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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We have one connection via ATM like interface and we have one PPP connection via xDSL (described here), and we want load balancing for this whole party. Following this specific part of lartc.org guide, we’ve managed to get this to work. The idea goes like this (Centos 4.3): 1. Do not state default route for…
I have encountered it on several cases. RedHat Linux ES, by default, uses smp kernel which is limited to eight cores, or two sockets. You find out that your multi-socket hardware, with its 16 (or more…) cores show you only the first eight, both by the simple method of running ‘top‘ and then pressing on…
It wasn’t junk once… This stuff used to be useful, but it has been laying around for a long while now, doing nothing but collect some dust. I have ‘donated’ some stuff to someone who actually wanted it, but neither him nor me can find a use, nowadays, to a monochrome display card with an…
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…
Let’s say you have old shelves of either EMC or NetApp with SAS or SATA disks in them. And let’s say you want to connect them via FC to a Linux machine and have some nice ZFS machine/cluster, or whatever else. There are few things to know, and to attend in order for it to…
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…
