Menno de Liège

HA Admission Control: Base VM reservation on percentage

Posted on May 18, 2012 by Menno de Liège

When configuring HA Admission Control based on a percentage, do you ever look at the current failover capacity from the vCenter inventory? When you do, it is possible you also noticed that the current failover capacity does not reflect the amount it should be, based on your knowlegde. You are running many VM’s, but still the current failover capacity remains very high. Continue reading →

Posted in Powershell, VMware | Tagged admission, capacity, connect-vi, control, CPU, current, ESX, ESXi, failover, ha, hypervisor, inventory, Memory, percentage, powercli, powergui, powershell, reservation, reservations, script, scripting, shares, vcenter, VMware, vSphere | Leave a comment

Bulk add zones on Brocade FOS using Powershell

Posted on March 2, 2012 by Menno de Liège

In my previous post I presented a script which makes it much faster to add many zones to a Cisco MDS switch with the use of the “single initiator – single target” principle. lately I have been working with some Brocade SAN switches which we will use in the future too. Because of this, I decided to copy my script, edit the script so you have the same feature now for adding zones quickly to the Brocade Fabric OS with the same procedure.

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Posted in Brocade, Powershell, Scripting | Tagged 300, 5100, 5300, 8000, 9000, 9100, 9124, 9134, 9200, add-content, alias, brocade, Cisco, ds-300b, ds300b, Fabric, foreach, fos, initiator, mds, os, Port, powershell, SAN, Switch, target, WWN, zone, zoneadd, zonecreate | Leave a comment

Bulk add zones on Cisco MDS SAN using Powershell

Posted on March 2, 2012 by Menno de Liège

When adding many zones to an existing zoneset, it can be a large amount of work when using the “single initiator – single target” principle. About two years ago, my collegue Jon Klaus http://goo.gl/tliyn created a very cool VBS script for automating a large part of the zoning. I recently re-created the script with Powershell. Inside this post, I will present this Powershell script and explain exactly what it does for you.

First of all, when you successfully connected the hosts and storage array to the Cisco MDS SAN, use the Fabric Manager to create the aliasses inside the VSAN zoneset. Be sure the hosts and storage arrays are connected to the same VSAN on the different Cisco MDS Fabrics. Continue reading →

Posted in Cisco MDS, Powershell, Scripting | Tagged 9000, 9100, 9124, 9134, 9148, 9500, brocade, channel, Cisco, clariion, config, EMC, end, ESX, ESXi, Fabric, fcalias, fibre, front, initiator, inter, ivr, mds, member, microsoft, name, Port, powershell, ps, ps1, routing, SAN, single, sist, Switch, switching, target, terminal, vbs, VMware, VNX, vsan, vSphere, zone, zoning | Leave a comment

Cisco UCS with VNX and vSphere: Booting from SAN

Posted on February 6, 2012 by Menno de Liège

Last week we were installing a new vSphere 5 environment on a Cisco UCS platform with the EMC VNX5300 storage platform for a customer and decided to use the really cool new feature called “Auto Deploy” which makes it possible to use stateless computing and provide the host with a configured image very fast. We also wanted to be sure that one ESXi5 host and the virtual vCenter / Auto Deploy server were not dependent on the PXE boot environment, but still be stateless. In this post, I will show you how easy it is on a Cisco UCS platform to use a boot from SAN environment and stay completely stateless.

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Posted in Cisco UCS, EMC VNX, SAN, Storage, vSphere 5 | Tagged 0, 1, 4, 4.1, 5, add, ALUA, auto, boot, Cisco, clariion, Computing, connectivity, Datastore, deploy, disk.enablenavireg, EMC, end, environment, ESX, esx5, ESXi, esxi5, Fabric, fabrics, from, front, HBA, host, initiator, navisphere, policy, Port, primary, Profile, profiles, pxe, SAN, secondary, Service, single, Stateless, status, Storage, target, UCS, Unified, unisphere, vcenter, vHBA, VMFS, vNIC, VNX, vnx5300, vSphere, WWN, wwpn, zone, zoning | 1 Comment

Cisco UCS Powershell Toolkit: Adding bulk VLAN

Posted on January 20, 2012 by Menno de Liège

When connecting the Cisco UCS Fabric Interconnects to your existing LAN Infrastructure, you need to add the VLAN’s manually due to the fact that UCS does not support VTP (VLAN Trunk Protocol). Inside this blogpost I will specify two basic powershell scripts for adding VLAN’s and connect a VNIC Template to the VLAN’s.

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Posted in Cisco UCS, Powershell | Tagged add-ucsvlan, array, Cisco, comma, Computing, connect-ucs, csv, dimensional, editor, emulator, Fabric, FI, get-credential, id, id's, import-csv, instance, Interconnect, invoke-ucsxml, LAN, library, module, multi, name, native, powergui, powershell, protocol, script, seperated, simulator, System, template, toolkit, trunk, two, UCS, ucslancloud, Unified, vlan, vlan's, vNIC, vtp | Leave a comment

Avamar 6.0.1-65 Bug in adding nodes

Posted on January 13, 2012 by Menno de Liège

This week I was adding Avamar 7.8TB nodes to existing Avamar Data Store Gen 4 Grids and I discovered a bug in adding and starting the new nodes. After adding and starting the nodes, the clients were redirected to the incorrect LAN connection of the new nodes. Something that happened on two different Grids. Inside this post I will explain the problem and provide a solution. Continue reading →

