It has been about two years since I have visited a specific rack closet, and took pictures. Several days ago I have visited the same rack closet, and took some new pictures. You can tell time went by 😉
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A common tool in use when needing a console access to a remote server is the IPMI. There are multiple names and implementations – HPE’s ILO, Dell’s iDrac, Lenovo IMM, and so on. This interface can be configured – both network settings and user access credentials, when having a BIOS access, however – a question…
This post will offer several tips and tricks for wiring cables into new rack closets. It uses pictures as a demonstration of what to do and what not to do. It is based on a job I have taken part in with several other companies, moving the server farm to a new location. This job…
In my post just below, I have defined a set of tests to verify the possible cause of the tg3 problem. It had nothing to do with autoneg, and was fixed in RHEL 4 Update 4. That 32bit installer works correctly. One last thing to test – rebuild the installer initrd, and replace tg3 module…
I have been introduced to a very cool software/hardware combination yesterday. It has been, without exaggerating, one of the coolest things I have seen in a while. As you may know, x86 has an issue with scaling up. It’s that x86 architectures and price don’t justify scaling up to tenths and hundreds of CPUs. The…
I will discuss the issue of placing a Linux machine as a router, and some special cases where things might play a bit different. The most common scenario is of placing the Linux as some sort of PPP or DHCP-via-cables router. It might look like this: In this picture, the Linux machine actually recieves, via…
While searching the web for how to perform PCI-Passthrough on XenServers, we mostly get info about previous versions. Since I have just completed setting up PCI-Passthrough on XenServer version 6. 5 (with recent update 8, just to give you some notion of the exact time frame), I am sharing it here. Hardware: Cisco UCS blades,…
