grelbar.net

stories from the trenches.. vmware, san, backups and general hacking

25 Oct
2020

VCSA 7 u1 update woes

“Don’t be hasty master Meriadoc” I was being hasty while updating my own lab vCenter Appliance to 7.0 U1a patch. I started the process from the VCSA gui as usual, but the download was interrupted at 3% (perhaps from a fault of my own), leaving the install in a messed up state. Refreshing the gui […]

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7 May
2020

VSS to DVS – a tale

Recently, me and a colleague were working on upgrading parts of a VMWare infrastructure from a mostly 1 Gbps network configuration to a mostly 10 Gbps network configuration as well as adding a 10G vMotion network. Cabling was already done at this point, but I’ll list the configuration below for posterity: 4 hosts Each host […]

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16 May
2018

Lenovo Thinkpad X270 – Dipping my toes in

The battery life of my previous work laptop, the T460s (first impressions -review here) had become abysmal after about two years of use. I tried to find a solution, but since the batteries are non-replaceable without surgical procedures, the only option would have been to get something like an external battery to keep using it. […]

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30 Mar
2018

Sierra Wireless EM7455 issues on Win 10 Fall 2017 and Workaround

As a somewhat ambivalent user of a Lenovo Thinkpad T460s laptop loaded with Windows 10 Enterprise and latest updates. After the Fall 2017 Creators update from Microsoft, the built in 4G Modem, a Sierra Wireless EM7455 stopped working. But not in an obvious way. You could still connect the 4G modem, and you’d have “bars” […]

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19 May
2017

Patching ScaleIO 2.0 VMware Hosts

Recently did an ESXi patch run, along with some BIOS and firmware updates on a ScaleIO 2.x environment (more precisely 2.0.5014.0). The environment consists of some Dell PowerEdge servers, some of which are ESXi 6.0 build 3380124, some are Linux based, non-virtualized hosts. Luckily this environment was ScaleIO 2.x, because this version has a real maintenance […]

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25 Apr
2016

Lenovo Thinkpad T460s First Impressions

I recently switched laptops from the T440s to the T460s. I’ve long been a fan of the Thinkpads, both during the IBM period and the Lenovo reign of late. The T440s was a bit of a mistake in my opinion. Sure it performed as you’d expect, but the mouse was a huge pile of dung, […]

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20 Mar
2016

MicroATX Home Server Build– Part 4

After a longish break, here’s the next installment! So the server has been in production now since last September, and is running very well. After the previous post, this is what’s happened: Installed ESXi 6.0 update 1 + some post u1 patches Installed three VMs: Openbsd 5.8 PF router/firewall machine, Windows Server 2016 Technical Preview […]

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