0
votes
0answers
16 views

Internal secondary hard disk suddenly failing to mount

In RHEL5, my internal secondary hard disk (1TB) suddenly fails to mount after some unexpected power failure and after my system got off. But it's showing in BIOS and while Booting checking as sdb ...
4
votes
0answers
40 views

Why does hdparm see two different values for the size of a drive?

I have a 1 TB drive attached via USB. It contains an LVM physical volume filling the entire device (without any partition table). When I tried to extend a logical volume by using the entire PV, the ...
1
vote
1answer
61 views

Problem with former RAID hard drive settings in Linux Mint 17

I'm new to Linux, just installed Linux Mint for the first time. I have two hard drives which were previously in a RAID configuration. Now before I have installed Linux I've changed them to individual ...
4
votes
2answers
62 views

Force a drive to spin up

What is the best way to spin up SATA HDDs in GNU/Linux? I've looked through the manual for hdparm, sdparm. I know there are arguments to spin DOWN the drive, with -y and -Y. I also know there are ...
3
votes
0answers
78 views

How to prevent the Linux kernel from waking a secondary HDD from sleep

Is there a way to instruct the (Linux) kernel not to wake up a secondary hdd after a system sleep/wake-up cycle? I'm asking because in my laptop I have an SSD as a primary drive containing the system ...
1
vote
1answer
59 views

How to find out Hard disk first & last sector ID's?

Is that possible to find Hard disk sector's ID? If we can, how to find out Hard disk 1st & last sector ID's in windows & LINUX? As I tried to Google it, I found only hard disk sector size. ...
5
votes
1answer
123 views

How to use an SSD for caching, so my hard disks can spin down?

I've got a file server with a bunch of disks running together in a BTRFS pool and want to add an SSD for caching. I'm not mainly after speeding up things, but want to catch the regular small accesses ...
3
votes
1answer
56 views

how to check health of hard drives?

How do I check the health of my hard drives? I know that you can do it with system rescue, but is there a way to do it from root without booting onto system rescue?
2
votes
2answers
134 views

lvm: what's the purpose of a Volume Group?

Each Volume Group can have many resizeable Logical Volumes. each of Logical Volume can have different filesystem, encryption options etc. that means having a single Volume Groups is enough. so why LVM ...
0
votes
2answers
28 views

Tool to create a bad physical location report on disk

I am in need of a tool that would run on an Ubuntu system that would be able to report the following: Bad physical locations on a disk (cylinders, sectors) Files that are affected by these bad ...
2
votes
1answer
149 views

Shutdown my (backup) hard disk on Linux when I don't use it

I have a hard disk in my computer that I use to make backups of my data. I do not use this disk otherwise. How can I stop this disk from spinning once my backup is finished? Also how would I make it ...
0
votes
2answers
112 views

How do I prepare Windows NTFS drives on Linux

I'm upgrading my windows desktop hardware and doing a clean OS install. I'm using SystemRescueCD to prepare my old drives for the upgrade. Long story short, a bit of an emergency, I coudln't do this ...
4
votes
2answers
678 views

Why is dd using direct slower writing to disk than to a file

I am trying to compare aggregate write rates when writing to a file in a GPFS file system, as compared to writing directly to a disk on a system with Red Hat Enterprise Linux Server release 6.4 ...
4
votes
4answers
406 views

How can I benchmark my HDD?

I've seen commands to benchmark one's HDD such as this using dd: $ time sh -c "dd if=/dev/zero of=ddfile bs=8k count=250000 && sync" Are there better methods to do so than this?
5
votes
2answers
159 views

How do I check if a particular hard disk is dynamic?

What commands do I have to check the dynamic or basic type disk/volumes of the Windows partitions? Topic of interest because: Warning: Don't install linux on a Windows Dynamic disk! Bug Report: ...
4
votes
1answer
163 views

lshw lists my drive but it has no /dev file

Ive just got a dedicated server which has 2x 1TB HDD. However when I type df -h I get the following: [root@sd-56537 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 916G ...
0
votes
1answer
125 views

raid1: how to synchronize harddisks (Debian 6)

My system is Linux/Debian 6, using GPT (GUID Partition Table). If I run the command cat /proc/mdstat I see the following situation: Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] ...
2
votes
1answer
780 views

Best options for mounting Mac OS X hard drive on my Linux box?

I have a new 3 terabyte external USB hard drive (Seagate ST3000DM001 in an enclosure). I hope to use it on both my iMac (OS X 10.6.8) and my Linux machines (Kubuntu). Right now this drive will ...
2
votes
1answer
170 views

Linux big disk partition issue

I have a big disk around 4.8 TB (RAID) and it has following partition (created by fdisk) [root@server1 ~]# fdisk -l /dev/sde WARNING: The size of this disk is 4.8 TB (4796404727808 bytes). DOS ...
2
votes
2answers
61 views

How to copy a very large video file with error in it?

I have a very large video file on a USB external HDD. It is about 13GB. I can play the video directly, and it seems there's no problem. But if I try to copy the file to other places, I got a strange ...
10
votes
7answers
442 views

Can I label a disk device rather than a partition?

