Make Samba Go Faster
After installing a wired gigabit network in my house I tested the performance in the network using shares (Windows – samba installed centos 7). I got around 500-600MBit/sec in read speeds and about 600-700MBit/sec in write speeds. But why ?
After looking at the samba configuration file I saw …Read More
Linux RAID Mdadm Cheat Sheet
Mdadm is the modern tool most Linux distributions use these days to manage software RAID arrays; in the past raidtools was the tool we have used for this. This cheat sheet will show the most common usages of mdadm to manage software raid arrays; it assumes you …Read More
Using grep to find string in files
How many times I had to search for something, let’s say my mac address, to change it in all files under /etc ? I couldn’t remebmer, different distros – different files, anyway, that’s an example, there are many out there, like searching log files, …Read More
Now that SSDs have moved into the realm of affordability there’s little reason not to use one for your next PC if you’re not already using one. But Linux as with Windows has spent decades being tuned for spinning platter drives and while performance is noticeably increased when using an …Read More
What is TRIM?
On hard disks, with spinning magnetic platters, you don’t care if a particular sector is being used by the operating system or not. If you want to use it again, just ask the controller to write into it, and the controller will just overwrite whatever was in that …Read More
I’ve got a small home server with a software RAID-5 for storing my files. It also runs a few virtual machines and acts as a NAT router for internet access. Nothing expensive, just some Frankensteinian patchwork built from old hardware left over when I upgraded my workstation. Nevertheless, I granted …Read More
Want to diagnose corrupt disk issues on a server? Want to find out why you are getting “disk full” messages on screen? Want to learn how to solve full/corrupt and failed disk issues. Try these eight tips to diagnose a Linux and Unix server hard disk drive problems.
#1 – Error: …Read More