A permanent data storage device used for storing and retrieving digital information using rapidly rotating discs (platters) coated with magnetic material in a rigid form factor (as opposed to floppy disks).
0
votes
1answer
30 views
How can I create an encrypted, file-system–agnostic, mountable volume?
At work, we have an iMac (running OS X) that shares a partitioned hard drive over the network. I'd like to back up to my partition from my Linux machine. I've attempted connecting via cifs, then ...
7
votes
5answers
257 views
Can I see what HDD I have installed? [duplicate]
I use lspci for pci devices and lsusb to list the usb hardware devices, is there something similar to list my SATA HDD model ?
0
votes
1answer
28 views
Installing a secondary drive in CentOS 6
I am new to Linux and CentOS so I may not be sure of the exact question to ask. It may be best for me to tell you what I have done. I installed a secondary 500gb HD to use for file share storage. I ...
-1
votes
1answer
60 views
Can not mount drive after installing windows vista
I have searched for weeks now and have not found an answer to my question. Hopefully you guys can give me a push in the right direction :)
Ok, here is what happened:
I have linux mint on a 1.5 TB ...
1
vote
0answers
24 views
How can I prevent smartd from reporting that it cannot find a disk?
I have smartd monitoring my hard drives. It works fine generally, but the following error window has been consistently popping up every 24 hours.
This email was generated by the smartd daemon running ...
1
vote
0answers
44 views
New harddrive does not show up in /dev
I am trying to add a second (unformatted) IDE hard drive to a QNX 6.4.1 VM (hosted through vmware's vSphere). Unfortunately, there is no entry for the drive in /dev (I think this is called an ...
0
votes
0answers
79 views
Linux 3.5 ext4 slow hdd performance?
This is a bit of a general question.
I have just installed Mint Linux 14.1, root is ext4 and rest are NTFS (dual boot).
I'm using a laptop, and I have always suffered from that annoying hdd ...
0
votes
2answers
60 views
increasing a logical volume
I need to increase the logical volume of the var directory, the maximum size of var right now is 10GB, I need to make it 50GB. I have a Centos 6 server.
The output of df -h is:
Filesystem ...
0
votes
1answer
109 views
External drive not being recognized
I am currently running elementary OS (a Linux OS based on Ubuntu so everything in Ubuntu works in it) - dual booting it with Windows 8.
I have a 3TB external hard drive (USB 3.0) that does not seem ...
2
votes
2answers
112 views
Where to find the VBR on the /dev/sda1 partition?
I have one built-in hard disk /dev/sda which looks like this:
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * ...
0
votes
0answers
18 views
How to associate device to sata port disk [duplicate]
I have 2 hard disks connected to 2 sata ports.
The disks are associated to /dev/sda and /dev/sdb.
These hard disks are in software raid so it happens that the system can go for some time with only ...
1
vote
3answers
152 views
How to mount multiple partitions
Is there a way to mount multiple partitions, or even all partitions, of a disk with a single command in Linux? Is there, perhaps, an option that the mount command accepts that would facilitate this? ...
2
votes
1answer
135 views
GParted messed up my partitions
Update: running testdisk I can actually see all of my files in /dev/sda1!
I wanted to install Windows alongside my Debian installation in order to play some games. In order to do that, I had to boot ...
2
votes
0answers
68 views
LVM keeping harddisk awake?
I have a Lenovo W530 running Arch with kernel 3.79 (for bumblebee) and laptop-mode is configured properly and running. It has one SSD (sdb) and one harddisk (sdb). The sdb disk has two lvm-volumes: ...
1
vote
3answers
67 views
Light linux for disk operations
I have old computer with Windows XP system and it started crashing randomly. I need light OS, which can be booted as Live CD/DVD in which I could copy all data from hdd to external hdd.
I have tried ...
1
vote
0answers
297 views
Mint 14 does not detect my first hard disk
I have two hardisks installed in my machine :
Samsung SSD PM830 SATA : 128 Gb
ST9500423AS ATA : 500 Gb
When I start Mint installer, it only showed me the 500Gb harddisk.So I partitioned it into ...
0
votes
0answers
229 views
RAID Drivers and Support for an AMD SB950 Chip?
I have an Asus Sabertooth 990FX R2 motherboard which uses the AMD SB950 chipset to create a fakeRAID array (setup for RAID 5 in my case). It is recognized as a RAID array in Windows after install of ...
