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.

Filter by
Sorted by
Tagged with
1
vote
0answers
8 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 ...
0
votes
0answers
11 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. ...
4
votes
1answer
862 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# ...
1
vote
1answer
28 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 | ...
0
votes
0answers
17 views

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: ...
0
votes
0answers
13 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, ...
0
votes
0answers
25 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 ...
1
vote
1answer
33 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 ...
0
votes
1answer
8 views

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 ...
0
votes
2answers
45 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 ...
3
votes
1answer
31 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 ...
0
votes
0answers
39 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,...
1
vote
1answer
21 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 ...
1
vote
1answer
21 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 ...
0
votes
0answers
57 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 ...
0
votes
0answers
17 views

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 ...
0
votes
1answer
34 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 ...
0
votes
0answers
44 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 ...
0
votes
1answer
199 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 ...
0
votes
1answer
61 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% ...
1
vote
0answers
45 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 --...
0
votes
2answers
305 views

Disc quota exceeded, cannot create, copy, or move files… is there another way?

I'm sshing into a remote server to complete some work. I tried to edit a file in nano, but realized, after saving and exiting, the file (quite a lot of work) was empty. Apparently, my disc quota has ...
-1
votes
1answer
35 views

Which subsystems exist in Linux for general purpose configuration storage?

I'm looking for a listing of general purpose configuration storage subsystems on Linux. I have tried looking for it in the documentation but I got no further then the standard configuration storage ...
0
votes
1answer
15 views

kubernetes PersistenceVolume NFS IP change

We are running kubernetes on centos7 on premises from past 3years, Recently our NFS storage device was migrated to different VLAN and there was a change in IP address, now none of pods are functioning ...
1
vote
0answers
320 views

How can one use Nvidia RTX IO on Linux to allow the GPU to directly access the storage (SSD) with only a slight CPU overhead?

I saw in the 2020-09-01 Official Launch Event for the NVIDIA GeForce RTX 30 Series that the RTX IO in the Nvidia GeForce RTX 30 Series allows the GPU to directly access the storage (SSD) with only a ...
0
votes
2answers
49 views

Red Hat Enterprise Linux Server release 6.7 - Finding SAS & SSD Disks Info

I have a Red Hat Enterprise Linux Server release 6.7 system. I want to find SAS & SSD disks parts and which parts combine to form which mount points on system or database (Oracle 11gR2) level. For ...
0
votes
0answers
40 views

df is not displaying the entire space on device

The command df -h outputs the following Filesystem Size Used Avail Use% Mounted on udev 1.9G 0 1.9G 0% /dev tmpfs ...
2
votes
0answers
185 views

Why am I getting this “File exists” error trying to mount unmounted filesystem?

Help greatly appreciated. I have a hot swappable USB C 3.1 5 bay storage device (https://www.amazon.com/dp/B07VMK6ND7/ref=cm_sw_r_cp_taa_BETlFb399BQF4) attached to a Debian box. 1st 2 bays are a 4tb ...
0
votes
0answers
24 views

Can Postgres data_directory be Moved to Block Storage on OpenBSD?

Trying to figure out if we can switch Operating System from Linux (Ubuntu) to OpenBSD. Moving the Postgres data_directory to the Block Storage works flawlessly on Ubuntu/Debian e.g: https://www....
1
vote
2answers
87 views

Is it safe to remove contents from var / swapfile / tmp?

The thing is /home has only used 11GB whereas /var uses 14GB, /temp 11GB and /swapfile 2.4GB Can I safely do sudo rm * in the last three directories? Contents from sudo du /var | sort -n | tail -20 ...
0
votes
0answers
18 views

After ejecting a disk from a SAS expander/shelf, reinserting into the same slot isn't detected

I have an HPE 3PAR M6710 SAS drive shelf connected to an LSI SAS9200-16e card. The system is running Debian Stretch and I've updated the firmware of the LSI card to 20.00.07.00. Disks are successfully ...
0
votes
1answer
27 views

How does a utility 'fio' perform VFS like operations on raw unformatted devices with no filesystem on them?

I understand that one cannot do VFS operations on a medium with no filesystem. Given that, how does a utility like fio perform VFS-like read/write/seek operations on raw devices?
0
votes
2answers
67 views

Can VFS read/write operations be performed on an unformatted storage device in Linux?

As per my understanding, READ/WRITE etc are file system operations in linux. The file systems registers callbacks with the Kernel (VFS) and are in turn called by it when the particular FS is detected ...
0
votes
1answer
35 views

Should I use df or du to calculate space to use for partitioning?

