Questions tagged [storage]

The tag has no usage guidance, but it has a tag wiki.

Filter by
Sorted by
Tagged with
0
votes
1answer
188 views

Multipathd config for LSI HBA 3008

I have 5 jbod attached via LSI-SAS3008 to controller. I'm using Arch-Linux 4.14.41-1-lts & multipath-tools v0.7.6 (03/10,2018) My problem is when a disk starts to give I/O error and starts to ...
1
vote
2answers
781 views

Mount Oculus Go's internal storage under Linux?

When connected to my Linux machine, dmesg shows the USB device without identifying or providing a device path in /dev. What steps are necessary to mount Oculus Go's internal storage under Linux? ...
2
votes
1answer
775 views

Why is fio seq_writes so much faster than dd?

I have a zfs server, where I ran a couple of dumb tests just for understanding, and it puzzles me. Context:- FreeBSD 11.2, ZFS with Compression enabled, SAS HDDs, RAIDz2, 768GB of memory. Both ...
0
votes
1answer
232 views

Mount storage from Fiber Channel SAN on Oracle Linux

I have a scenario where my shared storage is available at SAN (Storage Area Network). The SAN is available through Fiber Channel. I am installing some oracle product and want to use storage from SAN ...
1
vote
0answers
61 views

How can I reduce the size of my backintime snapshots?

I'm using backintime to create versioned backups of my root partition, and I would ideally like it to be making these snapshots quite often, daily if possible. However each snapshot at the moment is ...
1
vote
0answers
366 views

Ceph for small files?

Currently I have 6 dedicated servers in a data center. Two Servers are Mailservers running exim and dovecot (Maildir) and 4 Webservers. Each Server has two 3TB HDDs. My current problem is, that we ...
1
vote
1answer
3k views

persistent device naming for NVMe storage devices

The Linux kernel's simple naming for a storage device (e.g. /dev/sda, /dev/sdb) can change randomly across boots. Is that true for NVMe storage devices too? These have names such as /dev/nvme0n1p1 and ...
4
votes
3answers
820 views

Store a custom serial number on a USB flash drive, immune to overwriting

I'm working with massive amounts of USB flash memory. I'd like to be able to track events regarding the USB drives. Specifically: I perform f3 tests, format the drives and write data to them. I'm ...
2
votes
1answer
46 views

How to replace a disk mounted to a specific folder without losing the stored data

Disk 1 is mounted to /storage, it is 99% full and I am out of spare connectors. What I want to do is replace Disk 1 with a bigger drive (Disk 2) in a way that the new larger disk will contain the same ...
4
votes
2answers
4k views

tmpfs usage and resizing

I am trying to understand the stuff. I have a machine with 80G storage. It looks like that: Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root 50G 7.1G 43G 15% /...
0
votes
1answer
75 views

How to concatenate 2 or 3 physical disks to create one larger usable volume in Centos7

I will like to apply the concept of concatenation of multiple physical disks and create one larger disk for my my storage, and I am using Centos7 as the my server. I have 2 types of disks: one is an ...
0
votes
0answers
23 views

What should I notice for the USB stick use as installer?

I have a few questions about the USB stick used as an installer in Linux. 1) Should I leave extra space after running dd? So for Windows user, you might be familiar with rufus, with rufus you can ...
0
votes
1answer
118 views

Recovering lost information

I installed a LVM storage on my computer and I had very important information inside /HFT. Here is the way I installed that LVM storage: sudo pvcreate /dev/sdb1 /dev/sdc1 sudo vgcreate VG /dev/sdb1 ...
-1
votes
1answer
299 views

Moving space from one partition to another? /dev/nvme0n1 -> /dev/xvda1

I ran out of space on "/dev/xvda1" and I want to pull some space from either "tmpfs" or "/dev/nvme0n1" into "/dev/xvda1" % df --print-type Filesystem Type 1K-blocks Used Available Use% ...
1
vote
1answer
751 views

How can I merge two hard drives on an external linux server, without losing data already uploaded to one?

I have a media server running Plex over on Hetzner, but am in no way a server pro. I failed to realise that my two 2.0TB hard drives would be completely separate, so instead of 4.0TB of space in my ...
0
votes
1answer
65 views

My disk is full - have I made a mistake partitioning?

