These days I had to troubleshoot poor VMware vSphere SAN transport mode performance during backup with Veeam. Before SAN mode, NDB transport mode was used. NBD outperformed SAN mode totally!
ESXi storage connection problems after installing a new array
I was troubleshooting storage related problems at a customer site for some time. We run into massive ESXi storage connection problems after installing a new array. Interestingly enough problems occurred on already existing storage a few hours after new array was installed. Because searching for root cause took some time, I thought it is worth to share.
New in 3PAR SSMC 3.6: Topology Insight
A new – and badly documented – feature in StoreServ Management Console 3.6 is Topology Insights. Sounds first like the probably known Maps. But Topology View shows an end-to-end view: VM <–> VMDK <–> Datastore <–> Host <–> Virtual Volume <–> System. Enriched with performance-information! This short post is about this feature and how to get it.
3PAR – no connection to quorum witness
Recently I had problems to connect a 3PAR system to a quorum appliance. Quorum is needed in a Peer Persistence configuration. The system had a connection to the quorum. After HPE support did replace a node, connection could not be established any more. Command showcropy -qw shows error “below min safe num QAs” and other errors talking about QAs. In SSMC quorum was stated as […]
Create PSP rule for HPE 3PAR
There are a few best practices when implementing a 3PAR into a vSphere environment. One of these is the creation of a custom PSP-rule. With this set, all 3PAR volumes are automatically configured according to best practices when they get mounted. In this post I will show ways to create this rule. [Update] Because HPE Primera uses same vendor and model description as 3PAR, the […]
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