On Mon, Jun 4, 2018, 11:20 PM Thomas Fecke <thomas.fe...@eset.de> wrote:
> Hey Juan, > > > > That would be perfect. Ill searching for weeks now and can´t find the > Bottleneck > > > > The Storage is attached to an 10 gig switch > > Storage: > > > > 1HE 19'' Chassis mit 4 hot-swap Einschüben > > 600W Platinum PSU > > Intel Xeon E5-2620 v4 CPU > > 16GB DDR4-2400 regECC RAM (2x8) > > 4x 1TB SATA3 SSD (Samsung Pro) > > LSI3108 Raidcontroller > > 2x Intel 10G-BaseT LAN > > 1x ded. KVM Port (IPMI2.0) > > > > > > The Storage is attached to an 10 gig Switch. Just our Hypervisors are > connected aswell to that switch. I don’t know the Switch Model, its rented > from our Hoster ( like the Hardware ). > > > > The Data Domain is shared via NFS. > > > > We are working a lot with Templates – so a single Template gets deployed > like 20 Times. Dunno if its important. The Guests running Win 10 and Win > Server 2016 – Guest tools are installed. > > > > “Iotop” show about 100 MB/Sec > > > > “Io sta”t show Storage Timeouts > > > > dd if=/dev/zero of=/root/testfile bs=1G count=1 oflag=sync > oflag=direct , bs=1m and bs=1000 makes a lot more sense. /root/testfile is on that storage? So where's the network medium? 1+0 Datensätze ein > > 1+0 Datensätze aus > > 1073741824 Bytes (1,1 GB) kopiert, 10,7527 s, 99,9 MB/s > Can you verify your 10g did not by mistake auto-negotiated to 1g? Y. > > DD ist way to low. When I reboot the Server its up to 800-900 MB/s. It > drops slowly to under 100 in about 5 Minutes. Like a Cache that is filling > up. > > > > RAM and CPU are fine ( maximum 50% system load – average 30% ). > > > > File system is XFS – Raid 4 is used > > > > > > > > *From:* Juan Pablo <pablo.localh...@gmail.com> > *Sent:* Montag, 4. Juni 2018 21:10 > *To:* Thomas Fecke <thomas.fe...@eset.de> > *Cc:* users@ovirt.org > *Subject:* Re: [ovirt-users] Storage IO > > > > Hi Thomas, so you are seeing high load on your storage and you are asking > 'why'? an answer with the facts you give would be: you are using your > storage, so, you have storage IO. > > > > so, if you want to dive deeper: > > -which storage are you using, specs would be nice. > > -which host model are you using? > > -network specs? card model, etc. switch model, etc. > > > > hows your setup made? iscsi? nfs? gluster? > > > > based on the former, we might get a better idea and after this some tests > could be made if needed to find if there's a bottleneck or if the > environment is working as expected.. > > > > regards, > > > > > > 2018-06-04 14:29 GMT-03:00 Thomas Fecke <thomas.fe...@eset.de>: > > Hey Guys, > > > > sorry i need to ask again. > > > > We got 2 Hypervisor with about 50 running VM´s and a single Storage with > 10 Gig connection. > > > > > > Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz > avgqu-sz await r_await w_await svctm %util > > sda 3,00 694,00 1627,00 947,00 103812,00 61208,00 > 128,22 6,78 2,63 2,13 3,49 0,39 99,70 > > > > avg-cpu: %user %nice %system %iowait %steal %idle > > 0,00 0,00 3,70 31,37 0,00 64,93 > > > > Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz > avgqu-sz await r_await w_await svctm %util > > sda 1,00 805,00 836,00 997,00 43916,00 57900,00 > 111,09 6,00 3,27 1,87 4,44 0,54 99,30 > > > > avg-cpu: %user %nice %system %iowait %steal %idle > > 0,00 0,00 3,54 29,96 0,00 66,50 > > > > Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz > avgqu-sz await r_await w_await svctm %util > > sda 2,00 822,00 1160,00 1170,00 46700,00 52176,00 > 84,87 5,68 2,44 1,57 3,30 0,43 99,50 > > > > avg-cpu: %user %nice %system %iowait %steal %idle > > 0,00 0,00 5,05 31,46 0,00 63,50 > > > > Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz > avgqu-sz await r_await w_await svctm %util > > sda 3,00 1248,00 2337,00 1502,00 134932,00 48536,00 > 95,58 6,59 1,72 1,53 2,01 0,26 99,30 > > > > avg-cpu: %user %nice %system %iowait %steal %idle > > 0,00 0,00 3,95 31,79 0,00 64,26 > > > > Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz > avgqu-sz await r_await w_await svctm %util > > sda 0,00 704,00 556,00 1292,00 19908,00 72600,00 > 100,12 5,50 2,99 1,83 3,48 0,54 99,50 > > > > avg-cpu: %user %nice %system %iowait %steal %idle > > 0,00 0,00 3,03 28,90 0,00 68,07 > > > > Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz > avgqu-sz await r_await w_await svctm %util > > sda 0,00 544,00 278,00 1095,00 7848,00 66124,00 > 107,75 5,31 3,87 1,49 4,47 0,72 99,10 > > > > avg-cpu: %user %nice %system %iowait %steal %idle > > 0,00 0,00 3,03 29,32 0,00 67,65 > > > > Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz > avgqu-sz await r_await w_await svctm %util > > sda 0,00 464,00 229,00 1172,00 6588,00 72384,00 > 112,74 5,44 3,88 1,67 4,31 0,71 99,50 > > > > > > > > > > and this is our Problem. Anyone know why our Storage recive that much of > Precesses? > > > > Thanks in advance > > > _______________________________________________ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/YENR6R4ESX3JCOS7DYA354EOPNL6WGUN/ > > > _______________________________________________ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/VU3OMW456MUM2SCWEERGQBJIPCVCB57N/ >
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