I have an HP proliant server where i have internal hard disks and also HP MSA external storage.
The IO rate is very very slow on internal hard disks and also on MSA storage.
Se bellow output.
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How can i increase the IO rate. I have another HP Proliant server and there i can see 98 MB/s speed of IO which is quite good.
Install rhel4 on SATA disk through VMWare6. I tried but The installation is not detecting the hard disk.
View 3 Replies View RelatedWhenever I transfer a movie into my 16GB USB flash disk, my whole system becomes windows-like and unusable!
When i drag the file(s) into the USB disk folder, it starts out fine and pretty darn fast (25mb/sec) then slowly decreases until it's unbearably slow (3m/sec) and as a side effect my whole system starts deteriorating. I basically have to wait for the file to finish transferring before i can use my desktop again!
This has been happening with every version since Karmic (all 64bit)- I put up with it because I don't use the USB stick that much.. but lately it's been my go to source for transfering large files to/from work.
i have amd athlon x2 3gb RAM ddr2 two hdd one 80gb other 1tb in this computer i got only ubuntu all disk in EXT4.i want to copy 10gb many file of 700mb or 1gb ( many linux ISO )the transfer is 1mb/s this is SOOO SLOW.i did a touch /forcefsck just in case but nothing happen it is still slow!!what might be the problem ??
View 1 Replies View RelatedMy disk is very slow after I installed ubuntu 10.04 over my old 9.04. Doing some tinkering helped a little code...
But it is still far too slow. On the other version, I had a custom partition setup, with the home partition with 100GB, and ext3 (and other partitions for swap, boot, root folder and space for a windows partition I never cared to install ).
This time I am using a standard Lynx setup (2 partitions, the swap and the main one with almost 250Gb, using ext4).
Some applications I develop, that use disk for some unit tests, are now very slow to work with. Is there a way to making it faster? Going back to 9.04? Waiting for 10,10? Gparting and making partitions smaller on ext3? I don't know if any of these will work.
This is a curiosity of mine, and I expect a technical answer, if someone knows it. Why the systems become so irresponsive when doing hard-disk input and output? This happens even if writing is done to a secondary disk where neither the system or the swap are stored.
View 7 Replies View RelatedMy hard disk speed is really slow. the actual reading from 'fio' is as shown in the attached image.
My system is detailed below:
I am running Ubuntu 9.10 x64 on a relatively old laptop and I find Grub is taking about 20 seconds to initially load before booting the system. The laptop only has a single 120GB hard drive, and I chose the "use entire disk" option when installing, so I do not have any fancy partitioning scheme.When the system boots I get the "LOADING GRUB" text displayed and then shortly after it just shows the flashing cursor with no text, and stays there for about 20 seconds. After that it finally starts loading the system.All the searching I have done only turned up solutions relevant to people with multiple hard drives. This was not an issue on Grub 1.
View 1 Replies View RelatedI have a big problem my hard drive is works fast all the time and now i hear clicks and scratching and weird stuff from so how can i make it slow down. i cant buy a new one if it breaks down ...
View 6 Replies View RelatedI'm running Ubuntu 10.04 as a full install from a USB flash drive. In other words, I've installed to the flash stick just as though it were a normal hard drive. This is not a Live USB/Persistent install.
The drive is an off-the shelf 8GB Gigaware stick, and its read/write performance is pretty slow. Any time I do anything that requires disk access, it's very sluggish and tends to hang.
I'm looking for advice on things I could do to minimize the amount of disk-access made in the course of using the system, so that it will feel snappier and more responsive.
Some things I've done already:Installed 'preload', which is a daemon that monitors what programs you use frequently, and pre-loads them into RAM to reduce startup time. Mounted /tmp as a tmpfs (RAM disk) and moved my Firefox and Chrome browser caches into RAM. Set noatime for my root and home partitions.
Should I be trying to disable the filesystem journal as well? I'm less concerned with potentially burning out the flash drive with too many writes than I am with just making the system more responsive and nicer to use.
