similar to: help with hdparm

Hi there: As suggested in the docs, I am forwarding a bug report. I have just converted two partitions to ext3 from ext2 without reformatting on my home box. All is not well, however. Here's the specs AMD K6/2-3D 500 Mhz, 64MB SDRAM, 100 Mhz bus Via Apollo P5MPV3 chipset, 100 Mhz bus Opti Mad 16 931 soundcard Video= AGP S3 Trio, w/8MB RAM, PS/2 mouse. Realtek 8029 pci bus network card.

Hi folks, I have an HP Proliant 140DL G2 server with what appears to be an IDE drive in non-DMA mode. Performance on the server is extremely bad when large amounts of disk activity is taking place. I think the problem is that my drive is not in DMA mode: # hdparm /dev/hda /dev/hda: multcount = 16 (on) IO_support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 0 (off)

Okay, I've been chasing performance for a while now. I have no idea if I should be trying to get better performance or if I'm getting all I can out of my hardware. Here is the information: /sbin/hdparm -I /dev/hdd /dev/hdd: ATA device, with non-removable media Model Number: ST328040A Serial Number: 7BY034XB Firmware Revision: 3.07 Standards:

I recently moved my CentOS 4.5 disk from a Lenovo ThinkCentre M52 (3.2 GHz Pentium 4) to a Lenovo ThinkCentre M55 (3.4 GHz Core 2 Duo). I had to install the SMP kernel, but other than that everything just worked. I did have an issue with accidentally initializing my /boot partition, but that was my own fault. But the system was not feeling right. Some things just seemed to be slower,

I also experienced this problem and the first thing that really helped out was changing the timing in the span line of the zaptel.conf. Change it to look like this (see below) and see if it helps out. I got the error much less after doing this and eventually got rid of the error completely by removing my raid drives, installing an IDE drive, enabling DMA mode on the Hard Drive, enabling APCI in

Hello all We are running an Asterisk server using 24 extensions with an AB1 channel bank and a T1 digium card, plus a TDM400 with 4 fxo modules (using only modules 2,3,4). We have been using the pbx with this configuration for some time (asterisk 1.0rc1,1.0rc2). A few weeks ago we have installed a mirrored disk (raid 1) in this server and we have been having some problems with sporadic

I've got a brand new .5U P4 system running several (I think) Seagate 80gig SATA drives. I tried to copy data from the first drive (sda) to the second drive (sdc) and was only getting about 1.7megs/sec. So I figured DMA was off. And this is what happened when I typed "hdparm -d1 /dev/hdc": /dev/hdc: setting using_dma to 1 (on) HDIO_SET_DMA failed: Operation not permitted

Hi there, First of all thanks for all the ext3 development! I run it on my laptop and it has saved me many times from lengthy fscks :-) However, I have observed that whenever something is doing a lot of writing to an ext3 filesystem other processes that involves I/O on the same disk are blocked for long times (often in the 10-30 secs range). For example, if I cp a 1.5 Gb file from one ext3

Hello Folks, We have 2 (identical hardware) busy public 2U rack servers, both have several hundred users & peak email (for example) deliveries at 300/5min during the daytime. Both servers run RAID1 over 2 EIDE disk drives. One server is fine - it never has problems - it is running RH7.3 and CPU loads are normal. The other server has constant disk activity & kjournald at CPU load of

When I copy a file(13Megs) from /home/ to /tmp/, sync takes almost 2 minutes. When I copy the same file to /usr/local/, sync returns almost right away. Both filesystems are ext3 and are on the same harddrive. When sync is running, the harddrive light stays on but I don't hear it doing anything. dmesg doesn't show any errors either. Below is the `time` output for each command. If you

Hi, Just thought I'd share some test results of mine in case anyone is interested. Basically the tests are siumulating what our product does with files - although the tests do it a lot quicker (not as many files though). The test is to create 1 million files (each containing the text of the file number) spread over a number of directories. The files are then removed in the same manner as

> > On Wed, Jun 3, 2009 at 8:52 AM, David McGuffey > <davidmcguffey at verizon.net> wrote: > > This is my first post here on the CentOS forums.? I've been running > Fedora > > since FC4, and have been working with RHEL 4 at work.? But this is > my first > > foray into CentOS. > > > > I followed the multimedia guidance on the wiki, and now

While investigating erratic performance on one our our servers, I'm getting some very odd performance stats coming from vmstat. What initially appeared to be happening is the machine goes into a hard loop in some mod_perl webserver code. Now there still may be an issue with the code, but my code examinations show no possible way this could be happening, but what I'm writing to you

I can find xorg-x11-drv-openchrome-0.2.901-1 for EL5, but not the current xorg-x11-drv-openchrome-0.2.903-1 (which only goes from FC8 on). Since my OQOs have the CX700M2 chip and there are listed enhancements for this chip in the 903 version, I would really like to get it...

I am running 2.4.18-3. I am getting terrible performance. I noticed in the boot.log that my / fs is ext3 and my kernel does not support ext3. I have tried to recompile the kernel with ext3 support. It did not seem to work. (e.g. lags for 40 or so when i am unzipping multiple files) Firstly, is this likely to be the case of my problems? How can i fix it? Do I just recompile the kernel or do I need

Keith Roberts wrote: > On Wed, 12 Jan 2011, compdoc wrote: > >> To: 'CentOS mailing list' <centos at centos.org> >> From: compdoc <compdoc at hotrodpc.com> >> Subject: Re: [CentOS] Kernel Errors Present >> >> Bad sectors get reallocated automatically, so you might >> not find any with testing. You need to see how many have >> been

At first our datacentre techies thought that lilo was forcing the old kernel. They altered lilo.conf & rebooted. It now seems that although the grub config file shows all 3 kernels & the newest is the default - when the system reboots - only the oldest kernel shows on the GRUB screen & only the oldest kernel boots! What can we do to get the newest kernel to boot instead? Regards,

Hi, I'm running into issues receiving faxes which, from what I have read, may be caused by frame slips. While I can find many posts saying to investigate it, I can't find any that describe *how* to debug the problem. Tried searching this list as well to no avail. Any pointers would be greatly appreciated. FYI, I'm running wbel, AMP 1.04, spandsp 2pre4. Faxing to a pstn on a

After booting into Linux 2.6.18-8.1.3.el5xen #> hdparm -tT /dev/sda /dev/sda: Timing cached reads: 10512 MB in 1.98 seconds = 5306.82 MB/sec Timing buffered disk reads: 210 MB in 3.02 seconds = 69.58 MB/sec Then I start a domu with the command: #>xm create <domainname> This domain uses file based Virtual block devices. And now the hard drive performance goes down

Can someone please explain what's wrong here. And how to solve it. I run CentOS-4.1 MSI K8N Neo Platinum Athlon 3000 Seagate Barracuda 7200.7 S-ATA disc [root at amd64 kai]# /sbin/hdparm -tT /dev/sda /dev/sda: Timing cached reads: 2808 MB in 2.00 seconds = 1402.81 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device Timing buffered disk reads: