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ZFS on Nextenta vm, configuration ... slow performance
Posted on 2012-12-20
Hi,
So I configured a Nextenta vm on my ESXi 5.1, it runs on a local SSD of the ESXi.
Added 3 of 4 ssd's in Sharkoon via raw mapping to the vm (4th is not seen, probably esata cable loosened, have to check that).
Created a NFS zraid with these 3 SSD's and put 1 vm on it.
Not what I expected, honestly. Ok, it's a vm (Nextenta) but still disks are mapped directly, memory is not used heavily .... Performance of 1 SSD is faster then this ZFS ZRAID.
Shouldn't I use ISCSI or caching, or logs ...?
Am I missing something?
Please advise.
J.
So I configured a Nextenta vm on my ESXi 5.1, it runs on a local SSD of the ESXi.
Added 3 of 4 ssd's in Sharkoon via raw mapping to the vm (4th is not seen, probably esata cable loosened, have to check that).
Created a NFS zraid with these 3 SSD's and put 1 vm on it.
Not what I expected, honestly. Ok, it's a vm (Nextenta) but still disks are mapped directly, memory is not used heavily .... Performance of 1 SSD is faster then this ZFS ZRAID.
Shouldn't I use ISCSI or caching, or logs ...?
Am I missing something?
Please advise.
J.
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13 Comments
Active 3 days ago
You mentioned some tools to do this (portable ones I think), could you mention them again? I'll then run these and paste the results here.
Active 3 days ago
Btw, does it (ZFS Nextenta) get faster when you use it longer, even without cache configured? Seems to be so ....
Active 3 days ago
Loading nextenta volume with vm's now.
Note: could configuring ISCSI bring improvement versus NFS?
Note: could configuring ISCSI bring improvement versus NFS?
Active today
Napp-it contains Bonnie and DD benchmark tests, which will perform the tests actually on the NAS.
Others include I/O Meter, CrystaldiskMark, HD Tach
Others include I/O Meter, CrystaldiskMark, HD Tach
Active today
iSCSI could be faster than NFS, again benchmark and test, check with Jumbo Frames enabled and disabled.
Active today
if you are going to run Bonnie and DD tests.
what benchmarks do you have for you existing NAS?
what benchmarks do you have for you existing NAS?
Active 3 days ago
I cannot use jumbo frames since not all my devices support it. Afain, I just needed a blackbox fast nas, nothing more, nothing less.
I ll follow the config you made and tested. Don t need or want to spend to much time anymore testing/configuring.
My lsi should arrive soon, I ll order 3 2tb disks and will install solaris with nappit on bare metal then. Can you share your config/help me further configuring then? When finished I hope not to need to touch anymore and focus again on vms/windows no storage anymore.
I ll follow the config you made and tested. Don t need or want to spend to much time anymore testing/configuring.
My lsi should arrive soon, I ll order 3 2tb disks and will install solaris with nappit on bare metal then. Can you share your config/help me further configuring then? When finished I hope not to need to touch anymore and focus again on vms/windows no storage anymore.
Active 3 days ago
Fyi: performance overview OpenIndiana, Solaris & Nexenta: http://blog.b3n.org/2011/12/solaris-11-openindiana-and-nexentastor.html
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