Currently viewing the category: "Filesystem"

Create iSCSI Target in OpenFiler

By On 20 October 2011 · 5 Comments

If you have a SAN storage, or a dedicated server to serve as file and storage service to other server, I am suggesting you to use Openfiler. This operating system is specifically built to manage and deliver file-based Network Attached Storage and block-based Storage Area Networking in a single framework.

In this tutorial, I will not [...]

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Linux: The Best and Safest Way to Copy Files

By On 29 September 2011 · Leave a Comment

What is the best and safest way to copy files in Linux machine? In some cases where the directory that I need to copy over is too large with 10000+ files and 50GB+ of total size, I need to transfer the files in the most convenience and safest way. Conditions that I need are:

I [...]

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Linux: Init Script for FSniper

By On 23 September 2011 · 1 Comment

As refer to my previous post on how to install fsniper, we can see that fsniper can be run on daemon mode. We can take this advantages by generate an init script to ease up the stop and start process. By default, you need to kill manually the PID and also start manually using following [...]

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CentOS 5: Converting Ext3 to Ext4

By On 8 August 2011 · 4 Comments

Ext4 (fourth extended file system) is the successor of current widely used Ext3 filesystem in Linux.

Since Ext4 filesystem already in the market, we can fully utilise this and improve IO (input/output) performance. Ext4 is well-known to be good in handling large storage, reduce up to 9 times of file system checking (fsck) time compare [...]

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Increasing Disk Space in CentOS using LVM

By On 13 July 2011 · 2 Comments

LVM (Logical Volume Manager) is a tool in Linux which can help you manage disk drives and partition. Usually it being used in server/computer whereby you can easily re-size the partition, creating snapshots backup, combined all hard disk to be run under one partition and many more.

In this case, I [...]

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Create RAID1 for New Hard Disks via SSH/Online

By On 30 June 2011 · Leave a Comment

Following steps are my way on delivering RAID1 (mirrored disks) via SSH in my production server. What we need is 2 new HDD which having same disk space and already plug into the server. Variables as below:

OS = CentOS 5.6 64bit
/dev/sdb = new hard disk #1
/dev/sdc = new hard disk [...]

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Detect New Files and Send Notification if Suspicious

By On 29 June 2011 · Leave a Comment

This post will required Fsniper installed and running on your box. Please see following post: FSniper – Monitor Newly Created Files in Directory . This is similar to popular paid-version of ConfigServer eXploit Scanner (cxs), which also using inotify functionality which comes since kernel 2.6.13.

I am using Fsniper to [...]

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FSniper – Monitor Newly Created Files in Directory

By On 27 June 2011 · Leave a Comment

Fsniper is a good utility that waits for a file to be changed, then executes a command on that file. Means, whenever newly files created, we can do something with that files while fsniper returning the path and file name. From this, we can manipulate the result to execute another task like sending [...]

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