Solaris Troubleshooting NFS : error ‘cp: cannot create : Permission denied’
When trying to copy a file across an NFS mount point the error “Permission denied‘ is reported.
Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base
BAD MAGIC NUMBER MAGIC NUMBER WRONG – restore primary superblock with fsck
Before going to actual error we should look at the basic components of the UFS filesystem. There are four components of file system boot block : The boot block stores information used to boot the system. super-block : Much of the filesystems internal information( like data...
Migrating NIS Server from Solaris10 to RHEL6
Case Study : The Company igurkul.com wants to move it’s entire platform environment from Solaris to Linux. in this post , we will be discussing about the procedure to migrate the existing NIS server from Solaris 10 to RHEL6. Please note that we will be migrating...
VxVM : Recovering the mirrored volume with both sides of mirror components ( plexes) had Error State
This post is continuation to the Yogesh’s recent post ” Recovering Disabled Disk groups” ( which is talking about recovering Disk group which has no volume issues at low level but just failed to initiate during the start up), and also related to the post “Recovering...
Unix Admin Reference – Veritas Volume Manager Volume States and Plex States
While Troubleshooting Veritas Volume Manager, Understanding volume and plex states is key part to investigate about the current issue related to the Veritas Volumes. In this post, I made little effort to write all the possible Volume and Plex states so that it can...
VXVM 6.1 – How to Use Ordered options with vxassist command
If the -o ordered option is specified when creating a volume, vxassist uses the specified storage in the following order: 1. Concatenate disks. 2. Form columns. 3. Form mirrors. For example, the following command creates a mirrored-stripe volume with 3 columns and 2 mirrors on 6...
Solaris 10 : Zone/Container creation
This post explains some of the basic questions and procedures involved in Zone/container creation 1) Where will the Container reside? # mkdir -p /export/zones 2) Configure the Container: Command zonecfg, located in /usr/sbin like all other Zone Commands, is used to configure the Container. The Zone...
Password protecting an Apache directory
Apache is known for being fast, secure & extremely customization. We can modify apache as per our needs & requirements with its various modules & configurations. One such file that is used to modify configurations of the website is ‘.htaccess’ file. .htaccess .htaccess is short for hyper...
Load balancing web server using POUND load balancer
Load balancers are used to improve the performance of infrastructure, whether they are being used to improve performance of a single system by distributing load across various network interfaces or load balancing might be used to distribute load of a web server across several backend servers....
Solaris 10 : Configuring Interprocess communication Parameters
Many system administrators, particularly those managing large database servers, have had difficulty tuning shared memory and semaphore parameters in /etc/system. Often, these difficulties are experienced before starting an application instance. The Solaris 10 Operating System addresses this issue by integrating the System V IPC tunables into...
