VMware Cloud Community
dborgill
Enthusiast
Enthusiast
‎09-12-2008 09:52 AM

Datastore sizes keep changing

So we have a datastore that is 1.43 Terabytes. We grew it by 100 gig and then rescaned our HBAs. It showed 106 gig free. Then a few hours later, it shows the old size of 6 gig free. If we rescan the VMFS, it shows 106 gig free agian in VC but keeps reverting. Any ideas?

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3 Replies
weinstein5
Immortal
Immortal
‎09-12-2008 09:58 AM

I would restart the hostd process by running the command service mgmt-vmware restart form the Service Console as root - this will resynch the communication with the VMware Virtual Center service -

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dborgill
Enthusiast
Enthusiast
‎09-12-2008 12:52 PM

We have 15 hosts in a cluster... it's happening on all of them. Restart on all??

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mike_laspina
Champion
Champion
‎09-12-2008 08:46 PM

How did you grow the datastore?

Did you grow the LUN on a SAN or Raid array directly because that would not be supported.

1.4 TB is too large for a single LUN unless you have very large vmdk's.

When more that 15-20 VMs run on a single LUN SCSI reservation conflicts can occur more frequenlty and would cause poor performance.

http://blog.laspina.ca/ vExpert 2009
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