Questions tagged [hard-drive]

Questions about hard disks' performance, issues, tips, and software.

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Soft quota on GPT partition

I have a GPT partition on Windows server which is shared over the network and works with raid controller. i want it to be extended automatically when reach to it's limit and users are adding files to ...
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63 views

How can I secure erase a drive using Powershell?

Does Powershell have a built-in way to secure erase a disk? By secure erase, I mean writing random data or all zeros to the entire disk. By disk, I mean the whole physical disk, not individual files, ...
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How can I recover data from a five disk raid 5 on HP Proliant DL 380

How can I recover data from a five disk raid 5 on HP Proliant DL 380 where four of the five disks are reporting a SMART error. I have some critical data on the failed logical drive and checking online ...
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Device Managed SMR - How does controller detect empty space?

Does the controller of a device managed SMR hard disk detect a format (say with ExFat) and start writing with empty shindles? I do encrypted Time Machine backups to an external SMR drive and recently ...
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How should I interpret disk IOPS listed by cloud hosting providers vs. those listed by drive manufacturers?

When I look at disk (block device) storage options from various cloud hosting providers, I usually see numbers such as : Google Cloud (Zonal SSD) : 15.000 - 100.000 read IOPS OVH Cloud : (High Speed /...
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Disk Support HP 400 SAS controller [closed]

I receive a months ago an HP Proliant DL360 G5 with an HP Smart Array P400i Controller with 256 Mb, i have 2 sas 10k 72 Tb disk and i want to upgrade. I buyed 4 HDD SAS 10K Hitachi 450 Gb, but the ...
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Failed to extend disk with free space [duplicate]

I have a problem with extending my disk space with newly added free disk space on cloud hosting. When I try to create a new parition from 2GB free space using cfdisk, it fails with an error: All ...
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1answer
38 views

Dealing with an ATA error [closed]

my Xubuntu 16.04. produces a non-stop ATA error message. Here is the output of dmesg [ 4547.943159] ata7: hard resetting link [ 4548.657810] ata7: SATA link down (SStatus 0 SControl 300) [ 4548.657824]...
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Do I need to replace my NVME SSD?

I have a simple server setup: 2 NVME SSD disks (both SAMSUNG MZVLB1T0HALR-00000 for 1TB) united into RAID0. OS Ubuntu 19.04 Today my system stopped responding. Reboot didn't help. I connected via KVM ...
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31 views

Sudden spike in Centos free disk space

I have a VPS with 120GB of total disk capacity. In the past couple of months, our usage surged and since we have been within 95% of used disk space. Anyhow, a couple of days ago, I've identified large ...
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ML350p Proliant Server Gen 8 - Can't Rebuild Raid 1 New HDD (Diff Firmware)

I'm having an issue on our HP Proliant ML350p Gen 8 Server. A drive was flashing amber/green and had the health led stating degradation (amber). We bought an exact replacement HDD, upon arriving I ...
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65 views

HDD SATA speed setting

I just noticed this info from smartctl Does that mean I'm running inferior SATA II speed? If yes, how do I enable SATA III speed? smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-37-generic] (local ...
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38 views

NAS not recognizing hard drive

My work has a Thecus N89000 NAS with 5 hard drives, RAID 5. We had a power outage last week and when power returned the NAS was unable to find RAID and no network folders are found. In the admin ...
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219 views

How to interpret conflicting status data between `smartctl` and `mdadm`?

I have a HDD which is a member of a RAID10 array. smartctl and mdadm give me conflicting indications of its status. smartctl claims that the disk is FAILED: $ sudo smartctl -H /dev/sdf smartctl 7.0 ...
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Shingled magnetic recording(SMR) device managed - sequential write performance optimizations

recently (2020-05) many HDD producers were caught silently replacing CMR lines with SMR disks, which brought more exposure to the whole concept. It seems that most device-managed SMR disks first ...
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51 views

Mysterious, intermittent Read I/O on Ubuntu 18.04 based EC2 server - iotop shows no disk reads

I have an EC2 server based on Ubuntu 18.04. With CloudWatch detailed monitoring enabled I'm seeing spikes of Disk Read Operations that last less than 1 minute (shown as 1-minute spikes on the graph) ...
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25 views