4
votes
2answers
336 views
Recovering an ext4 filesystem with corrupt journal
I have a hard drive that seems to have developed some kind of hardware problem in the journal. This prevents the drive from being loaded. Running mount -r -t ext4 /dev/sda5 /mnt/root results in the ...
13
votes
3answers
630 views
How to know if a disk is an SSD or an HDD
I want to know whether a disk is a solid-state drive or hard disk.
lshw is not installed. I do yum install lshw and it says there is no package named lshw. I do not know which version of ...
0
votes
1answer
100 views
Encrypted USB 2.5“ to unencrypted internal 3.5” hard drive copy speed
I am moving data from an external USB 2.5" hard drive (encrypted with cryptsetup) to an unencrypted internal 1TB 3.5" hard drive on a GNU/Linux quad-core headless server with 2GB RAM, using Midnight ...
3
votes
2answers
96 views
Is it safe to only partially restore a disk image with dd?
I have saved my whole hard-disk with dd to an image file. The hard-disk contained some primary partitions formatted with ntfs, swap and ext4. I did it this way:
dd if=/dev/sda | ssh user@fastmachine ...
3
votes
1answer
234 views
Measure hard-disk read(), write() speed without caching in QNX 6.5
I am working on QNX 6.5 Operating system. QNX 6.5 supports POSIX APIs. I am trying to build an application which is used to evaluate performance of hard-disks. My application will read/write/read ...
4
votes
2answers
218 views
What happens when a hard drive fills up?
What happens when a hard drive gets full with Linux running? Does it lock the system? Or something else, or nothing happens?
I am using Ubuntu Linux.
11
votes
2answers
290 views
How can I be sure that a directory or file is actually deleted?
I know that most files, when deleted, aren't actually removed from the disk, and can be recovered later.
How can I ensure that a directory I had deleted will actually be removed from the disk? Are ...
1
vote
1answer
53 views
hosting my web portal on CentOS linux
I need to buy a VPS / dedicated server that provides a CentOS Linux with 4 x 500 GB harddrives in mirrored Raid. So that'd be 1TB of hard-drive space.
The way I keep my pictures on my website is in a ...
4
votes
1answer
76 views
Error(?) in output of the dd command
When I run the following command:
dd if=/dev/sda of=output bs=512 count=1
In the middle of the output, I see this text:
GRUB ^@Geom^@Hard Disk^@Read^@ Error^M
What does it mean?
4
votes
4answers
166 views
If I have an SSD and a hard disk in a system, can the SSD act as cache for the hard disk?
Say I have some partitions; one on a SATA drive and one on an SSD. I want to create a "virtual" hybrid disk. Is this possible?
0
votes
2answers
638 views
Create swap partition after install
I already have parititon contain data under lvm enviroment with centos 5.8
output of fdisk -l
root@server [~]# fdisk -l
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, ...
1
vote
1answer
105 views
When should I create a new volume group instead of a new logical volume?
I currently have 3x1TB physical volumes in a VG and a LV that spans the entire capacity of the VG. This LV is meant to store specific files.
Now I have another 2TB drive that I want to use LVM with. ...
1
vote
1answer
290 views
fdisk isn't showing my hard drive as properly formatted (but it is)
I've got 3 1TB drives which I've set up to use LVM. Here's the output of pvdisplay:
--- Physical volume ---
PV Name /dev/sda1
VG Name vgpool
PV Size ...
0
votes
1answer
62 views
Does RHEL 6 enforce software constraints on the number of SATA drvices that can exist on a system?
I came across the following blurb in some RHEL 6 training documentation:
The number of drives that can be installed on modern computers has increased. With port multipliers, it's relatively easy ...
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votes
2answers
206 views
Issue with bad sectors on a laptop hard drive
I had Windows installed on my laptop and suddenly one morning Windows couldn't start. Then I tried after formatting and for once it became possible.
I also installed Ubuntu as logical drive (deleted ...
2
votes
2answers
622 views
How should I prevent data corruption on an NTFS partition shared by Windows and Linux?
I use Linux for most of the things but I still need Windows sometimes. So, I have Linux Mint 14 and Windows 8 installed (dual-booting) on my computer with the following disk setup:
sda1: The 350 MB ...
1
vote
0answers
68 views
What changed in Linux kernel (2.6.22) that gives hdparm support for power-on in standby?
