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Well I can't enable discard via GUI. Or do you mean I should enable it via conf? Its a debian lxc ct.

ZFS

Thanks, hmm I haven't enabled discard and I am using Virtio Block too.

Hi, I have a CT HD with 100G, it was once filled up to 90%, now its just filled with 14% of data. When I backup the CT now, it takes a lot of time, in the begining it was faster. Can I somehow clean that HD or somehow get teh sparse space back?

Here the results of my last benchmarks: Model Size TBW BW IOPS Intel DC S4500 480GB 900TB 62,4 MB/s 15,0k Samsung PM883 240GB 341TB 67,2 MB/s 17,2k

Data redundancy The performance and memory usage of the 4 nodes is fine. Somehow it seems that it makes no really sense to add a 5. node...

But what if one of the MONs dies? Do I just set the 4. Node become a Monitor? Note: All my cluster have just a small single boot disk. I wanted to increase redundancy by adding a 5. Node even if I don't need the additional performance or disk space yet.

Hi, I am currently run a 4 node Ceph cluster with an 3/2 pool, 3 Nodes are monitors with OSDs and 1 hold just OSDs. Now I want to add another node and upgrade both Nodes to monitors, but stay with the 3/2 pool to have the possibility of 2 failing Nodes. Does the 5. Node need to have the same...

Recently I benchmarked Samsungs Enterprise SSD 860DCT with 960GB with my usual benchmark setup and the result was just horrible: FIO Command: fio --filename=/dev/sda --direct=1 --sync=1 --rw=write --bs=4k --numjobs=1 --iodepth=1 --runtime=60 --time_based --group_reporting --name=journal-test...

thanks alwin!! this did the trick. and after creating the OSD it got the ID 1 ;-)

hmm.. i tried to add the ssd again and check the output of syslog: Feb 13 11:10:00 ceph8 systemd[1]: Starting Proxmox VE replication runner... Feb 13 11:10:01 ceph8 systemd[1]: Started Proxmox VE replication runner. Feb 13 11:10:52 ceph8 pvedaemon[2536]: <root@pam> starting task...

ok tried both partprobe and reboot but that ssd is not going to be turned into an osd.. Now I tried to add a completely new SSD but I receive the same result. Can be the node the faulty part? What can I try? beside reinstalling proxmox ;-)

Hi, I wanted to add a new ssd and make an OSD out of it, but after 'create: OSD' its marked as 'partitions'. Ok, its not the first time in my life, so I issued dd if=/dev/zero of=/dev/sdd count=1000000 followed by ceph zap /dev/sdd But still 'partitions'... I deleted all partitions with fdisk...

No. Workaround: root disks of those VMs are stored on local-zfs Since this workaround (about Oct 2018), backup to the same NFS store works without any issues.

Hi, I have a virtualized PBX (Askozia) VM which I can't control through the gui. If I send shutdown nothing happens. Now I have seen that I could activate VMware Tools (or HyperV Linux Integration Services), its just a checkbox. Should I try to activate it? Can KVM use that tools somehow to...

Hab nur mal eine CT von local wieder zurück auf Ceph Storage gelegt und gestern hatte ich das gleiche Problem mit dem hängenden Backup wieder.

Ich habe nun vor gut 2 Monaten die 3 CTs vom Ceph Storage auf das local Storage verschoben, Backup mit lokalem tmp wie zuvor auf das NFS, und nun ist Schluss mit den hängenden Backups. Ich werde mal die Nodes mit den neuesten Updates versorgen und dann die CTs wieder auf das Ceph legen.

Hi, on my P420i I had the same issue, so I installed the OS on the ODD SATA port.

Hallo Leute, eine kurze Frage: Ist eine Replikation von VMs aus dem Cluster zu einem stand alone node (sprich einem ohne cluster) möglich? BTW: Wie wäre es wenn man so einen "Kurze Frage - kurze Antwort"-Thread startet, gibts in vielen anderen Foren und man muss nicht für jede mini Frage einen...

Sorry hab das dumm geschrieben: Es sind insgesamt 6 nodes: 3 als Ceph Mon und OSDs, 1er nur mit OSDs (kein Mon) und 2 sind ohne Ceph (keine OSDs, kein Mon). Zwischen dem letzten "regulären" Backup Job (der immer erfolgreich ist) und dem Task mit den "bösens" CTs vergehen 4:30 Stunden... Da es...