I have formatted to EX3 in gparted all went fine, however I cannot rename the disk or write anything to it as access is locked to root Furthermore a file has been created called "lost and found" its locked and 46GB in size - what is this?
View 14 RepliesI got a new machine with GA-p55A-ud3 mobo and a WDC WD10EARS 1T disk.
When I tried to benchmark the disk IO, I was suprised by the low write speed:
The related output from my lspci:
The related output from my lshw:
I got a new machine with GA-p55A-ud3 mobo and a WDC WD10EARS 1T disk. When I tried to benchmark the disk IO, I was suprised by the low write speed:
[Children see throughput for 1 initial writers = 35962.63 KB/sec
Parent sees throughput for 1 initial writers = 35962.63 KB/sec
Min throughput per process = 35962.63 KB/sec
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how to rename disk array
# df -kh
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
444G 4.4G 417G 2% /
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I have a 21GB mounted partition /media/mydata. On my desktop it's labelled as "21 GB Filesystem". When I open it with Nautilus it's called "mydata". Is there a way of changing that label to "mydata" on the desktop?
View 2 Replies View RelatedIts very easy to rename a flash disk or even a memory card or any storage in windows because all you have to do is right click on the disk and an option is there rename, I have failed to find a way of doing this in linux ubuntu 8.04, but I understand its possible even in the command line, how to do this, I need to rename my flash disk.
View 1 Replies View RelatedI have a netbook I'm not using and which I transformed into a server with Apache, Tomcat6, Netatalk, Webmin, BIND9 and Tor.
Problem is, the disks never stop spinning because all of the programs write a few kb at least every few seconds to disk, even when nobody is connected to it.
My question is: Is there a way to have the computer boot from disk like normal (maybe even a squashfs), keep ALL CHANGES to ram and then save to disk when either the ram is full (unlikely because the server is rebooted every few days) or at shutdown?
I thought about a mixture of ramfs and unionfs but I'm not good enough yet...
df -h [URL] I did the following command to find everything is in /usr or /var, then tracked it down to /usr/lib and /usr/share as the main offenders, but out of all the directories none are more than 1mb or so.
du -sh /* | sort -gr | head -n 5
I tried to uninstall firefox, which is what got me in this mess in the first place, the log claims it will remove ~240 mb but failes on a "E: Write error - write (28 No space left on device)" [URL] If I could juggle something onto an external hard drive so I can uninstall firefox I would be out of the wood. Failing that I believe a new install is in order.
I am using kernel 2.6.32.21, and my hard disk is West digital WD10EARS-00Y, 1TB. This disk is just for data, I made 2 partitions on it, each has half. And I have another small disk for system. I am using ext3.
this is my fdisk /dev/sdc
Device Boot Start End Blocks Id System
/dev/sdc1 1 60800 488375968 83 Linux
/dev/sdc2 60801 121601 488384032+ 83 Linux
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I ran some dd to test the write throughput on /dev/sdc2. If I run it in /data2, I got around 70MB/s. If I create some directory, say /data2/dir/, and run dd again, I might get 60MB/s. Sometimes I still get 70MB/s, sometimes I get 60MB/s, differs for directories.
I wonder if this is because the allocation policy of file system, ext3, or this is from my hard drive?
I have Ubuntu 10.04 installed on my Armada laptop with a Teac CD-W24E internal and a Plextor-DVDR PX504A via USB. I use K3B for writing CD data projects to 700mb CD-RW 1-4x discs. K3B writes ok on both drives if the inserted disk is a blank disk. If I insert an appendable disk with lots of space left, it asks to blank it before writing. I find no way to write on an appendable disk with K3B. Is this a software limitation or am I missing something?
View 9 Replies View RelatedWell appears to be that i have two partitions..one of 300gb i did on windows time ago and one of 100gb where i place my DEBIAN LENNY 5.0, the problem is that i cannot write into it..only i can copy stuff from it.
View 13 Replies View RelatedHow would I rename all files with a leading decimal point recursivley? I some how got all my music files to have a decimal point.I tried the below and got a " sed argument to long".[CODE]find /media/MUSIC -type f -name "*.wma" | xargs -0 sed -i 's/.(.*)/1/'[CODE]
Another question, can i just use -type f with out -name ? I am sure that all the files got the decimal point added as the first character.