Hdparm man page lists for parameter -s:
Enable/disable the power-on in standby feature, if supported by
the drive. VERY DANGEROUS. Do not use unless you are abso-
...
2
votes
0answers
161 views
Local disc copy at 10MB/s! What could be the problem?
I am running a Debian 6.0.6 (before you ask). I have a regular desktop computer, nothing fancy... but when I copy a file using nautilus I am getting 10MB/s copy speed and the system is completely ...
2
votes
1answer
363 views
Unclaimed device in lshw
I have added in my computer a PCI Express controler card with 2 USB3 ports and 2 sata3 ports. (http://www.ldlc.be/fiche/PB00121886.html).
The USB ports are working correctly but the HDD plugged in ...
1
vote
1answer
119 views
What are the possible ways a Debian Linux system may write data to HDD and how to avoid them?
The background:
Here I have a spare x86 board which has a low energe costing AMD CPU built on it. I am planning to DIY a home use file server with it running a Debian base system and some common ...
7
votes
2answers
592 views
Why can an unpriviliged user execute the `sync` command?
Currently on Ubuntu Linux, but I noticed this on other OS's too. Apparently any user can execute the sync command, but why is this? I can only see the disadvantage: system slow down due to unnecessary ...
2
votes
3answers
185 views
How to make data-recovery very-very hard or impossible for Unix -computer before reselling?
I resell my Thinkpad and I want to make sure its old content in the harddrive is not readable. The Thinkpad has now Debian -installed but I sell it as-is so no OS needed. How can I can rewrite the ...
0
votes
2answers
162 views
SAS hardrive 600GB 10k is not detecting in my linux server
I have inserted one new 600 GB HDD to my Linux server. Green light is glowing but in my Oracle Enterprise Linux 5.5 OS it is not showing after executing the command below:
fdisk -l
grep -H . ...
2
votes
0answers
252 views
Bad superblock after server crash
My server (CentOS 6) crashed, and it now kernel panics on boot. It's currently using a mdadm RAID1 array with two 1TB drives.
vg_server2422-LogVol01 is /
vg_server2422-LogVol00 is Swap
...
2
votes
1answer
252 views
How to skip/exclude one SCSI bus from scanning during boot?
A "Linux debian 3.2.0-0.bpo.3-amd64 #1 SMP Thu Aug 23 07:41:30 UTC 2012 x86_64 GNU/Linux" system has at least 5 SCSI hosts:
root@debian:~# ls /sys/class/scsi_host
host0 host1 host2 host3 host4
...
1
vote
0answers
84 views
Negative hdd usage. Available is larger than fullsize
Having issues with space accounting of lvm volume. 23G is available. But the full size of the partition is 20G. (So, it shows "-4.1G used" 0_O)
> df -h
Filesystem Size Used Avail Use% ...
1
vote
2answers
261 views
How to resize logical volume to fit filesystem
How can I resize logical volume to fit filesystem automagically?
1
vote
2answers
175 views
Writing data on particular sectors or blocks
Not sure if it's better suited for superuser of serverfault boards, let me know.
I have a drive which I repartitioned with fdisk. Initially there was only one big partition, now there are a number ...
2
votes
1answer
556 views
VBoxManage: Error: Can't be used as the requested device
I used the soluton from this thread but always i get
VirtualBox error: The medium 'lvol.vmdk' can't be used as the requested device type (0x80004005)
I've tried all controllers SATA, SCSI, IDE and ...
0
votes
2answers
190 views
Any temporary fix for / being remounted as read-only?
My disk has a few bad sectors and has already failed the SMART tests. It obviously is going down.
It gets remounted to read only and I have to fsck and reboot all over again. Is it safe for me to ...
2
votes
2answers
179 views
LVM with SSD and SATA hard disks
Is it possible to create LVM partitions for both SSD and SATA hard disks? I mean if there isn't any conflicts.
2
votes
1answer
515 views
How to fix hard-disk error connected by usb?
My system is Linux 64bit, my hard-disk is a 1TB WD HD, connected to my computer by USB3.0. I found some files cannot be copied, they are video files, and it seems I can play the video. I ran e2fsck ...
1
vote
1answer
82 views
Does symlinking from Drive A to Drive B affect I/O on Drive A?
I was wondering if IO through a symbolic link affects IO on the host drive even if it points to a seperate drive?
My setup is,
/dev/sdb2 1.8T 443G 1.3T 26% /home1
/dev/sda3 1.8T 1.7T ...
