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Questions tagged [ssd]

a solid-state disk (SSD)

1
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1answer
49 views

FIO reporting slow write speeds while DD reports fast ones

According to most disk benchmarks, sequential write speeds are typically very close to the read speeds. Mine are in the ~500MB/s range. $ dd if=/dev/zero of=tempfile bs=1M count=5120 conv=notrunc ...
0
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1answer
21 views

Why are there two home folders in my Ubuntu 18.04 installation?

I have successfully installed Ubuntu 18.04 along with Windows 10 on my computer (SSD 96GB + HDD 1TB). The SSD drive has two major partitions (excluding recovery and efi): Windows partition (...
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0answers
14 views

Back up and sync to mirror disk or image file

Let's assume a computer with 1 TB SSD and 2 TB HDD and an empty external 4 TB HDD for backup purposes. Now, to prevent data loss if one of the drives fails, a disk image or a copy of each file can be ...
0
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1answer
40 views

Unmount all your partitions to release/free up SSD

I have a machine with a single SSD and 3 partitions. I want to unmount the entire SSD while staying live so that I can run a firmware upgrade tool on the SSD. I know that unmounting your only disk is ...
2
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2answers
103 views
+100

Clarification Needed: Using Rsync to Move /usr

Context I recently migrated Windows 10 and Gentoo to 2 separate 250 GB SSD's and left my old traditional SATA HDD Drives in to use for Storage. I put Users on a HDD for Windows during a new ...
0
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1answer
266 views

NVMe: missing or invalid SUBNQN field

I cannot figure out how to get my NVMe disks recognized in a brand new system. No matter which distro I use, the dmesg output is the same: (Live CD) xubuntu@xubuntu:~$ dmesg | grep -i nvme [ 5....
1
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1answer
117 views

Installation of Ubuntu 18.04 from my USB fails with error code 23

I am installing ubuntu on a brand new motherboard (onto m.2 ssd) using an usb when I got to the part of extracting image from cp:///media/systemfile, it gets error. error code 23 with message: file "...
1
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0answers
253 views

Boot Error -> ipmi:dmi : Invalid offset : 0

I'm having the following error when booting my OS (Linux mint19 - mate): ipmi:dmi: Invalid offset : 0 I would appreciate if someone has more information about this. There's a ubuntu user here on ...
0
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1answer
29 views

Name this feature - automatically move block from a disk type to another?

I am not talking about cache. The main issue for me with cache is at the beginning the first block is searched through the slow disk, then put in cache. I want often read blocks to be definitively on ...
0
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1answer
29 views

Mac OS SSD failure/corruption

I was trying out new OS on my Macbook, now I started to install elementary on my primary drive and force quit the installation in middle.. which resulted in bad GPT partition. Now, when I contacted ...
0
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1answer
50 views

SSD broken? GParted output

Note - before voting down, please suggest how to improve my question. Thanks. The goal is to try to make my SSD work again. I would have formatted it using GParted, but a message "Input/output error ...
-1
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1answer
126 views

Manjaro: SSD not recognized in BIOS after installation

I've installed Manjaro 17.11.1 on my ASUS UX31A. Before there was ElementaryOS running on it without a problem. When I startup the system after installation the laptop enters BIOS directly. There's ...
0
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0answers
19 views

Using Smartctl or GSmartControl & other tools to scan/test many drives at once

I have a about 100-150 HDD and SSD's that I need to run some tests on. My servers can host up to 16 drives at a time, possibly 8-16 more if I add some more RAID cards, but either way what I need to do ...
13
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2answers
8k views

2018 Macbook Pro TB 1TB SSD

How can you get any version of linux to see the 2018 MBP/TB SSD during installation? I have tried nvme_load=yes in place of quiet --- with Ubuntu 18.04.1 and Xubuntu 18.04. df -h results ...
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0answers
27 views

Why do directories with many different files take up more space on my external SSD than they do on my root disk?

