Cluster of VSANS without switch

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  Town of reading is 100% on the very site where the virtual computer. In other words, the virtual machine is always reading in the same place and not cross the link between the sites.

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• Virtual machines deployed on VSAN without selected with THICK disk storage policy

  Hello

  We had an admin build 50 VMs on our data VSAN store but did not choose the VSAN storage policy while he got the default which allows you to have the THICKNESS of the disks provisioned

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  Yes - I have to agree with Duncan. I don't think that there is a way to return/reduce the size.

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  Try it with a VM - see if it works.

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• Path Design... without switch and blade

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• 6 host Cluster VSAN - I want to change the IP vmkernel VSAN

  Hello

  as the title says, I have 6 cluster host VSANS 6.2 (with some VMS on the store of data VSAN, off right now). What is the best method to change the addresses IP of VSAN vmkernel, without loss of data...

  Someone did he do such a thing? The last byte will change slightly to the decline in the number... None VLAN / subnet etc. changes... I have just change the VSAN vmkernel and change the last octet...

  See you soon

  Paul.

  I re-IPed hosts and their IP of vmk corresponding VSAN in maintenance mode as you describe. With all that in maintenance mode, you can just go and change it. I don't think that there is no danger of data loss. If you make a mistake and all start, it would detect split partitions network or other network through the assessment of health problems and you would have a data store does not work until you fix the network problems.

• Battle of VSAN (2 node with node witness Cluster) cannot write to VSAN

  I'm having problems with my Cluster active VSAN and can't seem to write in the data store or migrate a virtual machine to download whatever it is him. When I try a vMotion VM over the VSAN DS I get an error "file impossible creation a full operation, an unknown error occurred."

  Here is my layout,

  Two Clusters with the node of witness, one with 2 nodes

  Each host has 2 discs with a Cache and running as FLASH capacity and disk HARD hybrid Type. Field of the fault, I have a witness preferred and secondary each host is divided.

  Here are the best, I got a work around, if I change the host of fd perfered and when updating the domain fault I can during this brief moment write to the data store. That's how I'm migration of VMs for the moment.

  Any suggestions?

  Thank you

  VSAN Checkup shows that everything works well? My guess is that your 2 hosts have problems with communication with the node of witness or vice versa.

  Try to modify the VSAN storage policy to enable ForceProvisioning as a test, if it works, the problem is probably problem of config/route network communicates with the witness.

• Drivers Intel P3700 for VSANS?

  I worked with our VMWare team to design a VSAN out and it included some Intel P3700 PCIe cards like the layer flash supported by about 1.2 TB of Seagate sas disks 10 k for storage.  Unfortunately, even of the P3700 disappeared not on the HCL, and I am currently "chasing my tail" with latency, and i/o pending.  I opened a SR, but recommended for the H730 drivers do not seem to do anything.  And I'm fairly certain that's not the issue (deactivation does not seem to be a problem).  I understand that the P3700 didn't HCL yet, but it is still ongoing and so many white papers were written with this card as part of the architecture.

  It's all running VMWare 6. 0 b (VMware ESXi 6.0.0 build 2494585 on hosts)

  Material:

  -From r630 Dell (30)

  -2 x Intel P3700 400 GB Flash cards (driver intel-nvme - 1.0e.1.1 - 1OEM.550.0.0.1391871.x86_64.vib)

  -10 x 1.2 TB SAS of Seagate 10 k disks

  -H730 Dell RAID controller in HBA mode with cache is disabled, etc. (drivers for this were something to worry about, but since I assume that the first writings go directly to PCIe cards, I don't think that's the question long - firmware 25.3.0.0016 pilot 6.606.12.00)

  -Intel X 710 with DAC 2 x 10 Gb connections

  -4 x Juniper QFX5100 10 GB switches (15 r630 by 2 switches, scaling up to 30 servers in 2 past later)

  
  

  SAN traffic exceeds 2 uplink (with uplink 1 standby), everything else is plus 1 uplink (with uplink 2 as before)-working on a plan to spend LACP, but it is still under construction

  
  

  The current workload is very low.  It is only about 6 Production VM running on that cluster to the repositories of the project and kicking the tires, with the idea that 500-1000 VM will be launched upward in the coming months.  For the majority of virtual machines, the performance is not essential, but some of the problems I see currently are a bit a showstopper.

  
  

  Problems:

  If I run "bonnie ++ u root" on a virtual machine single, I can see the latency time to go up to 65, 000ms (Yes, really 65 k ms) and the virtual machine is basically responding (100% iowait and very rarely is able to write i/o because of the huge latency).  The write buffer is never very full during this period (stuck at 30% and deactivation does not start even during the race.)  Similar issues occur ATTO Disk Benchmark running on a windows system with a disk queue high (4 seems to be well, 10 kills of the VM)

  
  

  I can get very high write speeds (500 - 800 MB/s or more), but as soon as the latency time leapt to a few 100 ms, it's all downhill.

  
  

  Even with a fairly simple recording VM with all our guests directed to these, I get occasional spikes of latency (1400ms +, with an average of 15ms, which seems high even).  This box just works a lot of entries to logstash and a hint of elasticsearch with occasional when bed kibana someone shows something.

  Y at - it no rider special I read somewhere for the P3700 Intel?  Another thing that I really should look into?  I'm tired of chasing my tail and want to start the actual load of the migration to this new cluster.  I tried RAID0 on a small cluster of 4 boxes, but that wasn't much better and is much more boring.

  I use the 1.6 and 2.0 TB P3700 cards in my VSAN without problem. I have a similar setup, except using r730xd, the same with the same firmware + drivers raid card, also on 6. 0b. When I originally put in place, I could see peaks of latency high 200-400 + ms, it was resolved by updating the drivers of NETWORK card for me. I use a NIC (Intel X 540 - AT2), different, but the firmware upgrade + the driver for my NIC brings my latency ~ 3ms avg and blip occasional peak at ~ 15ms. Probably worth to update any firmware on your X 710 and use the appropriate driver on VMWare HCL VMware Compatibility Guide: search for i/o device

  I've also seen really bad latency problems out of network configuration problem. In our case that we had a link to 1 GB failover in case our 10 GB failed, but instead things are started to be load-balanced and performance/latency was very poor until we noticed that the 1 GB has been fully utilized.

  Also try to use the Inbox NVME driver, I ran on it without problem before Intel released the driver 1.1 you use now. In my limited testing, Intel drivers are slightly faster performance but nothing majorly different.

• VLAN in PC5548 - is required L3 switch?

  Hello fellow networkers,

  We have 4 PC s 5348 and several 54xx L2 switches used for desktop computers, printers, wireless APs, servers, etc. - without reflection or reason as to which is connected to a particular switch - has increased over time as many companies.

  Due to the audit of security, we must now separate the data traffic. desktop computers, wireless etc. and implementing local area networks virtual.

  We have 2 PC 5548 s recently bought to vlan servers with a cluster connection cascading other switches that will be take place computers in office, warehouse, printers etc. We were told the 5548 s also support features of L3, but reading of the record, it appears that they have no L3 routing function

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