Ritmikdans Gençlik Ve Spor Kulübü Derneği

Ritmikdans Gençlik Ve Spor Kulübü Derneği
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SSD are Intel DC S3700 200gb

cmbg78 comments on My VSAN Nightmare

canada goose cheap Canada Goose outlet canada Do not plan on switching your policy to FTT=0 if this happens again! You will literally force the system to delete mirror copies and create a situation where every single VM is unprotected. This will not only put you uk canada goose outlet at risk but it will cause even more rebuilds to occur when you bring the host back online. canada canada goose clearance goose outlet canada

canada goose outlet online uk Just a comment to note, not all of your VMs were rebuilt when you had your incident. In a 3 node configuration, your mirrors are distributed in such a way that probably around 66% of your VMs entered a state where they were unprotected when the host disappeared. This means only 66% of the objects would need to be rebuilt. canada goose outlet online uk

canada goose outlet parka Also, not sure if canada goose black friday sale VMware mentioned this on your call, canada goose coats but canada goose store I pretty sure you could have just moved the disks from the failed hosts into one of the empty hosts, performed a rescan or reboot, and the drives would have come back online in the cluster. In my testing I would move drives uk canada goose from one server to another and boot the host and watch VSAN initialize and the disks would come online. SSD are Intel DC S3700 200gb, and HDD are Western Digital WD2000FYYZ. We did find during the course of the call that the magnetic drives aren on the HCL, but other 7200rpm SATA 2tb disks are so it unlikely that was the cause. We ordered replacement magnetic disks that are in the HCL just in case canada goose outlet parka

canada Canada Goose online goose outlet online VSAN is dedicated to the 2x 10gbe NICs in all machines, standard switch since there is no other traffic run across that dedicated (physically separate) network. canada goose outlet online

canada goose outlet in Canada Goose sale usa We used the default policy on a handful of machines but most were set to policies we had created to increase the of stripes, as our testing showed this helped performance quite a but we had “2 stripe, 1 FTT”, “3 stripe, 1 FTT”, “4 stripe, 1 FTT” and “6 stripe, 1 FTT” policies in addition to the built in default of “1 stripe, 1 FTT” and machines we spread somewhat evenly across the policies (just depends on their IO needs). canada goose outlet in usa

canada goose outlet canada goose outlet reviews Regarding 66% of the VM needing rebuilt, I would have loved that but unfortunately it was not the case only 5 of the 77 VM were lucky enough to have their data on only 2 of the machines. Strangely, these VM still show “absent” (but no reconfiguring) for the stripes that should exist on the now missing machine, but we deal with that on Monday they are running fine. It also worth noting that these 5 VM were a random sample of policies (from 2 stripe to 6 stripe) so it not canadian goose jacket like a particular policy setting helped them. canada goose outlet reviews

canada goose outlet uk sale Regarding moving the drives to another machine, since the impacted drives had been “off” for 9 hours when we would have been able to make the move to another machine, and that time exceeds the 60 canada goose coats on sale minute “safety” window that VSAN gives Canada Goose Online disks before it assumes Canada Goose Outlet they are totally out of sync, moving the drives with their data untouched would have caused a full data migration like we Canada Goose Jackets saw. performance? All IO lands on SSD, you should always leave your stripe = 1 canada goose uk shop unless you are seeing your write buffers consistently peg at 100% and stay there long enough to cause a latency issue. VSAN observer will allow you to see the state of the buffers. canada goose outlet uk sale

goose outlet canada Why not spread all of the disk groups across all 5 hosts (or even 4)? It sounds like you have some spare disks (you added them to one of your nodes). If you increase the total number of 2TB HDDs to 20, you can put 4 per host. The only gotcha here is if you were to completely fill 20TB (FTT=1) you would only have canada goose clearance sale around 5% of SSD for cache but this would still be fine depending on your workload. You could always move to larger SSDs or buy 4 more http://www.canadagoosesalesus.com up front and create 2 disk groups to start across all 5 hosts. goose outlet canada

canada goose outlet toronto factory Why 5 hosts? canada goose uk black friday Fewer Canada Goose Coats On Sale objects to rebuild during a failure due to greater distribution. canada goose outlet toronto factory

canada goose outlet store uk Have you run VSAN observer canada goose to see if you actually need to mess with striping policies? Keep in mind load testing via IOmeter doesn always represent real world workloads and under high load situations you always see a performance boost doing things like increasing stripes but in reality you might not need to do this. canada goose outlet store uk

canada goose factory canada goose factory sale outlet How do you have the 10GbE links configured? Load balancing policy? What does the upstream switch connectivity look like? 1 switch or two? How do they connect to each other? I curious because it may have created a bottleneck canada goose factory outlet.

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