I want to back up /home dir, but the sudo du -h /home | tail -n1 shows 22146824 /home however df -h shows: /dev/sda5 54G 22G 30G 42% /home 22*2^30 == 23622320128 The later number is ...
1
vote
1answer
151 views

Is there a way of “merging” NFS shares? [closed]

Currently , on the laboratory I'm working on, there are three NAS: 2x Seagate NAS Pro with 15TB (RAID 5) 1x FreeNAS machine with 9TB (RAID 0) All of these are used through NFS shares mounted on ...
1
vote
0answers
63 views

LVM: on simple raid1 with two legs Cpy%Sync never reaches 100% and always stays at 99.99%

On simple lvm raid1 with two legs Cpy%Sync never reaches 100% and always stays at 99.99%. lvm> lvs -a -o name,raid_sync_action,sync_percent LV SyncAction Cpy%Sync safe ...
0
votes
1answer
10 views

How to change journal attribute in Hitachi F900

To configure Hitachi Universal Replication, I need to change the journal attribute from initial to restore. How can I do this?
1
vote
1answer
105 views

Do file systems affect the available storage space?

I have heard some group discussing file systems (btrfs vs ext4 and something like that) to use in Linux on computers with less disk space (like 32GB ideapad, notebook etc.). Does the filesystem choice ...
0
votes
0answers
49 views

Clear unused space in KVM Virtual Machine

I have a sparse Virtual Machine. When I boot VM and df I get this /dev/sda1 98G 3.4G 90G 4% / When I check size of qcow2 image ls -sh 6.2G Image.qcow2 Image size should be 3.4G like used ...
0
votes
0answers
17 views

lun on raid 6 recoverable?

Raid 6 was on 8 drives, 2 failed. Qnap rebuilt the raid on 7 drives, raid rebuilt on new drives one at a time. That was a week ago and they've gone silent. Reaching out to see if anyone else can ...
2
votes
1answer
93 views

Flatpak taking too much storage

When I run flatpak list -d --app --runtime I see the following … … … Version Branch Arch Origin Installation Ref Active commit Latest commit ...
0
votes
0answers
17 views

restore data from internal storage of android phone

I am struggelling with the file recovery of an internal storage of an android phone. I made a dd copy of the /dev/sda device which includes the system and userdata and some other partitions of the ...
0
votes
2answers
170 views

To avoid wearing out SD card containing the OS, is it better to have two partitions on an external solid state drive (OS + storage)?

Just to say, I have posted this question on the Raspberry Pi stack exchange, but I think it is a general Linux question (at least on the basic level to which my own knowledge extends), and that people ...
0
votes
0answers
13 views

Reducing amount of data on remote server

I have a vague question.. which is hard to Google on, so using stackexchange might be more useful. The current situation is local computer: Ubuntu 16.04, not much storage space (~100 Gb) Remote ...
0
votes
1answer
22 views

How to partition the operating system with a small disk

I would like to know what partitioning scheme in RHEL7 is more recommended to configure on a server with little disk space where an Oracle 18c database will be installed. On the RedHat site they ...
0
votes
0answers
11 views

How to recover a file when sectors aren't in order

I had 2 files of the same format on a ext4 formatted flash memory (file1.imp and file2.imp). I accidentally deleted file2.imp. So after cloning the stick with dd, I am working on finding what blocks ...
0
votes
0answers
40 views

Swap content and partitions of two large drives without space to store both

I have a 512gb ssd which I use to store much of my backups and data, and also have a 1tb ssd which isn't being used much. I've been wanting to swap them, but I don't have another drive that is large ...
0
votes
0answers
11 views

Scalable and distributed file-system to store huge and fast growing number of small files

I need to store the the result of 50000+ websites crawl. I'm currently relying on 10 HDD in RAID6 on a single machine that physically stores files ( now 400.000.000 files that weight 50TB ) and an ...
0
votes
2answers
126 views

procedure with multipath and lvm - migrating to new storage array

I have an older redhat (5) server that needs to have 9 array filesystems moved to a new array. I'm seeking some assistance on the best way of doing this and how the process works. The data is being ...
0
votes
0answers
29 views

Unable to remove a storage device in Debian10

Until Debian 9, starting from 6 maybe, I usually removed storage devices (SATA consumer disks) by sending as root (after flushing buffers and unmounting fs): echo 1 > /sys/block/*device-name*/...

1
2 3 4 5
8