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SMB / Copy speed on esxi SLOW


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ok, some more info

 

i have attached my old ssd disk with vmware version installed :VMware-ESXi-6.5.0-OS-Release-4564106-HPE-650.9.6.0.28-Nov2016

there was already a vmware running on it with xpe 5.2 , i removed all extra disks, so i have no rdm files or whatever

booted up 5.2 , created a a new share, from the disk directly from datastore

started copying huge files over SMB, in total about 50 GB, started to copy from local laptop to synology @ speed 110 MB/sec, after a minute it drops and eventally fails/crashes

 

tried ftp now, transferring is stable over ftp, but the speed is like constant 30 mb, cant go any faster, maybe an ftp limitation ?

 

now i am updating the esxi build to : VMware-ESXi-6.5.0-Update1-5969303-HPE-650.U1.10.1.0.14-Jul2017

 

result, same issue :(

Edited by NoFate
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that sounds really strange.

 

so lets check on differences we have to my setup:

- I am running esxi 6.0 (due to better usb 3 support for external harddisks)

- I have 3 NICS (2 Intel + 1 Realtek)

- On VMWare I have created 4 virtual NICS for xpe (3 in bond + 1 single as backup connectivity)

- For each RDM disk I have a scsi controller

 

SMB speed without issues > 100 MB/sec

SFTP speed without issues > 95 MB/sec in total

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ok,

 

dont think its a esxi version issue

i only have 1 nic on my hp mciroserver gen 8 /  asrock j3150

scsi is out, since i dont use rdm, i created a hard disk directly on the ssd datastore where also esxi was installed

 

but today i tested it on my work, we have here a proliant dl380 gen 9 , exsi 6.5 

i did  the same setup, quicly created a vmware for 5.2 , all steps are the same , followed this guide untill step 4

 

result, no issue on smb copy speed!!! so it must be the hardware on my hp microserver gen 8 or my asrock mainboard, this is going to be difficult....

 

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sounds like but still wondering how the hardware could affect the transfers to even stop entirely.

it might slow down but should not stop entirely due to hardware.

 

could you run a test locally with smbclient/sftp without using the nic?

not sure how you could do this just wondering if its nic related

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ok, just started clean on a new HP gen 8 microserver => hp part => F9A40A => https://www.hpe.com/h20195/v2/GetPDF.aspx/c04123182.pdf

setup bios to ahci support, dont want to use smart array

inserted 1 ssd disk

installed clean esxi 6.5 on that ssd , used latest build : VMware-ESXi-6.5.0-Update1-5969303-HPE-650.U1.10.1.0.14-Jul2017

created a new host with synology 5.2 to test, see screenshot of the config :

 https://www.dropbox.com/s/54toxj4gfn7ya5b/settings.JPG?dl=0 & https://www.dropbox.com/s/xri734f6kwhmsp7/settings2.JPG?dl=0

created 1  volume , 1 share ... , nothing else

test 1

start copying ... bam ... smb copy transfer slow, created a video of it, so you can see whats actually happening : 

video here = https://www.dropbox.com/s/81ocyt1d2vhbigk/syn5-1.avi?dl=0 (

just coping over network 2 iso files, it starts happening from 25% ...it gets worse and worse, eventually stopped filming, because it never finishes... (see end of movie)

test 2

you see 1 iso file 6 gb was succesful, 

rebooted synology first, whent into "file station" from synology itself, just started copying that iso file to another folder on the SAME share , bam, same issue :smile:

video here = https://www.dropbox.com/s/1cpmqjoxdx60a5w/syn5-2.avi?dl=0

 

this can exclude network / laptop issues ...

really frustating :smile: and above configuartion is pretty straight forward ... nothing fancy

 

- same identical test when running bare metal ... no issues

- same identical test when running esxi standard on a asrock mainboard n3150 , same issue , so we can exclude HP hardware , i used 6.0 there , this version : ESXi-6.0.0-20160804001-standard-customized

so we can exclude 6.0 vs 6.5 ...

 

i dont know what to test anymore... :smile:

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kind of expected based on all your testing with different setups. would be interesting to see if another hypervisor would show the same. amybe its a esxi issue related to your hardware. but not sure. so either run it baremetal or live with this issue right?

 

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as I already mentioned earlier in this post:

https://homeservershow.com/forums/topic/11872-esxi-65-b120i-hpvsa-hp-microserver-gen8-low-performance/

https://communities.vmware.com/thread/547372

https://seiler.it/solving-performance-issues-with-esxi-6-gen8/

 

I run ESX6 with scsi-hpvsa-5.5.0-88 without issues. Before downgrade of the driver, I had also very poor troughput.

Give it a try

 

 

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