I have a root disk (SSD) on a MacBook Pro and an external SSD. I have some directories that contain many thousands of image files, and while copying these to the external SSD, I noticed that what ...
1
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1answer
209 views

dd copy from an OS HDD to PCIe NVME SSD, SSD can't boot

Test 1: dd if=/dev/sdb of=/dev/sdc /dev/sdb is a bootable OS HDD, /dev/sdc is another HDD, after executed the above dd command, the /dev/sdc become bootable. Test 2: dd if=/dev/sdb of=/dev/sdc /...
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0answers
363 views

How “LVM on Luks” or another full disk encryption affects SSD performance? [closed]

I read many articles about the performance impact of using full disk encryption and I very confused. Because, approximately all of them says that "do not use these encryption methods on an SSD, if you ...
1
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1answer
45 views

Tried to install debian on 2nd drive and now both drives are malfunctioning [closed]

I wanted to try Linux on my second SSD, so I downloaded the net install for debian. It would not connect to the DHCP, so I tried the full disk install. I used Rufus and UNetbootin to make an ...
0
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0answers
136 views

Different SSD and HDD sizes on Linux

I have read this - partitioning using 2 hard disks (SSD and non-SSD) in linux and other related questions. I configured a local file/web server using Fedora with default LVM settings on a 500G SSD, ...
3
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1answer
439 views

CentOS 7, RAID-1, and degraded performance with SSDs

I am preparing PCs built with 64GB RAM on the Gigabyte AORUS X299-GAMING-3 motherboard, ordered for Cent OS 7 use, with RAID-1 on a pair of Intel 545 Series SSDSC2KW512G8X1 SSDs. The configuration is ...
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0answers
30 views

Only write back changes when restoring a disk image with dd

Given a physical disk and an image created from it, I want to write the image back onto the physical disk, but only write the changed bytes or sectors. The use case is restoring images on an SSD - ...
0
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0answers
57 views

find all block devices (hdds and ssds) using sysfs

Cant figure how to enumerate all physical disks, like hdds, ssds, NVMes and maybe flashdrives connected to machine and filter out all these loop devices, ram disks, cdrom and floppies. I've checked ...
1
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1answer
295 views

M.2 NVMe PCIe boot times much slower than old SATA SSD

I've used dd to clone my old SATA SSD into a new and larger NVMe model on a Dell XPS 9360 and switched the SATA Configuration from the original RAID On to AHCI to get it booting. It works, but the new ...
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0answers
182 views

Fedora 28: SSD not being found

I am having trouble installing fedora 28 server. SSD aren’t being detected by the installer. I have seen that changing bios SATA from RAID to ACHI solved some users issues but when I do my system ...
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0answers
77 views

USB UAS - USB3.0-SATA SSD write throughput slowdown after reconnect

I'm working with a USB3.0-SATA enclosure, with a JMS567 chipset, connected to a Kingston SSD. The USB host controller is a DWC Superspeed USB3.0 with associated PHY, and the host system is a MIPS-...
1
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0answers
222 views

Cannot enable smartctl Auto Offline Data Collection

smartctl --offlineauto=on /dev/sda [-d TYPE] will not enable Auto Offline Data Collection as reported by smartctl -c /dev/sda which shows Auto Offline data collection on/off support Auto Offline ...
1
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0answers
158 views

Fedora not detecting my new SSD device on install to hard drive program

I bought an older Thinkpad W500 which has windows 7 and a HD with the intention of installing Fedora/linux. I have done this before on another windows laptop. This time...i purchases a new crucial ...
1
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0answers
41 views

Maximum write performance for USB-connected SSD [closed]

For hardware reasons I don't want to get into (and have absolutely zero power to change), I need to set up an SSD over a USB-3 (type A) bus that is optimised for write performance. In my use case, I'...
1
vote
3answers
85 views

Transferring entire drive image over to ssd

So, I'm replacing my laptop's 1TB hard drive with a 1TB sata ssd, and I'm wondering how to transfer the files from one to another. I'm dual booting kubuntu 17.10 and windows 10, and I'd like to keep ...
0
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2answers
69 views

Does Duplicity modify atime when backing up?

My data resides on a SSD and — thanks to re-writes and Write Amplification — any modification of an atime will result in not only the inode being modified, but the whole block that it resides on being ...
1
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1answer
330 views

Backing up to a local SSD taking a lot longer than expected

On a fresh Ubuntu 18.04 system I decided to give Deja-Dup a go. It's just a GUI for Duplicity (which uses rsync). About 850GB of data needed to be backed up. Source SSD was NVMe. Destination SSD ...
0
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1answer
219 views

What to do about swap on a server with an SSD [closed]

I'm wondering , what is the recommended thing to do for a swap partition on a server-like system with an M.2 PCI SSD? I'm wondering if it's wise to put swap on that device, because it's so fast that ...
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0answers
142 views

ata7 softreset failed… reset failed, giving up

I'm getting the error ata7: softreset failed (device not ready) four times during boot then it says it's continues into an recovery mode after it fails to mount the device. In recovery mode: lsblk ...
0
votes
1answer
48 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 ...
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1answer
534 views

SSD backup image

Sorry if this is a trivial question, but I am completely new to SSD (and not that expert in Linux either). Context: I want to backup the SSD of a new laptop so that I can safely reinstall it (no user ...
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votes
1answer
40 views

I ejected Bootable SSD from ubuntu UI accidentally, oops?

