-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Multipath must be manually configured via CLI.
On June 21, 2016 7:44:39 PM GMT+02:00, Harald Leithner <[email protected]> wrote: >Hi again^^, > >I miss interpreted the benchmark result, with writeback cache is 5500 >MB/s so thats ok... with direct IO it gets about 100 MB/s > >But I have still no clue how I could use multipath with proxmox web >interface. > >regards, > >Harald > >Am 21.06.2016 um 19:15 schrieb Harald Leithner: >> Hi, >> >> I have a MSA2312 connected with 1gbit to a 3 node PVE 4.2 Cluster. >> I managed to get ISCSI and LVM working and attached it to a VM. >> >> Atm I didn't manage to get multipath working with PVE because the >> Wikipage tells me how to create multipath (which works) but not how >PVE >> uses it for LVM VGs... maybe someone give me a hint. >> >> Anyway the main problem is that fio only gives me a read performance >of >> 5 mb/s if I attach a disk as virtio or scsi device with cache >"Writeback". >> >> If I attach the same SAN Drive directly in the VM with iSCSI (with >and >> without multipath) I get about 112 MB/s. >> >> I also get this speed on the pve host. >> >> I use: >> >> fio --filename=/dev/sdb --direct=1 --rw=read --bs=1m --size=20G >> --numjobs=200 --runtime=60 --group_reporting --name=file1 >> >> for benchmarking. >> >> While benchmarking the VM I see 1300% cpu usage on the host (mainly >sys >> time) >> >> Maybe someone has a idea? >> >> regards >> > >-- >Harald Leithner > >ITronic >Wiedner Hauptstraße 120/5.1, 1050 Wien, Austria >Tel: +43-1-545 0 604 >Mobil: +43-699-123 78 4 78 >Mail: [email protected] | itronic.at >_______________________________________________ >pve-user mailing list >[email protected] >http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user - -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. -----BEGIN PGP SIGNATURE----- Version: APG v1.1.1 iHsEAREKADsFAldpff80HE1pY2hhZWwgUmFzbXVzc2VuIChNaWNoYWVsIEdQRy1r ZXkpIDxtaXJAbWlyYXMub3JnPgAKCRBUSthV4+gJFxT5AJ4tecDddRv/tmdE7m1C fRsqVl2xYQCeOPpFhAVXLazq8HniLZrf+LAtfjY= =ETUg -----END PGP SIGNATURE----- ---- This mail was virus scanned and spam checked before delivery. This mail is also DKIM signed. See header dkim-signature. _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
