Pocket guide for netapp commands
cloudibee This post contains the list of commands that will be most used and will come handy when managing or monitoring or troubleshooting a Netapp filer. sysconfig -a : shows hardware…
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Perl script for listing VMware Tools status
In your day to day operations as part of managing a virtual VMware datacenter, you may need to gather or perform a particular operation on a cluster alone or a…
OCFS2 cluster – quick setup guide
OCFS2 is a POSIX-compliant shared-disk cluster file system for Linux capable of providing both high performance and high availability. Cluster-aware applications can make use of parallel I/O for higher performance.…
Squid Cache proxy – a quick setup guide
This post gives the steps to quickly setup Squid proxy and make it up and caching in minutes. There are also some tips & tricks on squid. My squid proxy…
vSphere Management App for iPAD
An interesting application to manage your vmware vsphere datacenter … through an Applie iPAD. Pretty interesting .. The app is still in its early stages, but the demo shows great…
Vsphere Tutorial & demo videos
Mike Laverick has done a great job in sharing out the Vmware Vsphere video tutorials, that clearly explains number of vsphere concepts, howto and technologies in details. Worth watching! Watch…
Tuning Netapp snapmirror/snapvault speed
In Netapp, there is a option to set/limit bandwidth of all snapmirror and snapvault transfers. The option can be either system-wide or for a particular transfer. We can tune either…
Solaris LDOMs virtualization : setup guide
Sun Logical Domains or LDoms is a full virtual machine that runs an independent operating system instance and contains virtualized CPU, memory, storage, console, and cryptographic devices. This technology allows…
Netapp performance monitoring : sysstat : Part II
Here are some explanations on the columns of netapp sysstat command. Cache age : The age in minutes of the oldest read-only blocks in the buffer cache. Data in this…
Netapp Simulator – Installation steps
Those who are newly learning Netapp can use Netapp Data OnTap Simulator to get comfortable with Netapp commands. This tool gives you the experience of administering and using a NetApp…
Linux Enterprise Cryptographic Filesystem : ecryptfs
eCryptfs is a stacked cryptographic filesystem embedded within the Linux kernel. Being a stacked filesystem, it can easily encrypt and decrypt the files on your Linux server as they are…
Dynamically detecting new disks in Linux
When you have new LUNs created on the SAN fabric, zoned & mapped it to the server; how can you detect the luns on the linux server online, without rebooting…
rpm package command tips
If you want to find which rpm contains a specific file in your linux system, you can use “rpm -qf” to get the package information. opensuse:~ # rpm -qf /etc/vmware-tools/tools.conf…
Fileop : Filesystem IO benchmarking tool
Iozone Linux filesystem benchmarking tool has another cool utility called “fileop”. This utility does file operation on the filesystem and gives the ops/sec for each operation. This tool will be…
Lustre – cluster filesystem : quick setup guide
The Lustre file system is a distributed high performance cluster filesytem that redefines I/O performance and scalability for large and complex computing environments. This is ideally suited for data-intensive applications…