Category Archives: Storage

Thin Provisioning a LeftHand P4000

While building out a demo environment I had cause to thin-provision already thin-provisioned storage (that might be on a thin-provisioned array. Don’t try this in production!) The issue was a pre-configured LeftHand P4000 appliance providing iSCSI LUNs to nested ESXi … Continue reading

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vSphere vmk ping reply update in 5.1

There is a new KB Article out from VMware discussing a change in how the kernel managed ICMP replies. If you’ll recall some ISCSI vendors needed workarounds for how replies worked in previous releases. The issue was the reply would … Continue reading

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iPod / USB storage driver not installing

I’ve been having a problem with my iPod where it would not load the proper drivers in my Windows7 64-bit desktop. It worked for a long time, then suddenly it didn’t. I found links at apple.com and other places of … Continue reading

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vCenter 5 U1b released (Updated)

[Update] As mentioned in the comments below, the bug shown here was fixed in a previous release (apparently U1) of the vSphere client. The trick seems to be the bug only existed in the client and unlike previous versions the … Continue reading

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Automating your vSphere Demo environment with a vmrun batch file

I was tasked to build a reusable, portable vSphere 5 lab to mimic a production environment. The idea was to use it as a repeatable demo customers can interact with. I built the environment on my 2-year old Lenovo W510 … Continue reading

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Shooting yourself in the foot is bad (Where are my swap files?)

vSphere by default stores vswap files (the files used when your host runs out of physical memory to allocate) with the local machines. However, you can choose (on a per VM or per-host basis) to direct all swap files to … Continue reading

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Extensions of Raw

I’ve seen some docs and data out there that exhibit confusion over the file extension for an RDM file, describing it as .rdm.vmdk or -rdm.vmdk or other variations. A quick ls from a VM with a RDM shows: there is … Continue reading

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Thin Expansion (vSphere5)

Here’s a curious one. The max size of a thin-provisioned VMDK on a VMFS5 datastore is 2TB. If you create a new VMDK you’re allowed to create it at 2048GB/2TB.   However when you go to expand an existing VMDK … Continue reading

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Demo virtual Equallogic PS6000 array available

If you’re a Dell/Equallogic partner you can finally have access to a software version of a PS6000 iSCSI array. This has been available internally at Dell since at least 2009 (the date of the included documentation) but it’s release to … Continue reading

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iSCSI Multipath for Equallogic round 3

I posted a rather cryptic set of commands way back when, followed it with a script from Dell that would setup multipath on vSphere 4.x for you, then followed that with setting up MPIO in the GUI. Now I’m back … Continue reading

Posted in Equallogic, Storage, Virtualization, VMware | 11 Comments