Transferring data from netbook hard drive to laptop

Recently, I got a new hp laptop (model: hp laptop 15-da1xxx) after my neo netbook crashed and couldn't display anything on its screen. Unfortunately, all the important files and videos from the ...
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Process blocking or disk corruption? Very high load + wait times, but low CPU/memory use

I am using a vServer that is suddenly experiencing very high wait times (10/20/30 seconds) or even timeouts on basic requests since yesterday after being in use for over a year without any problems. ...
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2answers
51 views

Why are concurrent downloads faster

Many download managers like this, this and this support downloading a file over multiple parallel connections, one per thread. The concept is that each connection will download one part of the file ...
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19 views

Drive failing SMART self-test, but rewriting the affected server does not reallocate it

I have a drive (a Seagate Momentus 7200.4 2.5" 7200 rpm drive of 500 GB, device model ST9500420AS) which is behaving strangely. I know the answer is probably just "throw it away" but I'm curious to ...
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81 views

Huge MFT and slow performance

I have a Windows Server 2012 R2 with huge MFT and slow performance when listing file in folder. Filesystem is about 350.000 files but in past many millions file was created and delete with crap Backup ...
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fsck on disk while Linux machine is up with runlevel N 5

we have linux machine , and we did the disk repair as the following umount /grid/sde fsck.ext4 /dev/sde e2fsck 1.42.9 (28-Dec-2013) /dev/sde: clean, 103867/1310720 files, 4725204/5242880 blocks this ...
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23 views

Possible to run a G-Technology G-SPEED Q with only 1x hard drive installed?

I picked up an old G-Technology G-SPEED Q that had had all of it's internal drives removed. It previously held 4x 2TB hard drives that it could run RAID 0 or 5 accessible via USB 2.0, Firewire 800 and ...
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55 views

How to perform hard disk repair from terminal

I have a corrupted hdd and I want to fix the issues. The problem is that during this situation I can not access my PCs in my office so I am ssh them from my home PC, and so I wonder if there is any ...
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41 views

Very Low IOPs on Array of 16x 15K SAS Drives

I'm having issues with one of our servers that is running 16x 900GB 15K SAS drives in a RAID 1+0 Array on a PERC H710P, under normal load its doing ~450 IOPs (almost all writes) and has a backlog of ~...
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27 views

smartctl selftest read failure an 4 drives (Raid6) at the same LBA

I just repurposed 4 drives that where out of use for a long time and installed arch linux (raw discs -> mdadm -> dmcrypt -> LVM -> ext4) on them. While creating the LVM i got "ATA read errors" for ...
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61 views

Importing a Raid1 single disk and use it as a drive

I had an Intel raid1 disc array (3tb each) and had to rebuild the system. Now I have both disks but really don't need raid anymore as I'm just planning on using backblaze to backup my data on the PC. ...
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1answer
108 views

HDD spins up spuriously for no reason

I have four HDDs in my NAS. Three (Western Digital, all the same model) are put in standby mode (spin down) by hd-idle and they stay in standby until I use them. The reason I use hd-idle and not the ...
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17 views

Is it possible to join 2 disks together for daily increased files saving?

Now on my server, we have 20GB disk size. We use it for daily backup with this path: /var/lib/backup. Filesystem is on /vda. But it's small. It will be used out in future soon. So we added another ...
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78 views

Testing faulty disk

I have a degraded RAID-1 setup and I'm trying to troubleshoot the problem whether it's completely dead (and need to send the drive back to the vendor) or it can be brought back. So I ran smartctl: ...
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How to map a UUID directly to both a device name (e.g. /dev/sda1) AND a mount point (e.g. /mnt/home2)?

I know how to map /etc/fstab to the mount point with the device name: /dev/sdb1 /mnt/home2 ext4 usrjquota=quota.user,jqfmt=vfsv0 0 0 This practice is however highly ...
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30 views

smartctl harddisk check doesn't show Attribute

today i install on my linux server the app smartmontools, after testing my hardrive (raid1) he doesn't show the Attribute. After the command smartctl -a /dev/nvme0n1 ,i get the result without ...
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63 views

Is my server drive on SATA2 or SATA3 based on this output?

smartctl output: # smartctl -a /dev/sda | grep SATA SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s) dmesg output (empty): # dmesg | grep SATA hdparm output: # hdparm -I /dev/sda | grep ...
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lmd(linux malware detect) maldet -m --monitor, impact on performance [duplicate]

