Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hey,.. well I know many shortcuts ;-P SLES, RHEL aka EL,etc... so XENserver "must" be fine too. My goal is to have: a Server for KVM hosting... Mail server (Open change + Cyrus + postfix,...) Fileserver, AD DC using Samba 4, and some more services... If you Ask yourself why I try to do this using an Atom 2750 8 Core ad 16 GB on Standard Sata disks I can answer it easily. I have to serve this services for 5 User and I do not have to care about High IO loads etc, to separate sequential from random IO to push the performance higher. My second Problem is that this server have their place in very small room without any possibility of cooling. So Atom with 20W TDP each must do this. another reason is the physical size,.. If I would try to put one of my HP DL 380 I have at home, I would not be able to close the door.. So better don't ask why I choose this components. It even took me 2 hours to disassemble and assemble the rack again in fact the door frame was 3mm smaller :-P BUT I must see the good things: SCSI Cluster no longer exists…. My first and my worst shared storage. 2015-02-09 17:42 GMT+01:00 Digimer <lists at alteeve.ca>: > Sorry, "EL" is a short way of saying "RHEL, CentOS or other RHEL-based > distroes". CentOS 6 is fine. > > Please don't let yourself get too frustrated. HA clustering is not hard, > but it is complex. It takes time to get it all working right. > > What is your primary goal? To run an HA cluster for hosting VMs? > > digimer > > On 09/02/15 11:32 AM, Patrick Prilisauer wrote: > > Hey, I don't own EL but CentOS6 must do it also?. > > > > I know sitting for at least two weeks on setting up the Server. I'm > > getting really frustrated. > > > > I've bought the combination of Supermicro and Adaptec to do not have to > > handle mdraid + uefi + workaround... > > > > I will try to do the very last setup on EL6.. supermicro was my worst > > decision... > > > > I'll be back ;-) > > > > 2015-02-09 17:10 GMT+01:00 Digimer <lists at alteeve.ca > > <mailto:lists at alteeve.ca>>: > > > > Hello, > > > > Trying to adapt https://alteeve.ca/w/AN!Cluster_Tutorial_2 to EL7 > + > > pacemaker will be no easy task at all. The concepts can port, but > after > > that, you're pretty much on your own. > > > > Out of curiosity, can you try pacemaker 1.1.12 on cman+corosync on > > EL6? I've avoided EL7 so far because it's still very very new, and a > > major departure from previous releases, so I am not convinced it's > ideal > > for HA yet. > > > > If you find that the RAID stuff works better on EL6, then it might > be > > a sign of driver issues or something. Truth be told though, my early > > experiments with RAID and Supermicro didn't end well, so this might > well > > be not OS related, too. Any firmware updates available? > > > > On 09/02/15 11:02 AM, Patrick Prilisauer wrote: > > > Hey there, > > > > > > Ih have found out one issue, the Problem was or better still is a > > > defunced mainboard. > > > I'm running an Adaptec 6504e on a Supermicro A1ASI-2750 the > Mainboard > > > occures some strange timeouts, which hasn't been reported by the > aacraid > > > driver because they were to short. > > > But suddenly after a few days the timeouts getting larger.. and > some > > > other strange things happened linke the uefi bios doesn't detect > the > > > card etc. > > > > > > Anyway, I'm still fighting with the pacemakersetup, I do not > understand > > > the drbd documentation, the configs shown on one chapter doesn't > match > > > the resources in another chapter... > > > > > > Still if somebody knows where I could find a complete > configuration made > > > with the pcs programm for pacemaker. I would be so happy. > > > > > > BR > > > > > > 2015-02-04 10:07 GMT+01:00 Patrick Prilisauer < > prilisauer at googlemail.com <mailto:prilisauer at googlemail.com> > > > <mailto:prilisauer at googlemail.com > > <mailto:prilisauer at googlemail.com>>>: > > > > > > Hello to all, > > > > > > I have now completely reinstalled my servers > > > according https://alteeve.ca/w/AN!Cluster_Tutorial_2 on > Centos 7 > > > modified by some OS differences. > > > Anyway, it seems that I won't understand what I'm doing wrong? > > > As you could see res_drbd_1_stop on.... 