I am trying to scrape all of the info off of an old Fedora disk so that I can referb the box and put new stuff on it, but for some reason I can't get the permissions (even as root) to write to the disk.
It is currently mounted under /media/backup and I can browse it all I want, but still can't write.
Upgraded from 8.04 LTS to 10.04 LTS, but can't get the sound working.Have downloaded the 10.04 Ubuntu CD image to installwhen I try to follow the directions at[URL]BurningIsoHowto for burning the image............it says to Right click on the ISO image file and choose Write to Disc. I have no WRITE TO DISC option when I right click.Will some kind soul please tell me how to burn the downloaded CD image to a CD?
View 6 Replies View RelatedI am doing a program that reads data from a gps and some other devices and writes some files with all the information. When I run it normally it works fine, but if I run the program in the background (with the ampersand) files are not created until I bring it to foreground or close it. I am confused, the program should run the same way with and without the ampersand. (Could it be that the main process that creates all the threads does not create them when it is executed in background? It seems like if the program is stopped until I take it to the foreground).
View 4 Replies View RelatedI'm only somewhat new to linux but I still don't have a real grasp of it's deep innards and I had a fairly outlandish idea that I'm wondering whether is possible/plausible or not.I want to run a game server on CentOS that has a very high dependency on fast writes-to-disk. Disk writes are pretty much the single bottleneck in this server.First I looked at allowing a high queue of writes to pile up before it flushes them to the disk, but I read that this causes fsync, which is still used commonly, to take a very long time.
I've been thinking about the possibility of running the server on a RAM disk, but I still want changes to be saved to non-volatile storage. Not all at once, but have it actively write the changes to disk. The hope is that this would smooth out the peaks and valleys of write activity and improve overall performance, but I have not seen this idea discussed anywhere.
So my question is, is there any plausible way to continuously copy writes to a RAM disk to a physical drive without slowing down the speed of the writes to the RAM drive below the speed of said RAM? Or is there a better way to obtain this sort of performance, short of investing in expensive equipment?
I have encountered this problem of memory usage is increasing as the during the my program is being run until 1Mb is left then it stays at that.A part of the program is this:
Code:
#define WRITE_BUF_SIZE (1024*1024)
void post_data(const void *data, unsigned long size)
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In fact I'm not the systems administrator, but I have a strange problem unzipping a file. I think is a problem of memory or swap space or somethin similar, but I'm going explain the problem in detail: Distribution: Red Hat Enterprise Linux ES release 4 (Nahant Update 3) I'm connected as root. I have this zipped file: -rw-r--r-- 1 root root 678183271 abr 7 15:30 Master032010.zip it contains a 2,4G file
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I've tried "rename" off the right context menu in XFE (ver. 1.32.1)
I've tried Krename.
I've tried quoting;
$ mv ' Outlander - 2009.avi' 'Outlander - 2009.avi'
mv: cannot stat ` Outlander - 2009.avi': No such file or directory
I've tried escaping;
$ mv Outlander - 2009.avi Outlander - 2009.avi
mv: cannot stat ` Outlander - 2009.avi': No such file or directory
I've tried forgetting about it & hoping it will go away...
GNU bash, version 4.1.0
Debian Squeeze with 2.6.32-trunk-686
As a testcase on how encryption works out of the box with OS11.4 I've formatted an external drive with encryption. All goes well and upon boot the passphrase is requested. However I cannot write files to the disk as a user and I can't find the correct mount command in order to get it mounted so that my users can write to it and not only the root.
View 3 Replies View RelatedI have what seems to be a hard disk Write speed problems with my first hard drive. Timing the cp command of a 700 Meg file takes about 8 secs from disk 2 to 3 but takes 25 minutes from disk 2 to disk 1.