Maybe there are other places that talk about this, but I didn't found them. I want to know if someone have measured the impact that has having the maldet --monitor activated on the computer. I'm ...
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1answer
26 views

Ubuntu Not Detecting Free Space In Root Partition

My server has a 40GB HDD and runs Ubuntu 18.04. The output for the command: sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL returns: NAME FSTYPE SIZE MOUNTPOINT LABEL loop0 squashfs 91....
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41 views

nginx + php-fpm extremely high amounts of data written to disk

We are facing a problem with extremely high data writes to disk and huge amounts of traffic over loopback interface. Environment: Debian 10.3 (4.19.0.8) - virtualized in hyper-v nginx/1.14.2 php-fpm ...
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1answer
79 views

qemu-system_x86-64 can you add a physical hard disk to a virtual machine without being root

As it is on the title I want to add a physical partition to my VM without having root privilege. Is it possible from Linux and how should I do this by using only qemu-system_x86-64 ??
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PERC 5/i Incompatible with Toshiba SAS Drives

I have a PowerEdge 2950 with 2x Dell 146GB SAS Drives. (ST9146802SS, Manufactured by Seagate) I recently purchased 4 600GB Toshiba SAS drives (AL13SXB600N) for a NAS array, but when I inserted them ...
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22 views

Whats the meaning of the grid with white dots in the back of a hard drive?

I've noticed that some of my hard-drives have a grid with the white dots in them. Some hard drives do have the grid, some of them don't. What is the meaning of the grid? Additionally, what do those ...
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1answer
40 views

“Hot plug replacement too small” although disk is of same size

On one of our servers, a disk failed that was part of a RAID 5. I replaced that disk with one of identical size. However, the RAID does not start to rebuild. If I check the status of the disk with ...
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1answer
53 views

LUKS encryption on which layer?

Option1: Linux Partition -> LUKS -> LVM Option2: Linux Partition -> LVM -> LUKS Which stack is better from system load aspects? Background: On my Linux server (CPU AMD Opteron 6338P, LSI 3ware SAS /...
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79 views

Can I configure RAID 1 with production server running?

I am facing issue configuring RAID 1 with currently running production server (Ubuntu 18.04 LTS). Currently my configuration is sda 8:0 0 1.8T 0 disk ├─sda1 8:1 0 1M 0 part └─...
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30 views

Mapped Harddrive, Bitlocker? [closed]

All the available letters to use for harddrive, i used up. So for my new harddrive, i used mapping. So i have mapped my new harddrive to a folder. My question is, is it possible to still get ...
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66 views

Is it safe to have virtual memory in servers?

I'm not sure if it's safe to have virtual memory (pagefile.sys) in servers? Safe in the sense of: Would it affect the data in the cache that is being handled by RAM? Does it conflict if it will be ...
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57 views

SAS drives not recognized in Netapp DS4486

To start off with, here are the relevant hardware specs: Dell R710 w/ Windows Server 2016 Dell PERC H200e Dell PERC H810 Dell PowerVault MD1200 w/ 03DJRJ controllers NetApp DS4486 w/ IOM6 ...
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1answer
746 views

Ceph hardware sizing calculator

I would like to calculate the Hardware sizing for a ceph cluster. There are so few references to the sizing, that I try to get these details here in the community. E.g. what shall i have depending on ...
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1answer
158 views

What is the risk of RAID 0 for a *single* disk versus no RAID on that disk?

I have a server that I'm having trouble with getting the drive to show up without using RAID. However, that's different question. This question is about the problems running a RAID 0 on a root drive ...
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1answer
60 views

SSD does not show up in server without RAID

I have a server Supermicro SuperServer 6017R-72RFTP with the motherboard X9DRW-7TPF. I have a 1TB Samsung SSD. The SSD shows up when the server boots and in the BIOS, but when I go to install an OS it ...
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1answer
271 views

What is Split IO?

I'm trying to understand the meaning of split io/sec counter for physical disk in Windows Performance monitor and don't quite get the reason why the single IO operation might be split into several. ...
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39 views

Bash hangs when trying to create file or issue ls on raid mount point

I have /dev/sdb1 mounted to /media/zm_recordings. I'm using an LSI 9211-4i RAID controller with two 500GB disks in RAID 1. Megaraid manager shows the disks and volumes as healthy. (Screenshot at ...

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