Search found 12 matches

by ladam@ictuniverse.eu
2019/08/11 16:58:20
Forum: CentOS 7 - Software Support
Topic: HA iSCSI Target with DRBD (2 node cluster how-to)
Replies: 30
Views: 10827

Re: HA iSCSI Target with DRBD (2 node cluster how-to)

Hi,

So not so great. Rate was probably due to 2 drbd source at the same time.
Max is still 550 Mb.
each.
So I'm still looking because my goal is to sync 3 servers with 80 TB.
For the secret, yes but for now it's only on a private network.

Regards and thanks for your support
by ladam@ictuniverse.eu
2019/08/11 10:12:37
Forum: CentOS 7 - Software Support
Topic: HA iSCSI Target with DRBD (2 node cluster how-to)
Replies: 30
Views: 10827

Re: HA iSCSI Target with DRBD (2 node cluster how-to)

Hi, With this in the drbd0.res, I reach 1.5 GB in iftop. disk { al-extents 3389; no-disk-flushes ; no-disk-barrier; c-plan-ahead 50; c-fill-target 24M; c-min-rate 10M; c-max-rate 1000M; } net { max-buffers 72000; max-epoch-size 20000; sndbuf-size 2M; cram-hmac-alg sha1; shared-secret "FooFunFactory"...
by ladam@ictuniverse.eu
2019/08/10 20:42:40
Forum: CentOS 7 - Software Support
Topic: HA iSCSI Target with DRBD (2 node cluster how-to)
Replies: 30
Views: 10827

Re: HA iSCSI Target with DRBD (2 node cluster how-to)

So, It's one 10 GB interface on each server directly connected via direct fiber. Only used for sync. MTU set to 9000 [root@san3 ~]# ethtool ens3f4 | grep -i speed Speed: 10000Mb/s [root@san3 ~]# [root@san3 ~]# ping 10.0.0.31 -c 4 PING 10.0.0.31 (10.0.0.31) 56(84) bytes of data. 64 bytes from 10.0.0....
by ladam@ictuniverse.eu
2019/08/10 15:28:02
Forum: CentOS 7 - Software Support
Topic: HA iSCSI Target with DRBD (2 node cluster how-to)
Replies: 30
Views: 10827

Re: HA iSCSI Target with DRBD (2 node cluster how-to)

Yes. But not the speed. It took 7 days to sync 1.8 TB over 1GB ethernet speed Now I have setup a 10 GB, but it seems but slow and it will take a month for 8TB regards [root@san3 log]# drbdadm status drbd0 role:Primary disk:UpToDate san4 role:Secondary replication:SyncSource peer-disk:Inconsistent do...
by ladam@ictuniverse.eu
2019/08/10 13:33:30
Forum: CentOS 7 - Software Support
Topic: HA iSCSI Target with DRBD (2 node cluster how-to)
Replies: 30
Views: 10827

Re: HA iSCSI Target with DRBD (2 node cluster how-to)

Thanks, Actually we are in testing phase. Question : sync seems to be really slow. How can we check that ? (DRBD9) I have 10G direct link between the 2 servers my config is now: resource drbd0 { disk { on-io-error detach; no-disk-flushes ; no-disk-barrier; c-plan-ahead 0; c-fill-target 24M; c-min-ra...
by ladam@ictuniverse.eu
2019/08/10 07:55:16
Forum: CentOS 7 - Software Support
Topic: HA iSCSI Target with DRBD (2 node cluster how-to)
Replies: 30
Views: 10827

Re: HA iSCSI Target with DRBD (2 node cluster how-to)

Hello all, This config works fine on Centos 7 yum -y install http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm yum -y install fence-agents-all pcs targetcli "*drbd90*" vim-enhanced bash-completion net-tools bind-utils mlocate setroubleshoot-server policycoreutils-{python,devel} iscsi-...
by ladam@ictuniverse.eu
2019/08/04 15:25:21
Forum: CentOS 7 - Software Support
Topic: HA iSCSI Target with DRBD (2 node cluster how-to)
Replies: 30
Views: 10827

Re: HA iSCSI Target with DRBD (2 node cluster how-to)

Hello, I think i got the solution. I just add the portal into the step 12 rm -f /root/cluster pcs cluster cib /root/cluster pcs -f /root/cluster resource create iscsi-target ocf:heartbeat:iSCSITarget portals="192.168.200.244:326 0" iqn="iqn.2019-08.ict:sn.1234567890" allowed_initiators="iqn.1998-01....
by ladam@ictuniverse.eu
2019/08/04 11:41:25
Forum: CentOS 7 - Software Support
Topic: HA iSCSI Target with DRBD (2 node cluster how-to)
Replies: 30
Views: 10827

Re: HA iSCSI Target with DRBD (2 node cluster how-to)

Hello,

Your installation guide is based on a redhat7.x distri?

Regards
by ladam@ictuniverse.eu
2019/07/28 16:46:42
Forum: CentOS 7 - Software Support
Topic: HA iSCSI Target with DRBD (2 node cluster how-to)
Replies: 30
Views: 10827

Re: HA iSCSI Target with DRBD (2 node cluster how-to)

Sorry,

resource-agents-4.1.1-12.el7_6.8.x86_64
Laurent
by ladam@ictuniverse.eu
2019/07/28 16:37:49
Forum: CentOS 7 - Software Support
Topic: HA iSCSI Target with DRBD (2 node cluster how-to)
Replies: 30
Views: 10827

Re: HA iSCSI Target with DRBD (2 node cluster how-to)

What version of the resources are you using?

how can I check that?

Regards

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