Write the Bootdisk SATADOM latency problem

Hi people,

I have a Supermicro Microcloud Pseudo-lame 8 Server identical blades, each installed with ESXi 5.5 on an edge D150QV Innodisk SATADOM (32 GB), with associated default datastore1 (about 24 GB) that has no virtual machine. A blade is a problem with strange writing with the SATADOM latency, and I wanted to ask if people have seen this behavior before, and if I should be worried about the SATADOM SSD life expectancy.

Currently, I see a 3ms latency of writing on datastore1 quasi-continuite according to viclient, and goes esxtop shows that there are 3 commands/s beating enough regularly to screw with the graph of viclient into thinking there is a continuous 3ms latency of writing. Most of the commands is concentrated in LVAD rather than KMOY. I don't see this behavior in other blades configured identically, which have probably SATADOM from the same manufacturing batch.

and I think I found the problem earlier...

He had a record of vmkdump VMFS on datastore1 with a file in use. Marking this unused file stopped this nonsense. See the forum for more information

https://communities.VMware.com/thread/460089

basically make sure the dump partition is active and mark the inactive dump file.

Tags: VMware

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