similar to: Centos 7.0 and mismatched swap file

On Mon, Feb 16, 2015 at 12:07 AM, Michael Schumacher <michael.schumacher at pamas.de> wrote: > Btw., are you sure you want to use XFS for a mail server? I made some > tests about a year ago and found that EXT4 is by the factor 10 faster > compared to XFS. The tests I performed were using the "maildir" style > postfix installation that results in many thousands files in

Everyone, I am putting together a new mail server for our firm using a SuperMicro with Centos 7.0. When performed the install of the os, I put 16 gigs of memory in the wrong slots on the mother board which caused the SuperMicro to recognize 8 gigs instead of 16 gigs. When I installed Centos 7.0, this error made the swap file 8070 megs instead of what I would have expected to be a over 16000

On 2015-02-15, Gregory P. Ennis <PoMec at PoMec.Net> wrote: > > I am putting together a new mail server for our firm using a SuperMicro > with Centos 7.0. When performed the install of the os, I put 16 gigs of > memory in the wrong slots on the mother board which caused the > SuperMicro to recognize 8 gigs instead of 16 gigs. When I installed > Centos 7.0, this error made

On Sun, 2015-02-15 at 17:37 -0800, Keith Keller wrote: > On 2015-02-15, Gregory P. Ennis <PoMec at PoMec.Net> wrote: > > > > I am putting together a new mail server for our firm using a SuperMicro > > with Centos 7.0. When performed the install of the os, I put 16 gigs of > > memory in the wrong slots on the mother board which caused the > > SuperMicro to

On 16/02/2015 10:04, Chris Murphy wrote: > This is a recent benchmarking using Postmark which supposedly > simulates mail servers. XFS stacks up a bit better than ext4. > http://www.phoronix.com/scan.php?page=article&item=linux-3.19-ssd-fs&num=3 > > A neat trick for big busy mail servers that comes up on linux-raid@ > and the XFS list from time to time, is using md

On Mon, Feb 16, 2015 at 6:47 AM, Eliezer Croitoru <eliezer at ngtech.co.il> wrote: > I am unsure I understand what you wrote. > "XFS will create multiple AG's across all of those > devices," > Are you comparing md linear/concat to md raid0? and that the upper level XFS > will run on top them? Yes to the first question, I'm not understanding the second

Morning Gregory, Sunday, February 15, 2015, 6:42:32 PM, you wrote: > I am putting together a new mail server for [...] > I am using the default xfs file system on the other partitions. Is > there a way to expand the swap file? If not, then is this problem > sufficiently bad enough for me to start over with a new install. I do > not want to start over unless I need to. I think

On Mon, Feb 16, 2015 at 10:21 AM, Chris Murphy <lists at colorremedies.com> wrote: > On Mon, Feb 16, 2015 at 6:47 AM, Eliezer Croitoru <eliezer at ngtech.co.il> wrote: > >> I am unsure I understand what you wrote. >> "XFS will create multiple AG's across all of those >> devices," >> Are you comparing md linear/concat to md raid0? and that

Thanks Chris for the detailed response! I couldn't understand the complex sentence about XFS and was almost convinced that XFS might offer a new way to spread across multiple disks. And in this case it's mainly me and not you. Now I understand how a md linear/concat array can be exploited with XFS! Not related directly but given that XFS has commercial support, it can be an advantage

Everyone, I recently added a 300gig Seagate sata drive on a Centos 5.0 and have a couple of questions. The drive was recognized with the device as /dev/sdc. The system came with some SCCI drives that are labeled as /dev/sda and /dev/sdb. I was surprised that the sata drives used sdc. Are the sata drives considered more like SCCI or IDE drives? The real problem occurred when I tried to

On Thu, 2014-11-27 at 18:50 -0600, Gregory P. Ennis wrote: > Date: Sun, 23 Nov 2014 13:50:17 -0600 > > On Sun, 23 Nov 2014 13:07:47 -0600 > Gregory P. Ennis wrote: > > > I also changed the boot level to 5. > > Do you mean the runlevel? If so, are you sure that you changed it correctly? > > Centos 7 doesn't use runlevels set in inittab like previous

Everyone, I have installed Centos 7.0 on my homework machine in order to take a test drive with it, and am low on the learning curve with it at this point. I have a small Gateway SX2855-UB12P. I have a critical hurdle in that when I try a reboot or when I do a 'shutdown now -r' command the system will start a reboot process but hangs right after the os choices are presented. My

On 01/12/14 18:36, Gregory P. Ennis wrote: > On Thu, 2014-11-27 at 22:04 -0600, Gregory P. Ennis wrote: >> On Thu, 2014-11-27 at 18:50 -0600, Gregory P. Ennis wrote: >>> Date: Sun, 23 Nov 2014 13:50:17 -0600 >>> >>> On Sun, 23 Nov 2014 13:07:47 -0600 >>> Gregory P. Ennis wrote: >>> >>>> I also changed the boot level to 5.

On Mon, November 2, 2015 11:43 am, Mike - st257 wrote: > On Mon, Nov 2, 2015 at 7:40 AM, Ramaseshan S <ramaseshan at fractalio.com> > wrote: > >> I have been playing around with customizing the centos to create a spin >> for >> my workplace. >> I am using centos 6.6 minimal, and trying to change the centos name to >> some >> random string.

On Sun, 23 Nov 2014 13:07:47 -0600 Gregory P. Ennis wrote: > I also changed the boot level to 5. Do you mean the runlevel? If so, are you sure that you changed it correctly? Centos 7 doesn't use runlevels set in inittab like previous versions did. I see that fact is actually noted in /etc/inittab, along with the expected way to do it. -- MELVILLE THEATRE ~ Real D 3D Digital Cinema ~

I have been playing around with customizing the centos to create a spin for my workplace. I am using centos 6.6 minimal, and trying to change the centos name to some random string. I have been able to change the name in the grub using grub.conf, but the name while the system is booting, I am not able to find a reference to that. Can somebody help me with that ? Attached screenshot. Anyhelp with

On 11/23/2014 12:02 PM, Edward M wrote: > > On 11/23/2014 10:58 AM, Gregory P. Ennis wrote: >> Everyone, >> >> I have installed Centos 7.0 on my homework machine in order to take a >> test drive with it, and am low on the learning curve with it at this >> point. I have a small Gateway SX2855-UB12P. >> >> I have a critical hurdle in that when I try

I have a lot of people whispering "zfs" in my virtual ear these days, and at the same time I have an irrational attachment to xfs based entirely on its lack of the 32000 subdirectory limit. I''m not afraid of ext4''s newness, since really a lot of that stuff has been in Lustre for years. So a-benchmarking I went. Results at the bottom:

On my 'older' systems that include Centos 5.5 and Fedora 12, vncserver is running on ports 580n where n is defined by userid in the /etc/sysconfig/vncserver I just spent a bit of time getting it working on my new Centos 6.3 server and found it listening on ports 590n. When did the change occur? And guess I should test out where it is on Fedora 17...

Has anyone actually used a SSD in a Centos setup? My little experiment with a s/h WD drive for /tmp and SWAP partitions kicked the bucket on Wednesday, when the poor WD drive caught the click-of-death. It was a s/h drive to start with and lasted about 4 months. But that was without the /var/log/ partition being written to it, as I mounted that back onto /var/log from the original drive. So