I was trying eject the USB stick drive from my Linux machine, when I accidentally clicked on wrong drive and ended up ejecting the SSD drive. Now that SSD also happens to the bootable SSD With stored ...
0
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0answers
157 views

fix bad block on ssd in EFI partition

I am having issues with my SSD. I have had corrupted files and logging me into Ubuntu Gnome takes longer than it should. I have at least one bad block that requires manual treatment, so I tried to ...
0
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0answers
23 views

reFind Corrupted SSD?

I was using a Macbook Pro 2015 with a 20 GB partition for Linux and rest Mac OS X. I had a security update for MacOS Sierra and did that. After that my reFind boot loader stopped showing up. Then I ...
1
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2answers
82 views

Visualizing raw bits of disk

Is there a command that allows me to "see" the raw bits of a disk? In other words, to ignore the filesystem and output the "big picture" of the literal zeros and ones as per the disk. (Ideally not ...
0
votes
1answer
1k views

Is it possible to reload lvm.conf without reboot?

I enabled issue_discards in lvm.conf file on machine with ssd and I'd like to perform blkdiscard on one of logical volumes. Can i do that without rebooting machine? I'm able to unmount physical volume ...
0
votes
0answers
233 views

Failed to start media check on /dev/sda

I am trying to install CentOS Mini 7 on my Dell E7240 but have no luck for the last 2 days. So far I tried Downloaded Cygwin and dd if=pathToISO/Centos.iso of=/dev/sdb bs=8M Always seeing The media ...
12
votes
4answers
4k views

How does Linux know where its swap partition is?

I've read that you need to put the swap partition on HDD rather than SSD. My questions are the following: When and how is the "checking" done by the distribution (or something else) to find its ...
0
votes
2answers
317 views

Using dm-cache for transparent ongoing backup

Is there any chance to use dm-cache for ongoing SSD backup? I want to have very fast and cheap eventually consistent failure resistant partition. Use case: We have regular ssd (1Gb) (cache) + hdd (...
1
vote
1answer
373 views

Are BtrFS snapshots killing my SSD?

As I know, BtrFS snapshots don't actually copy data. I suppose, actual copying executes on every change of snapshoted data. So is it right that BtrFS partition on SSD with enabled Snapshots doubles ...
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0answers
36 views

Hard Drive Partitioning software considerations

My users have to wipe and format drives on an almost daily basis in a linux environment and they are not very apt with the command line. I want to build a tool that will let them plug in their ...
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1answer
1k views

File system check of the root filesystem failed, manual fsck can not fix [closed]

Linux Mint 18 on SDD with LVM ext4 Booting in recovery mode shows: ata3.00: status: { DRDY DF ERR } ata3.00: error: { ABRT } ata3.00: configured for UDMA/100 sd 2:0:0:0: [sdb] tag#0 FAILED Result: ...
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0answers
65 views

Disks aren't showing in /dev/sdX

I got a 2nd SSD installed in my system, and for some reason it's not showing up in /dev/sdX nor is it being shown as a mountable drive. The partitions and the disk exist, but for some reason Linux ...
0
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1answer
893 views

SSD partition aligned

I need to prepare the file system of an SSD disk in a way that a Database Administrator pointed me to, which would be a way optimized SSD to work. I have a disk: SSD: Samsung 500 GB SATA III 6Gb/s - ...
0
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1answer
60 views

Reduce wear of SDD / EXT4 / Frequent overwrites of files

I'd like to configure GNU/Linux in a way that the wear of the solid-state disk (SSD) is reduced as much as possible. Setting: Some programs are frequently ran that overwrite small debug output files (...
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0answers
230 views

How should I partition a 250 GB SSD for my laptop?

I'm replacing my laptop's HDD with a 250 GB SSD. Right now, the laptop has just one partition mounted on / (on a 228 GB HDD). I could just do the exact same thing, but on desktops I'm used to do ...