similar to: High i/o-wait in guest but no i/o-wait on host

On 09.12.2015 00:39, NightLightHosts Admin wrote: > On Tue, Dec 8, 2015 at 5:26 PM, Dennis Jacobfeuerborn > <dennisml at conversis.de> wrote: >> Hi, >> today we ran into a strange problem: When performing a regular Windows >> 2008r2 update apparently among other things the following was installed: >> "SUSE - Storage Controller - SUSE Block Driver for

Hi all, I am attempting to tune a (RedHat 7.3) Linux box running samba 2.2.8a. This application is serving files to PC clients via samba, and the PC clients are uploading files to the server via ftp. Now for the specifics... These files are mpeg2 encoded video with bit rates ranging from 3Mbit/s - 20Mbit/s. When there is zero write activity against the disks I can kick off multiple concurrent

This is pretty epic if true. I'm installing some Fail 2008r2 now to check. Is your hypervisor running CentOS 6 or 7? -- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro ----- Original Message ----- > From: "Dennis Jacobfeuerborn" <dennisml at conversis.de> > To: "Discussion about the virtualization on CentOS" <centos-virt at

Hi, today we ran into a strange problem: When performing a regular Windows 2008r2 update apparently among other things the following was installed: "SUSE - Storage Controller - SUSE Block Driver for Windows" Previously the disk drive was using the Red Hat virtio drivers which worked just fine but after the reboot after the update I just get a blue screen indicating that Windows cannot

The HBA is an HP H220. We haven?t really benchmarked individual drives ? all 12 drives are utilized in one RAID-10 array, I?m unsure how we would test individual drives without breaking the array. Trying ?hdparm -tT /dev/sda? now ? it?s been running for 25 minutes so far? Kelly On 2016-05-25, 2:12 PM, "centos-bounces at centos.org on behalf of Dennis Jacobfeuerborn"

Hi, I'm trying to build a redundant duo of firewalls/routers/gateways and I'm thinking about not putting any disks in them and instead using a usb-stick raid-1 as storage. Has anyone any experience with this? Since the machines will be running pretty much only iptables, conntrackd and keepalived there is not going to be a lot of disk activity going on and the plan is to do all the

On 27.02.2018 16:45, Stephen John Smoogen wrote: > On 27 February 2018 at 06:11, Dennis Jacobfeuerborn > <dennisml at conversis.de> wrote: >> Hi, >> I'm currently trying to mirror a couple of yum repositories and the only >> tool that seems to be available for this is reposync. >> Unfortunately reposync for some inexplicable reason seems to use the yum

Hdparm didn?t get far: [root at r1k1 ~] # hdparm -tT /dev/sda /dev/sda: Timing cached reads: Alarm clock [root at r1k1 ~] # On 2016-05-25, 2:44 PM, "Kelly Lesperance" <klesperance at blackberry.com> wrote: >The HBA is an HP H220. > >We haven?t really benchmarked individual drives ? all 12 drives are utilized in one RAID-10 array, I?m unsure how we would test

On 15 Apr 2015 13:22, "Dennis Jacobfeuerborn" <dennisml at conversis.de> wrote: > > On 15.04.2015 12:41, Alessandro Baggi wrote: > > Hi there, > > Yesterday I've updated from 7 to 7.1 and today I've noticed on 2 server > > that postgresql systemd file was replaced with default values. This make > > postgres to no start and webserver give me

Hi, I'm currently trying to mirror a couple of yum repositories and the only tool that seems to be available for this is reposync. Unfortunately reposync for some inexplicable reason seems to use the yum config of the local system as a basis for its work which makes no sense and creates all kinds of problems where cache directories and metadata gets mixed up. Are there any alternatives? Some

Do you need the whole configuration? On the switch end, we have the relevant VLAN (VLAN 48) with the assigned IP address of 192.168.48.101 and the range of ports (Gi1/0/1 - Gi1/0/8) assigned to that VLAN. Seems - and acts - like a legitimate setup and works fine, except for this particular instance. Thanks. Boris. On Fri, Jan 23, 2015 at 8:54 PM, Dennis Jacobfeuerborn < dennisml at

Andrew and Dennis are spot on. Their conclusions about your server being connected to an access port and not a trunk port would be my conclusion as well. On Sat, Jan 24, 2015 at 9:11 AM, Dennis Jacobfeuerborn < dennisml at conversis.de> wrote: > Hi Boris, > what I'd like to know is the actual VLAN configuration of the switch > port (link-type and tagged and untagged VLANs).

Op 09-12-15 om 01:00 schreef Dennis Jacobfeuerborn: > On 09.12.2015 00:39, NightLightHosts Admin wrote: >> On Tue, Dec 8, 2015 at 5:26 PM, Dennis Jacobfeuerborn >> <dennisml at conversis.de> wrote: >>> Hi, >>> today we ran into a strange problem: When performing a regular Windows >>> 2008r2 update apparently among other things the following was

On 09.12.2015 13:47, Patrick Bervoets wrote: > > > Op 09-12-15 om 01:00 schreef Dennis Jacobfeuerborn: >> On 09.12.2015 00:39, NightLightHosts Admin wrote: >>> On Tue, Dec 8, 2015 at 5:26 PM, Dennis Jacobfeuerborn >>> <dennisml at conversis.de> wrote: >>>> Hi, >>>> today we ran into a strange problem: When performing a regular

CentOS 8.0 1905 is using Linux Kernel 4.18? Not Linux Kernel 5.x? On Wed, 25 Sep 2019 at 01:46, Dennis Jacobfeuerborn <dennisml at conversis.de> wrote: > > Already bummed that the 4.18 kernel is too old for /proc/pressure :( > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos

On Thu, Feb 19, 2015 at 5:47 AM, Dennis Jacobfeuerborn <dennisml at conversis.de> wrote: > I think the problem is that you simply have to draw a distinction > between technology and product. > The rise of the Linux desktop will never happen because Linux is not a > product but a technology and as a result has to be a jack of all trades. I'm unconvinced. True, Chromebooks

[merging] The HBA the drives are attached to has no configuration that I?m aware of. We would have had to accidentally change 23 of them ? Thanks, Kelly On 2016-05-25, 1:25 PM, "Kelly Lesperance" <klesperance at blackberry.com> wrote: >They are: > >[root at r1k1 ~] # hdparm -I /dev/sda > >/dev/sda: > >ATA device, with non-removable media > Model

On Tue, Dec 8, 2015 at 5:26 PM, Dennis Jacobfeuerborn <dennisml at conversis.de> wrote: > Hi, > today we ran into a strange problem: When performing a regular Windows > 2008r2 update apparently among other things the following was installed: > "SUSE - Storage Controller - SUSE Block Driver for Windows" > > Previously the disk drive was using the Red Hat virtio

Hi I have a pair of 1950's running as a failover pair of front ends for a Fibre array and a SCSI array. i am currently just running on the SCSI array and the fibre is not in production yet. I am seeing load on the active node sit at around 8 and throughput to the SCSI array is around 25MB/s - I would imagine i should see better figures that this and less machine load. Can anyone give

Hello, In the past we've had 4 loadbalanced servers configured with courier pop3 and dovecot handling respectively POP3 and IMAP connections. These 4 servers have a shared NFS storage on a Netapp FAS3220 controller with SAS disks. This setup is handling 50 POP3 sessions per second without any problems. Now we're installing 6 new loadbalanced servers to do the same job on the same