Here are the details:
Kubuntu 9.04 (Kernel 2.6.28-15-generic)
Hard Disk 1 : /dev/sda (WDC WD2500KS-00MJB0)
Partitioned
/dev/sda1 ext3 / 10 Gigs
/dev/sda2 extended 222 Gigs
/dev/sda5 linux-swap 2 Gigs
/dev/sda6 ext /home 220 Gigs
Hard Disk 2 : /dev/sdb (WDC WD2500AAKS-00F0A0)
Partitioned :
/dev/sdb1 ntfs 16 gigs
/dev/sdb2 xfs /home/eric/data_drive 216 Gigs
Hard Disk 2 : /dev/sdc (ST3500320AS)
Partitioned:
/dev/sdc1 xfs /home/eric/data_drive2 465 Gigs
By doing 'time cp ...sdb1/test.avi ...sdc1' takes about 8 seconds and same vice-versa. the command 'time cp ...sdb1/test.avi ...sdb1/test1.avi takes about 11 seconds and the same holds true if sdc1 is used But copy sdb1 or sdc1/test.avi to either sda1 or sda6 and it takes 25 minutes. Same problem if I copy from the same drive partition (sda). I have booted a livecd Knoppix 6.2 and the same problems happens.. So safe to say it's not Kubuntu. The only thing that is left to do is backup and reformat the partitions as XFS and try again. I also did a full smartcontrol Extended test and no errors. Checked all the various logs and nothing found.
I am experiencing disk write performance issues and I cannot find the cause. I have LSI-9211-8i SAS 2 controller (latest firmware), Centos 5.5 latest x86_64 kernel (2.6.18-194.17.4.el5 #1 SMP with latest LSI driver v. 7.00 datet Jul 27) and Seagate Cheetah ST3600057SS drives. These drives have a std write performance (sustained) of > 200MB/s (and read as well); with Fedora core 13 (same machine), issuing a dd if=/dev/zero of=/dev/sdo bs=1024k count=16384 (16 GB direct device write), gets normally to 213 MB/s (repeated retries). On Centos 5.5 I am getting speeds around 110/113 MB/s.
iostat does not show anything specific (just 1.3 % wait, CPU 99.7 idle).
There are 14 drives: tried with several of them, same figures. Reads go around 200 MB/s.
How is the best way to rename an existing user and his home directory under Debian Lenny? BTW I'd like to have the same settings like Desktop Icons, Bookmarks etc.
View 5 Replies View RelatedI have a program that is very heavily hitting the file system, reading and writing randomly to a set of working files. The files total several gigabytes in size, but I can spare the RAM to keep them all mostly in memory. The machines this program runs on are typically Ubuntu Linux boxes.
Is there a way to configure the file system to have a very very large cache, and even to cache writes so they hit the disk later? I understand the issues with power loss or such, and am prepared to accept that. Crashing aside, in normal operation the writes should eventually reach the disk!Or is there a way to create a RAM disk that writes-through to real disk?
I just bought a USB hard disk and when I plug it in it gets mounted as owner root and group root. I tried writing a udev rule for it based on the following guide:Nothing seems to work, it always mounts as root. Slackware 13.1, KDE, Dell Optiplex GX280, Western Digital Passport USB 320 gig drive.I am a member of the plugdev group, so it seems to me a rule should not even be necessary.
View 14 Replies View RelatedI was wondering if there is some way to determine when a file finishes writing to a directory on both Windows and Linux (obviously, they will probably be two different commands). This is mostly so that, instead of constantly polling a directory for new non-temp files, I can set up a program to simply listen for the completion of a write-to-disk (it seems better to do things that way).
View 3 Replies View RelatedMy CD burner seems to be writing to the disks, it gives me a progress bar, you can hear the disk rapidly spin then slow to about half speed, just like it does in Windows when it works. But it doesn't work in Ubuntu 10.10 32 bit?
This is a CD reader/ writer, but it only reads DVDs, not writes.
I've surprisely recognized that it's possible to write a filesystem on a hard disk without any valid partition. Well, the general advantages of partitions are clearly. But what are possible disadvantages or limitaions if you don't use a partition (e.g. if you want to use the complete space as one volume for data mining or so)?
View 14 Replies View RelatedMy problem is extremely slow write on hard disk and 100% cpu usage and it happens when I want to write something on the hard derive not any other external derive.
Tried a fresh ubuntu install. No change. I am not even sure if it is a software or hardware problem.
I run the following command for disk duplicating from one source to 5 destination harddisk.
dc3dd progress=on conv=sync,noerror iflag=direct bs=262144 hash=md5 log=sda_log.txt if=/dev/sda | tee >(dc3dd of=/dev/sdb) >(dc3dd of=/dev/sdc) >(dc3dd of=/dev/sdd) >(dc3dd of=/dev/sde) | dc3dd of=/dev/sdf
When I run the command in shell prompt it is working fine. But I want to write a shell script for this task. When I wrote and run the shell script it gives the error message syntax error near unexpected token.