One other thing I was reading about is the so-called "Laptop Mode" that appears to be kernel settings to allow you to spin down a laptop hard drive: [url]
Obviously a flash drive doesn't spin, but it seems like some of those same techniques could be helpful here. Is there anyone who has experience running Linux in a situation with a very slow hard drive?
The computers I'm using this flash drive with all have between 2 and 8 GB of RAM, so moving more stuff into RAM is unlikely to be an issue.
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:
The related output from my lspci:
The related output from my lshw:
Quote:
Originally Posted by mcnalu
Nepomuk/strigi slowed my machine to a crawl and used 1Gb of disk space so I turned it off. In my machine is the same thing. Turning it off is a right and wise solution?
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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I'm using Fedora 12 since 2 years lately, I really enjoy this S.O., it's quite robust and wonderful, but a couple of months ago it is really slow to boot up when startup the computer, I've checked everything, but seems to be ok, I had a partition lost arround that date, but recover successfully, it happens when I run gparted that It cannot see partition on my 500 GB disk, but still boots up. When running Mandriva live cd, it can see (?) all partitions on that disk, even with Fedora Dolphin I can access this partitions. What could it be?
View 6 Replies View RelatedSame computer and flash. Two results on different OS:
Write speed under debian: 0.4 MB/s
Write speed under Windows: 6.6 MB/s
From what i've been reading on the net I guess it's something to do with the mount - sync option.
I've notice that there are couple of workarounds but all of them are pretty tedious.
Is there any simple (GUI - one/two clicks) tool that allow to mount/unmount flash disk easily using the correct options?
I'm using Squeeze 6.0.2 (Kernel 2.6.32-5-amd64), gnome 2.30.2
Same computer and flash. Two results on different OS:
Write speed under debian: 0.4 MB/s
Write speed under Windows: 6.6 MB/s
From what i've been reading on the net I guess it's something to do with the mount - sync option. I've notice that there are couple of workarounds but all of them are pretty tedious.
Is there any simple (GUI - one/two clicks) tool that allow to mount/unmount flash disk easily using the correct options?
I'm using Squeeze 6.0.2 (Kernel 2.6.32-5-amd64), gnome 2.30.2
I have installed Kubuntu Lucid on my Samsung NB30 netbook. Got everything working, but the disk access seems extremely slow and noisy. Whenever larger files are being processed (software installation), the disk makes a kind of rattling sound - looks like the head is moving back and forth between two or more locations. The disk seems o.k. so far - no io errors under Linux and Windows XP boots without problems.
View 9 Replies View RelatedWhenever I am busy reading or writing large files, or large sum of files, my computer is unresponsive. Screens are getting greyed-out and I just can sit there and wait until the reading/writing is done.
This is not caused by the CPU which is overstressed because it is not. Look at the attachments and you will see the CPU is used for about 20%. When these pictures were captured the computer was using hellanzb to unrar a long list of rar-files.
When you look at my signature you see the computer is not bad at all, just disk-access is slow. I can transfer files with a maximum speed of 30MB/s. Is that normal or is it very slow? I don't know the numbers. I have 2 SATA disks.
O.S. is Mint 9-Isadora, based on Ubuntu 10.04 and I use the 64-bits version.
I am having a problem with my CentOS based server where the hard drive speeds are incredibly slow for both of the hard drives installed -
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Timing cached reads: 16512 MB in 2.00 seconds = 8272.92 MB/sec
Timing buffered disk reads: 12 MB in 3.01 seconds = 3.98 MB/sec
I have looked around but do not understand the complexities of rebuilding kernel etc so would need some assistance. I have checked IO_support and it is set to 0
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Here are the results for hardware installed after a quick lspci -v
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If there are any noticeable incompatibilities here and how I could work to speed this up. I only have SSH access and could possibly get a KVM on it as it is currently locked up in a DataCenter.
My 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.
