Space in use SAN HQ alert 4.2 on volume

I've recently been reconfiguration of EQL (1 PS6100, 1 PS4000) customers.  As part of the cleaning and modernization of the former ESXi environment, virtual machines were vMotioned storage of 4000 to 6100 and the4000 reset, reconfigured and added to the 'new' group began with the PS6100.

The PS6100 is RAID10 and in its own pool of storage, the PS4000 RAID6 and in its own pool of storage.  The PS6100 has a single TB 5.5 thin provisioned volume (total available is 5.75 to), the reconfigured PS4000 has a single 4TB thin volume (total available East of 5.66 to).

About halfway through to storage quick vMotioning of PS4000 to PS6100 VMS, SANHQ began reports 4.2 warnings of space on the volume of same PS61000 if running in Workgroup Manager of space in use for the volume and the pool was only about 2 TB with him remains marked free.  Once the PS4000 has been revamped and its created volume and about 1.1 to migrate back, this volume has begun to take a 4.2 errors as well.

SanHQ reports 4.2 errors, the two volumes now that more than 99% complete, even if the Group Manager shows as much less complete volumes - the PS6100 is about 70% full, the PS4000 only 30% full (volume, pool is only 20% full).

My understanding of thin volumes with VMware is that they grow only represented by how much space has been consumed by the upstream file system (for example, VMware VMFS) and "shrink" only if manually unmap you them (VMware) or run another operating system that automatically cancel the mapping.

That being the case, none of my thin LUN EQL never showed more than 70 percent use of space (maximum) and some never more than 25% maximum, than even San HQ throws 4.2 errors.   Why?

Hello

It is a known issue with SANHQ v3.1.   The next version should exit this month this will resolve this error.  There are several other threads here discuss this issue.  For now, turn off the alerts is best work around.

Kind regards

Don

Tags: Dell Products

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