Sysadmin Stories

Short stories on virtualization, clouds and other technologies based on personal experiences and opinions.

Wednesday, February 27, 2013

NetApp SnapMirror traditional volumes to flex volumes

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SnapMirror comes in two flavors: volume snapmirror (VSM) and qtree snapmirror (QSM). One major difference between the two is that VSM can b...
Friday, February 22, 2013

Guest customization - vCloud Director and vSphere

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One nice feature that VMware Tools brings is the possibility to inject and run scripts directly in the virtual machine - be it bash or batc...
Friday, February 15, 2013

PowerCLI - multiple vMotion to prepare host for maintenance

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One of the clusters I work on has been recently upgraded to new servers with 128 MB of RAM. This makes the cluster RAM pool huge compared t...
Thursday, February 7, 2013

vCloud Director storage calculation and allocation

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A couple of days ago, my colleague trying to deploy a new vApp in an Organization vDC hit the storage limit. Because on paper he should hav...
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