Search found 51 matches

by penguinpages
2020/05/21 13:31:10
Forum: CentOS 7 - General Support
Topic: Disk apparently in use by the system; will not make a filesystem here
Replies: 2
Views: 197

Re: Disk apparently in use by the system; will not make a filesystem here

I think I may have figured it out. The issue is likly some weirdness of the RAID controller abstracting the device as a dev/mapper object Calls to create partition of the block device I have traditionally used worked.. but could not format. But once I addressed the disk as a /dev/mapper device I was...
by penguinpages
2020/05/20 13:00:11
Forum: CentOS 7 - General Support
Topic: Disk apparently in use by the system; will not make a filesystem here
Replies: 2
Views: 197

Disk apparently in use by the system; will not make a filesystem here

I am baffled here. I have two servers. They are set to have JBOD for controller. The motherboard(s) is new.. but when I moved drives over they just showed up fine. I had a drive that was a small 240GB SSD I wanted to replace with a 512GB one. I removed drive and its VDO logical device name etc. Tryi...
by penguinpages
2020/05/03 17:25:13
Forum: CentOS 7 - General Support
Topic: vdo / pvcreate - Device excluded by a filter.
Replies: 1
Views: 145

vdo / pvcreate - Device excluded by a filter.

I am replacing Gluster + VDO brick with new drive. New drive came out of Windows system. I did wipe and removed partions.. even did a dd if=/dev/zero of=/dev/disk/by-id/ata-SAMSUNG_SSD_PM851_mSATA_512GB_S1EWNYAF609306 I keep getting error when I run command to lay down VDO on device: [root@odin ~]# ...
by penguinpages
2020/04/07 12:08:08
Forum: CentOS 7 - General Support
Topic: KVM OVS VM Create - Network Bridge for new VM
Replies: 2
Views: 205

Re: KVM OVS VM Create - Network Bridge for new VM

I think it is lack of understanding what options to pass as switches to command line that end up as valid XML of the VM. I did some reading here : https://libvirt.org/formatdomain.html#elementsNICS and it has some good details but ...<sigh> no examples One would think mapping like below of each opti...
by penguinpages
2020/04/06 18:51:39
Forum: CentOS 7 - General Support
Topic: KVM OVS VM Create - Network Bridge for new VM
Replies: 2
Views: 205

KVM OVS VM Create - Network Bridge for new VM

I have an environment where i typically use a script to create VMs from a clone image, but now trying to move to a full deploy from image as a new VM build script. To do this I need to not do a clone of VM (which works fine): virt-clone --original centos7 --name $vm --auto-clone Where the VM is atta...
by penguinpages
2020/01/28 17:12:58
Forum: CentOS 7 - General Support
Topic: HA Proxy - Set Subnet Mask
Replies: 0
Views: 154

HA Proxy - Set Subnet Mask

I am trying to use HAProxy for IPLB to front end my Openshift cluster. Steps I use after installed and IPforwarding is enabled on host: (Below is just small section example.. but shows issue) # Edit HA Proxy settings for VIP forwarding on both ns01 and ns02 cp /etc/haproxy/haproxy.cfg /etc/haproxy/h...
by penguinpages
2020/01/28 17:06:01
Forum: CentOS 7 - General Support
Topic: KVM Shared /etc/libvirt/qemu
Replies: 1
Views: 197

Re: KVM Shared /etc/libvirt/qemu

Well.. I guess I will just answer my own question based on ... Gave it a try and it seems to work ok. Goal is that if one KVM server goes offline. Any VM defined will have its configuration file available to other nodes in the cluster and so able to just restart on other nodes. I have a common file ...
by penguinpages
2019/12/19 13:04:49
Forum: CentOS 7 - General Support
Topic: KVM Shared /etc/libvirt/qemu
Replies: 1
Views: 197

KVM Shared /etc/libvirt/qemu

Four CentOS7 systems. All have shared disk for VMs of /data/gv0/vms so guest VMs are replicated / shared for the data files. Ex: kvm01,kvm02,kvm03,kvm04 I had a server die. And with snapshots... six changes and the mess of disks I added to it for testing... it was a bit of a mess. So I went to the d...
by penguinpages
2019/12/19 12:55:12
Forum: CentOS 7 - General Support
Topic: Centos 7 Generic Cloud image - centos user password change
Replies: 2
Views: 955

Re: Centos 7 Generic Cloud image - centos user password change

This topic is something on my bucket list. Just so we can work this on same context.. Can you RSVP with: 1) Location for CEntos7 or 8 cloud image your using 2) What KVM version your using 3) What OpenStack version? I have a four node KVM CentOS7 cluster with gluster... working towards OpenStack + Op...
by penguinpages
2019/11/07 18:20:35
Forum: CentOS 7 - General Support
Topic: VDO Ghost Volume - Delete
Replies: 1
Views: 278

Re: VDO Ghost Volume - Delete

<sigh> Never mind.. Just need to try harder. [root@thor var]# man vdo <snip> --confFile=file -ffile Specifies an alternate configuration file; the default is /etc/vdoconf.yml . [root@thor var]# head -35 /etc/vdoconf.yml #################################################################### # THIS FILE...

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