Posted in Avamar | Tagged --addr=, --allow=backup, --clean, --type=storage, 1, 192.168.255, 192.168.255.0, 3, 4, 6, 6.0.1-65, 7.8, 7.8tb, add, ads3, ads4, avamar, avmaint, avtar, balancemin, balancemin=0, balancemin=2, bond, bond0, bond1, bonding, bug, checkpoint, client, clients, config, data, error, eth0, eth1, eth2, eth3, fatal, gen3, gen4, grid, grids, gsan, hfs, hfscheck, if, info, internal, LAN, networkconfig, node, nodedb, nodes, pack, probe, probe.xml, procedure, Service, sp1, start.nodes, Storage, store, Switch, switches, tb, utility, vlan, xml | Leave a comment

Avamar trunking: Avamar on a stick

Posted on January 6, 2012 by Menno de Liège

A nice feature of the Avamar Datastore Generation 4, is that you can use trunks to connect multiple VLAN’s to the same Avamar backup port. When installing a fresh Avamar, you will do this using dpnnetutil, but when you need to add nodes to an existing grid, you do not want to use dpnnetutil anymore to be sure not to impact the existing configuration.
Inside this blog I will explain how easy it is to configure trunking on the Avamar side.

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Posted in Avamar | Tagged -s, 1, 2, 3, 4, 5, 6, active, ADS, avamar, backup, balancing, bond, bond0, bond1, bonding, channel, data, dpnnetutil, drac, eth, eth0, eth1, eth2, eth3, failover, gen, gen4, grid, idrac, ifcfg-bond0, ifcfg-bond1, ifcfg-eth0, ifcfg-eth1, interface, LAN, load, master, network, NIC, onboot, passive, Port, racadm, recovery, reduncancy, routing, setniccfg, slave, stick, store, sub, subinterface, sysconfig, team, teaming, vlan | 1 Comment

VBS Scripting and Robocopy: Moving the userdata

Posted on December 23, 2011 by Menno de Liège

When migrating an existing environment to a complete new environment, you may need to move the groupdata to a new fileserver. Beside the groupdata, you also want to provide service to the end user and migrate the specific userdata to the new location. Like I mentioned before, I do not script that much, but I recently created a VBS script that will use robocopy to migrate userdata to a complete new environment.

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Posted in Microsoft, Scripting | Tagged 1, 2, 2003, 2007, 2008, 2010, account, active, array, autocomplete, basic, column, columns, comma, copy, csv, data, destination, dimensional, directory, documents, domain, e-mail, exchange, explorer, favorites, file, fileserver, filesystemobject, fso, fso.copyfile, fso.fileexists, fso.folderexists, fso.opentextfile, Group, groupdata, home, homedir, homedirectory, internet, loop.if, mail, microsoft, migrate, migrating, move, my, next, nickname, nk2, novell, ntfs, outlook, permissions, Profile, purge, r2, roaming, robocopy, script, scripting, scripts, seperated, Server, shell, source, sp1, then, true, two, username, usernames, vb, vbs, visual, webmail, windows, wscript.shell, wsh, wshshell | Leave a comment

Cisco UCS Uplink Features

Posted on December 19, 2011 by Menno de Liège

When connecting your Cisco UCS blade environment to your existing LAN, the traffic from your blades to the rest of your network, use a predefined path. This means that there is no real load balancing or round robin mechnism from your blades to the LAN. Inside this blogpost I will address and explain the way Cisco UCS causes and handles this.

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Posted in Cisco UCS | Tagged 2, 3, balance, balancing, Blade, blades, border, Cisco, domain, ehv, end-host, enhanced, eth-uplink, even, Extender, external, Fabric, Group, groups, Interconnect, internal, l2, l3, LAN, layer, load, loop, loops, mode, npv, odd, pan, path, pinning, Port, portfast, robin, round, routing, SAN, scope, set, size, slot, spanning, spanning-tree, stp, Switch, switching, telnet, traffic, tree, UCS, uplink, virtualization, virtualizer, vnlink | 2 Comments

Recoverpoint: SANTap splitting can give you a headache

Posted on November 17, 2011 by Menno de Liège

When deciding to implement a Recoverpoint environment, you have to decide which splitter(s) you will use to duplicate and redirect the I/O’s to your replication target, whether this is a local copy or a remote copy. You can use a a host based splitter, an array based splitter or decide to use a SAN based splitter. My guts tell me I want to do the splitting as soon as possible and as close as possible to the replication target, so I would choose splitting at a SAN level.

Inside this blogpost I will explain how SAN based splitting works for Recoverpoint using Cisco MDS SAN environments and explain how complex it could be when you allready have a complex SAN in place.

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Posted in Cisco, Disaster Recovery, EMC, SAN | Tagged 9100, 9200, 9500, addressing, agile, backend, channel, Cisco, copy, cvt, device, disaster, domain, domain-id, dr, EMC, Fabric, FC, fcid, fibre, frontend, host, HP, hp-ux, hpux, id, initiator, ITL, local, LUN, mds, module, Recoverpoint, recovery, remote, rpa, SAN, santap, splitter, splitting, SSM, Switch, target, unix, vi, vsan, WWN | Leave a comment

Menno de Liège

HA Admission Control: Base VM reservation on percentage

Bulk add zones on Brocade FOS using Powershell

Bulk add zones on Cisco MDS SAN using Powershell

Cisco UCS with VNX and vSphere: Booting from SAN

Cisco UCS Powershell Toolkit: Adding bulk VLAN

Avamar 6.0.1-65 Bug in adding nodes

Avamar trunking: Avamar on a stick

Recoverpoint: SANTap splitting can give you a headache

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