I know about the e2label and friends program for attaching a label to a disk partition e.g. e2label /dev/sda1 bla What I want to do is something different: I want to create a label for a hard ...
4
votes
2answers
216 views

List all the ways a block device is in use

I want to be sure that a removable hard drive (USB, but this shouldn't matter) is safe to remove. Let's say this drive is sdb. Obviously I need to make sure that there is no mounted filesystem on ...
1
vote
1answer
232 views

input/output error that come back just fine. How to make sure it doesn't happen again? [duplicate]

root@host [/backup/2013-08-15/accounts]# cd /home1 root@host [/home1]# ls /bin/ls: reading directory .: Input/output error root@host [/home1]# Suddenly /home1 doesn't work. It used to work just ...
2
votes
2answers
2k views

How to check drive temperature on Linux?

I have used of hdparm -n and smartctl -A but it always seem to be a "per drive" technique as a drive may answer for only one of these tools. So, is there a standard way to get the drive temperature ...
2
votes
0answers
547 views

find ount what [flush-8:0] is writing

Using iotop, I found out that [flush-8:0] is doing a lot of hard disk activity, which explains the annoying slowdowns. However, I can't figure out what's the actual cause behind this flushing. No ...
4
votes
2answers
80 views

How to set up interchangeable VM guest/hosts

I'm looking for a way to set up a computer so that the disk is partitioned for multi-booting to two operating systems: Linux and Windows. Whichever one is booted, I want the other to be accessible as ...
3
votes
1answer
119 views

Why my SSDs are in /dev/hdx instead of /dev/sdx on CentOS 5.9?

I have two SSDs Kingston SH103S3240G plugged on SATA ports of my Intel Server Board S3000AH. The SSDs apear like a PATA device (hdx instead of sdx) on my CentOS 5.9. I'm having problems related to ...
2
votes
2answers
67 views

How to configure hard drive

I have a hard drive that is not configured, it shows this in fdisk -l: Disk /dev/dm-2: 107.4 GB, 107369988096 bytes 255 heads, 63 sectors/track, 13053 cylinders Units = cylinders of 16065 * 512 = ...
1
vote
2answers
234 views

How to boot Slackware from second hard disk when it was installed on first?

I first installed slackware with the drive in HDD1 slot, then once I got a caddy for HDD2, I reconnected the slackware drive to the HDD2 slot. (I have Windows on my HDD1). Is there a way to boot ...
7
votes
4answers
283 views

Protecting Devices from dd and fdisk Commands

I'm wondering if there is some way to prevent certain certain devices from becoming the output file of the dd command and the target of the fdisk command. I'm currently using the two operations to set ...
0
votes
1answer
493 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 ...
0
votes
1answer
1k 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
332 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 * ...
1
vote
3answers
96 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
390 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 ...
18
votes
3answers
9k 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 ...
1
vote
1answer
85 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 ...
0
votes
2answers
549 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
3answers
1k 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 ...
2
votes
0answers
278 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 ...
1
vote
1answer
169 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 ...
0
votes
2answers
281 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
1answer
950 views

How to fix hard-disk error connected by usb? [duplicate]

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 ...
2
votes
1answer
1k views

I/O error but no bad block is reported in syslog

I got errors like this in my syslog, but there's no bad block or sector defined in kernel report, I can't just replace the HDD right now and I prefer to reallocate the bad blocks for now, so I need ...
2
votes
2answers
938 views

Install Linux on two hard drives

I am new to Linux. I have a machine with two hard drives, the first one has 80GB and the second has 120GB. I am about to format this machine and install Linux. I want to install all the main ...
6
votes
1answer
493 views

HDD allocation fstab

In my PC running Ubuntu 12.04 LTS I have installed three SATA hard drives. Two of them are installed near a cooler. I want to physically switch two drives (one that is not near the fan should be moved ...
0
votes
0answers
37 views

Recreating EXT4 partition without losing data [duplicate]

Possible Duplicate: Can't mount EXT4 hard drive after mounting it in windows I have a 2TB Western External USB harddisk. I formatted it to EXT4. one time I plugged it to a windows ...
2
votes
1answer
375 views

Trapping “READ FPDMA QUEUED”

Recently I encountered a kernel message: ata3.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0 ata3.00: irq_stat 0x40000008 ata3.00: failed command: READ FPDMA QUEUED ata3.00: cmd ...
4
votes
1answer
376 views

Gentoo Live CD from Hard Drive: No Mountable Filesystems on root after modules loaded

I am attempting to install Gentoo on my PowerPC Mac. I have reached the point where I can boot the Live CD (I have no functional CD Drive, so it is from a spare Hard Drive), but after the kernel is ...
12
votes
5answers
8k views

How to find which process is regularly writing to disk?

How can I find which process is constantly writing to disk? I like my workstation to be close to silent and I just build a new system (P8B75-M + Core i5 3450s -- the 's' because it has a lower max ...