Infrastructure at your Service
Running SQL Server everywhere is not a dream anymore!Ā Microsoft has just announced the first release ofĀ SQL Server CTP1 on Linux today! But that’s not all! SQL Server Vnext is also available on Windows, Mac (via Docker), on aĀ physical machine, virtual machineĀ and on a dockerĀ container as wellĀ … So everywhere you want! Enjoy! By David Barbarin
Following my last blog post about OSWatcher, I will present in this one OSWatcher Black Box Analyzer (OSWBBA), which is the tool that you can use to display graphically the data collected by OSWBB. This tool is a Java utility and exists since OSWatcher version 4.0.0. It permits to create graphs and complete HTML reports containing collected OS statistics. Ā OSWBBA require no installation. It is embedded in the OSWatcher home directory. To start the…
In this post, I will present a usefull and easy-to-use Oracle tool : OSWatcher. What is it ? OSWatcher Black Box (OSWBB), for its full name, is a free Oracle Tool which will help you to diagnose performance issues on the OS side. Of course, it will not solve the issue for you, but it gives a system health state at a given moment. OSWBB is multi-platforms supported (AIX, Solaris, HP-UX, Linux and Windows) and…
In the last posts in this little series we looked at how to get a ZFS file system up and running on a CentOS 7 host and how snapshots and clones can be used to simply processes such as testing and cloning PostgreSQL instances. In this post we’ll look at another feature of zfs: Compression.
In the last post we looked at how to get a ZFS file system up and running on a CentOS 7 host and how to enable the auto mount of the ZFS file systems. In this post we’ll look at two of the features ZFS provides: Snapshots and clones.
ZFS for Solaris is around for several years now (since 2015). But there is also a project called OpenZFS which makes ZFS available on other operating systems. For Linux the announcement for ZFS being production ready was back in 2013. So why not run PostgreSQL on it? ZFS provides many cool features including compression, snapshots and build in volume management. Lets give it a try and do an initial setup. More details will follow in…
By William Sescu Have your ever faced such a situation. You have usernames in your /etc/passwd file with more than 8 characters. This is no problem for Linux at all, usernames may be up to 32 characters long, only your ps output might look a little scrambled. It shows you the uid instead of the username like in the following example: $ id uid=20001(longuser01) gid=10002(oinstall) groups=10002(oinstall) $ sleep 1000000 & $ ps -ef | grep…
By William Sescu A filesystem resize can be done in several ways, online, offline, with LVM2 or without LVM2. Ā However, this blog will describe how to do an online resize of ext3/ext4 filesystems where a virtual disk (vmdk) is online added to a VMware Redhat guest OS. So letās start with the online filesystem resize of ext3/4 filesystems on the Redhat guest OS. Ā A new virutal disk (preferably an eagerd zero thick on VM running…
In this article we’ll going to explore on how to extend a partition which resides in a Logical Volume. LVM (Logical Volume Manager) is a great tool for managing your storage devices on a Linux host. Lets start with some vocabulary. In the order of the lowest layer (hard disks) towards the highest layer (the file system): Your hard disks cabled in the waiter or in a SAN Physical Volume: these are the hard disks,…
Ausgangslage Ein Kunde hat mit kĆ¼rzlich danach gefragt, wie ich den Output eines Scripts auf einer Linuxplattform per Mail sauber formatiert versenden kann. Als Beispiel nehmen wir folgendes: ____________________________________________________________________________________________________________________ File System free space on fed22v1.localdomain ____________________________________________________________________________________________________________________ | | | Mb-Total Mb-Free 0% 20% 40% 60% 80% 100% | | / : 17918 16263 #####—-+———+———+———+———+ 10% | | /boot : 476 326 #############——+———+———+———+ 27% | | /dev : 479 479 +——–+———+———+———+———+ 0% | | /dev/shm :…