My laptop boot up time increased considerably (10 seconds) after allocating a virtual drive for virtualbox guest. The guest installation did not work so i removed it along with the virtual disk. Now everytime when i boot to ubuntu, after inputting my password in the login screen, it takes much longer to load the system. And during the loading time the disk activity indicator light blinks indicating the harddisk is actually busy loading the system.
I decided to search around for a possible answer and force reprofiling ureadahead does the trick Now boot time is back to what it used to be
I have a small SDD system disk and a large data disk on a server based on fedora core. It is organized this way so that the data disk can be spun down most of the time, reducing noise and heat.I'd like some way to periodically create a bootable backup of the system disk on the data disk, so that if the SDD goes belly-up, I lose minimal data and can very quickly bring the system up.Some thoughts:1. I know I can create a partition on the large disk and make the system boot from a raid0 mirror.However, the constant writes to the system disk (e.g. by the journal daemon) will ensure it never spins down.2. I can do a periodic format and cp -ax to the "copy of system" partition, but that doesn't leave the disk bootable because it needs changes to the /etc/fstab, and possibly a mkinitrd to become bootable.3. Or something like boot from a TFS (translucent filesystem) where base layer would be the raid, and the writable layer would be on the SDD, with periodic pushes of the writable part to the base layer (I'm not sure this is even possible).
4. In a virtual world this could be managed by appropriate location and use of snapshot images, but I'm not in a virtual world - as far as I know :0).Ideally I'd like something like raid that only brought the copy of system disk into sync with the running system infrequently (perhaps every few hours). Can anybody suggest how to do this?
I'm a newbie in this forum and a newbie with administering Linux. I need to install gcc 3.4.6-10 and I've downloaded and installed the rpm, but it seems that it did not do anything.
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[root@server ~]# rpm -ivh gcc-3.4.6-10.src.rpm
1:gcc [100%]
[root@server ~]# rpm -q gcc
package gcc is not installed What else should I do?
i try to install web cam in redhat by useing wine, but it showing no. web cam connected even if i connnect
View 1 Replies View RelatedHow to use lex and yacc tools in red hat enterprise version 4?
reply soon..
do i have to install anything??
Under RHEL4, I've mounted a drive (/dev/sdb1) under /home and it mounts with no problem a boot time since I have an entry in /etc/fstab. Using the same parameters under RHEL5, /home is a 'read only' directory. I've tried to add a 'rw' option to /etc/fstab, but /home remains a 'read only' file system.
View 1 Replies View RelatedIve created a bootable RHEL4 USB flashdrive so that I can do my installs from rather than using CDDVD's. The USB key boots fine to the point where it asks me to select a drive that contains the ISO images, but it doesn't show me the USB drive to select, only my 2 hard drives sda1 and sdb.
We currently use HP xw9400's with the following spec as shown in dmidecode:
BIOS Information
System Information
I know that the xw9400's have the nvidia mcp55 pro chip on the motherboard that handles USB, keyboard, mouse and other peripheral traffic, so am wondering if this could be what the problem is? Like there may some code that i need to tell the machine to use this or something?
just one month before i upgraded my pc to Later configuration but then i can't install rhel4 on my pc. i have heard there is a few upgrades (Updates) will help this issue, is that true? then which update i need to use for install rhel4 successfully on my pc? or is there any third part utilities for solve this issue? here i am adding my pc's spec
AMD Athlon 2.6
Asus M2N68-AM
2 GB DDR II
Nvidia 8400Graphics
Samsung HDD
I've got an older RHEL4 system (2.6.9-34.ELsmp) which I am needing to migrate off of one LUN and onto another. My plan was to simply have the storage team assign me a new LUN and to setup LVM mirroring then remove the origional LUN. My problem is with the new LUN. I had to reboot to get the system to even see it. It now shows up in /proc/scsi/scsi but there is only one new device in /dev and I cannot even open the sd* device.. I can only open the dm-* device.
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My X windows wasn't deployed in the installation at the beginning , but i need to install it now , my system is RHEL4 , i am not connected to the internet , so i will not be able to use up2date , so I need to use rpm instead.
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