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4
votes
2answers
213 views

How to trace/monitor the I/O of a Linux command

I ran find / -name abc.html and a short time after I ran this command again. This time it was very fast, so I know the find must be caching the result somewhere. How can I find out where the cache is ...
0
votes
0answers
17 views

Complete I/O error HDD after doing dd

Ok, before reading this, I just want to say that this is not a duplicate post. I once owned a Seagate Momentus Thin 500GB that contains Windows 8. After messing up a bit, it restarted and what I saw ...
0
votes
0answers
21 views

Very inconsistant mouse wheel scrolling

Every time I start my Ubuntu the mouse wheel scroll seems to be set to a random amount. Normally it should scroll three line per click but each new boot it seems to set a random amount of scroll. I ...
1
vote
0answers
11 views

Cgroups I/O read restriction

I am trying to restrict group to read operation to 100 per second. Here is my cgroups configuration: # Configuration file generated by cgsnapshot mount { blkio = /cgroup/blkio; } group ...
5
votes
4answers
202 views

Writing to a specific memory location

I am trying to edit a file inside /proc/devices-tree to be exact, and i am unable to do so, I am getting: "permission denied" or "Input/Output error". I have tried all possible combinations of ...
0
votes
1answer
38 views

Main data drive giving I/O errors

My main data drive is throwing up all sorts of weird I/O Errors: (tail of dmesg output) [ 7081.267852] sd 4:0:0:0: [sdb] Unhandled error code [ 7081.267856] sd 4:0:0:0: [sdb] Result: ...
0
votes
4answers
85 views

Small SSD, large SATA. What can I move to SATA?

I've got a 601GB Linux partition which can be written to at up to 84.7MB/s (ref). My 62GB can be written to at 366MB/s (ref). Down to my last ~360MB. What should I move over and mount from my other ...
1
vote
1answer
88 views

Segfaults and “Read-only filesystem” after a dist-upgrade

After running an apt-get dist-upgrade on my 14.04 home server, it seems like something may have gone wrong which has left the box unusable. It all started with this: Preparing to unpack ...
0
votes
0answers
14 views

How to persist the output of espeak command line [duplicate]

Trying to persist the voice generated by espeak command line , we do the following espeak "Peace upon to you" > greeting.mp3 Unfortunately , we've got an empty MP3 file (0 bytes) How to ...
0
votes
0answers
85 views

File splicing – Input Output error

File splicing – Input Output error I need to copy about 1TB of data from an internal SATA disk to another external SATA disk. The copying consistently stops after some 300 to 400 GB, with the error ...
1
vote
1answer
140 views

Why does my Ubuntu 14.04 desktop lock up when I do large data transfers between hard drives?

I am running Ubuntu 14.04 on a system that I built from parts. All software is up to date according to update manager. Kernel is 3.13.0-39-generic GCC version 4.8 (i686-linux-gnu) Xorg version ...
0
votes
1answer
106 views

Crash, followed by I/0 error

I'm looking for help diagnosing an issue I'm having with Ubuntu 14.04 64bit. I'm a relative newbie to all this, so I'm not really sure where to start. Basically what happens is this: computer ...
0
votes
0answers
131 views

EXT4 - jbd2/dm-1-8 - lazy initialization

I am running an operation that requires a lot of disk IO. It was going extremely quickly on my 500GB SSD until jbd2/dm-1-8 appeared in my iotop and is now permanently at 95-99%. From reading online, ...
0
votes
0answers
65 views

Disk monitor software

Can't find something similar to windows resource monitor software (input output monitor). I need tool which draws disk load graphic and processes which uses disk input or output. There are a lot of ...
0
votes
1answer
87 views

How To write to Sub-D I/O using bash

I want to control(write and read) the sub-d parallel Pins (usually used for interfacing a printer) using bash-scripts. I know, that I could use pySerial or c, but I don't like them;). I want to use ...
5
votes
1answer
1k views

sh: echo: I/O error on pm-suspend Ubuntu 14.04

I just installed Ubuntu 14.04 on my Fujitsu Lifebook U772 after a long hiatus with Opensuse and after the install, it appears that pm-suspend works out of the box. A few days of setting up later, ...
0
votes
0answers
153 views