'not installed' is > > returned. > > > The last whole day spending on findinding my needle in the > > haystack > > > wont make it better. > > > > > > Any hints?, > > > Thanks > > > > > > > > > > > > OUTPUT1: > > > crm_mon > > > Last updated: Wed Feb 4 09:59:01 2015 > > > Last change: Wed Feb 4 05:18:41 2015 via crmd on at01srv01 > > > Stack: corosync > > > Current DC: at01srv02 (167772162) - partition with quorum > > > Version: 1.1.10-32.el7_0.1-368c726 > > > 2 Nodes configured > > > 4 Resources configured > > > > > > > > > Node at01srv01 (167772161): standby > > > Online: [ at01srv02 ] > > > > > > Master/Slave Set: ms_drbd_1 [res_drbd_1] > > > res_drbd_1 (ocf::linbit:drbd): FAILED at01srv02 > > (unmanaged) > > > Stopped: [ at01srv01 ] > > > stonith_fence_pcmk_1 (stonith:fence_pcmk): Started > at01srv02 > > > > > > Failed actions: > > > res_drbd_1_stop_0 on at01srv02 'not installed' (5): > call=120, > > > status=complete, last-rc-change='Wed Feb 4 09:3 > > > 5:43 2015', queued=15118ms, exec=0ms > > > > > > > > > > > > > > > OUTPUT2: > > > [root at at01srv02 linbit]# systemctl status drbd.service > > > drbd.service - DRBD -- please disable. Unless you are NOT > using a > > > cluster manager. > > > Loaded: loaded (/usr/lib/systemd/system/drbd.service; > disabled) > > > Active: failed (Result: exit-code) since Mit 2015-02-04 > > 09:57:06 > > > CET; 2min 51s ago > > > Process: 8544 ExecStart=/sbin/drbdadm adjust-with-progress > all > > > (code=exited, status=1/FAILURE) > > > Process: 8540 ExecStartPre=/sbin/drbdadm sh-nop (code=exited, > > > status=0/SUCCESS) > > > Main PID: 8544 (code=exited, status=1/FAILURE) > > > > > > Feb 04 09:57:06 at01srv02 drbdadm: [ > > > Feb 04 09:57:06 at01srv02 drbdadm: adjust net: > > > r0:failed(net-options:20) > > > Feb 04 09:57:06 at01srv02 drbdadm: ] > > > Feb 04 09:57:06 at01srv02 systemd: drbd.service: main > process > > > exited, code=exited, status=1/FAILURE > > > Feb 04 09:57:06 at01srv02 systemd: Failed to start DRBD -- > > please > > > disable. Unless you are NOT using a c...ger.. > > > Feb 04 09:57:06 at01srv02 systemd: Unit drbd.service entered > > > failed state. > > > Hint: Some lines were ellipsized, use -l to show in full. > > > > > > > > > > > > > > > > > > > > > 2015-02-02 20:46 GMT+01:00 Digimer <lists at alteeve.ca > > <mailto:lists at alteeve.ca> > > > <mailto:lists at alteeve.ca <mailto:lists at alteeve.ca>>>: > > > > > > On 02/02/15 02:44 PM, Ivan wrote: > > > > > > > > > I'm not sure that two (or more) LUKS > > partitions are > > > identical given > > > exactly the same cleartext content and the same > > > keys. There must be some > > > kind of sector randomization when writing data > to > > > make cryptoanalysis > > > harder, so it makes me think that it's not the > > case > > > (that would require > > > testing though). > > > If I'm right, I don't see how DRBD could work > in > > > that setup. (or maybe I > > > just need more sleep). > > > > > > > > > LUKS is working on the LV, which will be backed by > the > > > PV on DRBD. DRBD > > > doesn't know data, so it will simply replicate the > > LUKS > > > structure > > > faithfully to both nodes. > > > > > > Remember, for all intent and purpose, there is > > only one > > > device/luks > > > partition. DRBD is really no different from LUKS on > > > /dev/mdX devices in > > > this regard. > > > > > > > > > ah that's right - indeed more sleep needed. I've > > skipped the > > > "clustered > > > LVM" part and was thinking about two luks partitions. > > > > > > sorry for the noise. > > > > > > > > > No worries at all. When you ask a question like this, you > > have a > > > chance to learn a system better, so it's good. :) > > > > > > -- > > > Digimer > > > Papers and Projects: https://alteeve.ca/w/ > > > What if the cure for cancer is trapped in the mind of a > person > > > without access to education? > > > _________________________________________________ > > > drbd-user mailing list > > > drbd-user at lists.linbit.com <mailto: > drbd-user at lists.linbit.com> > > <mailto:drbd-user at lists.linbit.com <mailto: > drbd-user at lists.linbit.com>> > > > http://lists.linbit.com/__mailman/listinfo/drbd-user > > > <http://lists.linbit.com/mailman/listinfo/drbd-user> > > > > > > > > > > > > > > > -- > > Digimer > > Papers and Projects: https://alteeve.ca/w/ > > What if the cure for cancer is trapped in the mind of a person > without > > access to education? > > > > > > > -- > Digimer > Papers and Projects: https://alteeve.ca/w/ > What if the cure for cancer is trapped in the mind of a person without > access to education? > -------------- next part -------------- An HTML attachment was scrubbed... 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