I am a new Linux user, and I installed Ubuntu from scratch yesterday for the first time. I am dual booting Ubuntu and Windows 10, so following these instructions, I partitioned my drive to leave ~...
1
vote
1answer
2k views

using overlay2 on CentOS 7.4

How do I install and enable the overlay2 storage driver on CentOS 7? I have done many google searches on this and I see that version 7.4 is required. So I typed the following commands to confirm ...
0
votes
1answer
67 views

How to increase lvm root parition

I am running a centos vm inside freenas. The vm disc is currently 20G and needs to be increased to 60G. I increased it in freenas (edit zvol in the gui). Then I used gparted from a live cd to extend ...
0
votes
1answer
51 views

What is best parition format and raid setup for millions of small files? [closed]

If I have millions of small files distributed by folders, what would be the best parition format and what raid setup in order to manage them as fast as possible ? E.g search in all files, find files ...
0
votes
0answers
44 views

Command to know if file is created

I have a disk of 2TB and looking for command to know when, where, current size and by whom this file was created. Linux commands like 'Find' or 'ls' is working but these commands are slow for storage ...
1
vote
1answer
97 views

How do I enlarge /home and /swap partitions on GNU/Linux?

Well, I've gotten myself into a sticky situation. I've just upgraded my laptop's RAM from 8 GB to 16 GB. Now, I know that Linux swap partition serves as a "home" for RAM on most Linux distros, ...
1
vote
1answer
388 views

How to change the storage pool size in Centos with Kvm-Qemu?

I have 1 Tb hard disk and Centos 7 and Kvm-Qemu have been installed. Now I have created a vm of 4gb ram, 40 Gb disk space. The VM came up. Now one more VM am trying to create with same 4gb ram and ...
-1
votes
1answer
69 views

Do rolling releases inevitably cause higher fragmentation over time than point releases? [closed]

Let's compare Debian Stable as a candidate for point releases and Arch Linux as a candidate for rolling releases: Does a rolling release by default cause higher fragmentation on the drive than a ...
1
vote
0answers
238 views

Proxmox hyper-convergence and storage redundancy

What kind of storage redundancy (data blocks at least on two different physical machines) does Proxmox Hyper-Convergence provide? Nutanix does it with a controller VM (CVM), VxRail with VMware vSAN ...
0
votes
1answer
181 views

Lustre and HPC configuration

I have an HPC cluster with 22 nodes, and one head node as a master running Rocks Cluster OS (which is based on CentOS). The nodes and master communicate with private network (10.10.0.0/16). And we ...
1
vote
2answers
144 views

Cloned a smaller hard drive onto a larger one. Need to expand an encrypted partition

As mentioned I bought myself a bigger hard drive (1TB to 2TB, keeping my old one for backups). I dd the small one to the big one so I have all my data on my new drive. The only issue I have that 1TB ...
1
vote
2answers
1k views

How to make journald increase logs storage capacity?

I would like to have persistent logs via journald. I created /var/log/journal and reloaded the service. Now logs are saved on the disk. But the log size limit is low. I added /etc/systemd/journald....
2
votes
3answers
503 views

Merging partitions in Debian

I have recently inherited someone else's problem with a linux server. This is one of those all in one debian based lamp setups. It recently ran out of storage and no one seems to know anything about ...
3
votes
1answer
8k views

Best way to delete large amount of files by date

So, I have a folder with alot of files, they are generated by second and need to be kept in I only can delete them after 90 days, so as you may guess, I would generate tons of files and then after the ...
0
votes
0answers
119 views

How to create a RAID device with specifying a size ?

I want to Create a RAID 0 array using the two partitions /dev/sda2 & /dev/sda3 (They are both of size 3G each) The properties of the array is the following: 1. SIZE = 2048MB 2. Label=RAID_0 3. ...
0
votes
2answers
116 views

ceph-mon fails to start on rasberry pi (raspbian 8.0)

ceph-mon fails to start on rasberry pi (raspbian 8.0) I recently purchased 3 raspberry pi nodes to create a small storage cluster to test with at my home. I found a couple of procedures on setting ...
0
votes
1answer
42 views

How to monitor/remove dowloaded movies and music from network storage? [closed]

I am looking for some solution to remove or list all movies that are dowloaded on our network storage. We are running short on free space and I noticed that a lot of people started downloading movies ...
2
votes
1answer
7k views

snap /dev/loop at 100% utilization — no free space

Free space: thufir@dur:~$ thufir@dur:~$ df -h Filesystem Size Used Avail Use% Mounted on udev 3.9G 0 3.9G 0% /dev tmpfs 794M ...
0
votes
1answer
567 views

virsh pool storage basics

How or where were these pools created? Where are configuration files? $ virsh pool-list --all Name State Autostart ------------------------------------------- default ...
1
vote
1answer
1k views

