Hi I think this problem is related DRDB and not PVE!
--- Gilberto Nunes Ferreira (47) 3025-5907 (47) 99676-7530 - Whatsapp / Telegram Skype: gilberto.nunes36 Em qua, 10 de out de 2018 às 10:23, Adam Weremczuk <[email protected]> escreveu: > Hi all, > > I'm trying out DRBD Pacemaker HA Cluster on Proxmox 5.2 > > I have 2 identical servers connected with 2 x 1 Gbps links in bond_mode > balance-rr. > > The bond is working fine; I get a transfer rate of 150 MB/s with scp. > > Following this guide: > https://www.theurbanpenguin.com/drbd-pacemaker-ha-cluster-ubuntu-16-04/ > was going smoothly up until: > > drbdadm -- --overwrite-data-of-peer primary r0/0 > > cat /proc/drbd > version: 8.4.10 (api:1/proto:86-101) > srcversion: 17A0C3A0AF9492ED4B9A418 > 0: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r----- > ns:10944 nr:0 dw:0 dr:10992 al:8 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f > oos:3898301536 > [>....................] sync'ed: 0.1% (3806932/3806944)M > finish: 483:25:13 speed: 2,188 (2,188) K/sec > > The transfer rate is horribly slow and at this pace it's going to take > 20 days for two 4 TB volumes to sync! > > That's almost 15 times slower comparing with the guide video (8:30): > https://www.youtube.com/watch?v=WQGi8Nf0kVc > > The volumes have been zeroed and contain no live data yet. > > My sdb disks are logical drives (hardware RAID) set up as RAID50 with > the defaults: > > Strip size: 128 KB > Access policy: RW > Read policy: Normal > Write policy: Write Back with BBU > IO policy: Direct > Drive Cache: Disable > Disable BGI: No > > Performance looks good when tested with hdparm: > > hdparm -tT /dev/sdb1 > > /dev/sdb1: > Timing cached reads: 15056 MB in 1.99 seconds = 7550.46 MB/sec > Timing buffered disk reads: 2100 MB in 3.00 seconds = 699.81 MB/sec > > The volumes have been zeroed and contain no live data yet. > > Any idea why the sync rate is so painfully slow and how to improve it? > > Regards, > Adam > > _______________________________________________ > pve-user mailing list > [email protected] > https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user > _______________________________________________ pve-user mailing list [email protected] https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
