How To: High Availability with Aruba 2930F – VSF

Considering recent posts on IRF, there was a need to get some availability with the more cost effective switches from the Aruba / ProCurve world. I did some research on that and luckily there are more than one option today with this platform – at least the 5400s (…) and in my case 2930s support this by default.

Considering redundancy you basically consider two types of high availability and these cover Layer 2 availability, traditionally suited with link aggregation which conventionally does not span several chassis, and Layer 3 availability for a redundant default gateway service.

In a traditional design, then with a couple of switches (at least four), you configure VRRP for L3 redundant default gateway service, LACP – link aggregation groups for L2 Continue reading

How To: IRF Caveats on FF5700 Flex Fabric

Some time ago, I posted on the configuration of an IRF independent resilient fabric with the HPE Flex Fabric FF5700 datacenter switches. During the operation some things arose to my attention which either have been corrected or perhaps not necessarily clear from the first place.

1.) Activate MAD

There needs to be a mechanism to detect multiple actives. This could be considered something like a quorum for the switch-cluster, intended to prohibit split brains. In my case I preferred to do so with LACP. This brings MAD (Multiple Active Detection) to the layer two and is rather simple. It should be configured on an appropriate Bridge Aggregation Group – resulting in an configuration like:

interface Bridge-Aggregation1
description DOWNLINK_SOMESTRANGESWITCH_WITH_MAD_ENABLED_ON_THE_SAME_LAG
port link-type trunk
port trunk permit vlan all
link-aggregation mode dynamic
mad enable

so specifically pay attention to the last command: Continue reading

Building HP-VSA virtualized storage on VMWare

Konkret sieht die Installation der Software zur Storage Virtualisierung wie folgt aus:

Ich installiere zuerst auf zwei Hosts vmWare vSphere 5.5 und lizenziere diese mit Enterprise Plus. Danach installiere ich einen vCenter Server – oder nehme denjenigen, der in meiner Umgebung zur Verfügung steht. Die VMWare Installation lasse ich an dieser Stelle außen vor – zu berücksichtigende Konfigurationen oder Ausstattungen folgen später im Thread.

Drittens installiere ich die VSA Appliances mit dem entsprechenden Installer. Auch hier fasse ich mich recht kurz, da das zuvor schon gepostet wurde.

VSAInstallationProgress3

Hierbei sind im Wesentlichen drei Dinge zu beachten:

Continue reading