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JetStress 2013 failed

Posted on 2016-10-19
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Last Modified: 2016-10-25
Hi Experts,

I have done a test for my EXCH2013 installation.
But this test failed.
See the picture.

What does the error mean ?
JetStress2013-error.JPG
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Question by:Eprs_Admin
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12 Comments
 
LVL 117

Expert Comment

by:Andrew Hancock (VMware vExpert / EE MVE)
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Datastore is too slow!

you have high read and write latencies.
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Author Comment

by:Eprs_Admin
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ok but how can it be ?
It is a brand new system. from NUTANIX.
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LVL 117

Expert Comment

by:Andrew Hancock (VMware vExpert / EE MVE)
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That's what the test states!

and you asked what does it mean. that's what it means.
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Author Comment

by:Eprs_Admin
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ok I will also check the other nodes and VMs
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Author Comment

by:Eprs_Admin
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all nodes have the same issue, tested with one DB or 2 DBs.
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LVL 117

Expert Comment

by:Andrew Hancock (VMware vExpert / EE MVE)
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so despite the test, is service okay and performance fine with end users ?
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Author Comment

by:Eprs_Admin
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The support team told me to create one VMDK for each DB and LOG.
Do you agree ?

I did the test just with one DB and one LOG, each on an extra VMDK.
The test was successful.
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Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE) earned 500 total points
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A virtual machine disk for database, and a virtual machine disk for logs, is the general best practice recommendation for Exchange.

So I would concur and agree.
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Author Comment

by:Eprs_Admin
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ok tomorrow I create all the disks and test again with 3 DBs
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Author Comment

by:Eprs_Admin
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Which DISK mode is better for the VMDKs ?

Masterboot Record or GPT ?
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LVL 117

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 500 total points
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that depends on the size of disk you are creating MBT only supports up to 2TB

GPT up to 64TB.

So if you think you'll every need to expand above 2TB, create them as GPT, otherwise MBR ot GPT
1
 

Author Closing Comment

by:Eprs_Admin
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I created now for each DB location a seperate disk. And for each LOG location I also created a seperate disk.
I used for all GPT table.
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