Ubuntu Server 12.04 Stopped Reading USB Sticks with I/O errors

I have an essential installation of ubuntu 12.04 server that, after some days of working perfectly, stopped reading correctly any USB sticks (with regular FAT32 FS). Dmesg reports I/O errors on sdb ...
2
votes
1answer
500 views

14.04 System hangs and IO errors

To my surprise, after todays fresh Ubuntu 14.04 install (fully updated as of today) I'm getting various problems like random hangs and I/O errors when copying/moving files (moving backup from HDD to ...
1
vote
0answers
68 views

Something is using my external drive. How do I find out what?

Whenever I attach my external LUKS drive to my laptop, the drive head starts rattling like crazy, as if I am copying the entire thing. Every now and then it pauses. I've seen some tools like iostat ...
1
vote
0answers
324 views

iotop shows 99.8% IO load on “--render” and “--extension” and “dropbox \fataldb” processes

folks. System works more or less fine, but stucks from time to time. I've tried to detect using iotop it and it seems that disk io is the bottleneck. chrome and jbd2 keep writing to disk all the ...
6
votes
3answers
4k views

How can System Monitor display disk io?

I can't imagine this is not possible.... but I can't figure out where to enable it. can't system monitor (gnome-system-monitor) display disk io?
1
vote
1answer
183 views

Too much disk read/write when launching an application

I have Xubuntu 13.04 on an old Dell Inspiron with 1 GB RAM and about 2 GB swap. Each time I launch an application (e.g. Thunar or Evince) it takes a pretty long time to be launched and I see a lot ...
5
votes
1answer
2k views

jbd2 constantly writing to disk [closed]

I know there are related issues, but none of them seem to apply to my case. Below is iotop output. jbd2 is constantly above 90% usage. It's been grinding away for 2 days. It stops for a while after a ...
0
votes
2answers
1k views

I/O error while reading a certain VCDs that plays well in windows in the same system

This is an annoying problem in Ubuntu 12.04/12.10/13.04 that I can't play a certain VCDs. This is not a missing codec or encrypted content issue - It raises an I/O error. Well, I suspected the VCD ...
1
vote
1answer
160 views

How can I find what process is trying to write to a CD that's offline?

I've got a Virtual CD which can mount remote media via IPMI. After doing an install of Ubuntu 12.10 I'm getting this error every 2 sec in the syslog and on the console: [628.890722] sr 6:0:0:0: ...
4
votes
1answer
370 views

Show files being accessed most in a short time period

So I've got a server that's struggling under the weight of several Wordpress installs. Things are relatively well cached (I am planning to improve things anyway) but I can quickly see that disk IO is ...
2
votes
3answers
562 views

Format partition to what block size for photos only

I have a lot of photos and am working on them extensively, mainly going quickly through them back and forth via a Photo Browser and also doing some work via scripts. Would that make sense to format ...
2
votes
1answer
259 views

How to prevent system blocking due to some I/O activities?

Sometimes my system (Ubuntu 10.04 .. 12.04) becomes almost unresponsive due to some I/O activities. For example, this happens when some RAM content is being moved to swap on resume from suspend mode. ...
2
votes
1answer
117 views

is there a way to create graphs for IO on server

is there a tool which allows to save a simple data to a file regarding the IO usage, so that I could use them to display a graph of IO usage? I need to use it on my server, with no graphical ...
0
votes
3answers
552 views

Disk operations consuming all memory - Ubuntu 12.10 i386

I'm having a strange problem with a new clean install of Ubuntu 12.10, any disk operations I do, like restoring a backup eats all my 8gb of ram, and it doesn't seen to release the memory, so I'm using ...
9
votes
5answers
2k views

What is causing Unity to be slow on startup?

A few days ago I noticed that after I login in, the top panel and the dash took a bit more time to load and I noticed more disc activity than usual. I thought that it might have been caused by some ...