How to check if NAS is mounted and responding? [closed]

What is the command or script to check following for a NAS: It is mounted? (I used the mount command, but I'm not sure how to interpret its output) If it is mounted, then is it responsive? It is an ...
1
vote
0answers
241 views

Why does my system (w/ btrfs, hourly snapshots) “lock up” when cloning large repo or copying many files

Here's my situation. I use btrfs and snapper for its snapshot'ing capabilities. I take hourly snapshots of my work directory and the feature (cd .snapshots/hourly.2 then copying back old work) has ...
0
votes
1answer
1k views

How to take space from one VG and add it to another?

I've seen that /dev/mapper/VGP4--CHK-LVP4--CHK is running out of space. I would like to increase this. Filesystem Size Used Avail Use% Mounted on udev ...
0
votes
1answer
22 views

Creating large metadata table to map out storage

I would like to figure out how to manage my storage, which has been quite large. The idea would be to see unnecessary files, and archive/delete. At the moment, I am simply doing `du -h max-depth 1 ...
3
votes
1answer
2k views

How do you read and write from a specific address of an EEPROM from sysFS

I have a 24CS02 EEPROM on my I2C bus. I can successfully read it and have successfully written to the beginning of the EEPROM (ie from /sys/bus/i2c/devices/1-0050/eeprom). I am wondering if/how to ...
1
vote
1answer
414 views

CentOS 7 doesn't show first two drives on intel C606 SCU

I am using a SuperMicro X9SRi-3F motherboard, which uses the Intel C606 chipset and has a dual 4-port SCU with SAS capability. The HDDs I'm using are 4x WD Re's (WD6001F9YZ), and 2x WD Gold's (...
2
votes
2answers
43 views

Huge disk usage on development virtual machine running Centos 7

I'm using Centos7 virtual machine as development enviroment, actually, to host my local server and project files. All development is done on windows 10 with virtual machine attached as network storage....
2
votes
1answer
741 views

Where are Kernel global variables stored?

I am currently writing a Linux kernel module. I am aware that in case of userspace programs, uninitialized global variables (exported to other modules using EXPORT_SYMBOL) are stored in BSS segment ...
0
votes
0answers
208 views

Gparted can no create extended type or name partition

I have a 300gb hd with linux installed. It has a two partitions. The primary 30gb partition where the OS is installed. In addition, it has another primary partition that is 15gb. Then it has 236gb ...
0
votes
1answer
41 views

Marking filesystems as unremovable in CentOS

Disclaimer: Not sure to post to serverfault or here. Please transfer as necessary. I'm managing a CentOS 7.x terminal server. Recently, the filesystems on the server started to appear on users ...
2
votes
2answers
131 views

Preventing /dev/sda*, sdb* from being created, while leaving /dev/disk/by-uuid/* or /dev/disk/by-label/* intact

If I wanted to prevent the creation of /dev/sd{a,b,c,...}{,1,2,3,...} devices in my system, but still have /dev/disk/by-uuid/* and /dev/disk/by-label/* created for those disks, could I do so, sanely/...
0
votes
1answer
50 views

How to mount large drive

I have a computer with a 250 or so SSD and a new 10 TB drive. How should I mount the new drive? I have seen some examples on the web where the person just mounts it to a randomly named root path like /...
1
vote
1answer
9k views

df command shows 100% full, even after deleting files it shows same usage (100%)

Nand Flash storage partition shows as 100% full with df command. When manually calculated the usage it is about 7-80%(max) only. Deleted few files (say around 50~60MB), still df command output did not ...
1
vote
0answers
138 views

Use from multiple sessions of iSCSI

I have set the configuration file of iSCSI to attempt login at startup. The system creates two session with two different targets. How can I format and mount a particular node using the existing ...
1
vote
2answers
52 views

Will very large write/deletes affect performance of SSD?

Suppose I have a 512gb SSD on a Macbook Pro. I then want to temporarily (for a few days) store 300gb of content on that SSD. Then that 300gb will be deleted. If done multiple times, would this ...
1
vote
0answers
1k views

LUN larger than allowed by the host adapter

We have HP DL-360-g9 server which has HP240 Raid controller and currently we have total 4 disk installed 2 (Mirror) for OS and 2 (1TB) individual disk in LVM group. now we running out of storage and ...