOME/.lesshst, but the new ones are not saved ...
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237 views

How to mount a usb harddisk after a interrupted shred

Shred command was interrupted by a unrelated and user induced system halt. Now I'm not able to see the harddisk using lsblk -l. Tried on multiple linux systems. This answer (from External HDD detected,...
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1answer
86 views

How can I check if a file/directory is on a fast drive like SSD? [duplicate]

I have a script which has a faster not-so-precise version and a slower thorough version (think recursive directory comparison or duplicate file search). I would like to run the slower version by ...
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1answer
38 views

lsblk doesn't show attached virtual storage / partition

I attached a used virtual storage (backup) to a rescue instance because I need the files of the attached storage. [root@centos-1cpu-1gb-de-fra1 ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vda ...
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233 views

Understanding “Laying out IO file” in fio

I am trying to understand what really happens when in the "Laying out IO file". I have btrfs installed on a raw block device and whenever I run fio with the following configuration, I see ...
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What could cause my system freezing seemingly because of the system storage going wonky?

I have a bizarre problem on my ThinkPad T495 running Ubuntu 20.04. The system would randomly, non-deterministically (0-5 times per day) kinda-freeze. By "kinda-freeze" I mean some ...
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1answer
92 views

How to wipe free space in an LVM volume group?

After some storage reorganisation, I have a volume group with a fair chunk of free space. I want to wipe this free space without perturbing any of the existing volumes. Is there an easy way to fill ...
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1answer
102 views

Is there any long-term side effect of setting vm.dirty_ratio to 0?

When I used to copy a data over a thumb-drive, even if the writing speed can't exceed 2 MiB/s to the thumb-drive, Linux first copies 600 MB data to it in one second - it just writes to the RAM as ...
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1answer
502 views

ZFS Pool in permanent resilvering loop, unable to detach/remove devices

My pool: ❯ zpool status pool: wdblack state: ONLINE status: One or more devices is currently being resilvered. The pool will continue to function, possibly in a degraded state. action: Wait for the ...
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1answer
79 views

df gparted space left [closed]

df -i report 96% left, df report 0% left (but 609M available), gparted report 18.55G left All for the same partition Is there any space left? df -i Filesystem Inodes IUsed IFree IUse% ...
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254 views

What does allocation volume mean in the kvm storage pool?

I was trying to deploy a 4GB VM with virt-install, i've symlinked the /var/lib/libvirt/images to a random directory /kvmstore as my pool and got the following : virt-install --network bridge:virbr0 --...

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