‘cksum’: Print CRC checksum and byte counts
‘cksum’ computes a cyclic redundancy check (CRC) checksum for each given FILE, or standard input if none are given or for a FILE of ‘-‘. Synopsis: cksum [OPTION]… [FILE]…
Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base
Cloud Computing – What does it mean to System Administrators
Most of us already know that Cloud Computing is a new Buzz word in the industry and it is very true that everyone want to learn about it as much as possible. For myself, I have been reading and observing cloud computing evolution for past one...
SRDF – Symmetrix remote data facility
Introduction: Symmetrix Remote Data Facility (SRDF) family of software is the industry’s most powerful suite of remote storage replication solutions for disaster recovery and business continuity designed by EMC. SRDF transparently remotely mirrors production or primary (source) site data to a secondary (target) site....
You are an awesome sysadmin, but still your resume get no attention for interview call !!! This post is for you
Greetings to All !! I know it was quite long gap in between my posts. And the blame goes to my day job ( just kidding .. :) ) Actually i have lot of stuff to share with you all, but in this post i will...
Solaris Troubleshooting SDS/SVM : "device busy too long" error from sd / ssd
This message has nothing to do with a connectivity issue to the target device – it applies when that device has reported back a SCSI status 8 (“busy” status) to the host, and to report back a SCSI status, the target must be able to communicate...
Solaris : Setup NTP client in solaris 8 , 9 and 10
This post describes how to set up NTP (Network Time Protocol) client different ways 1. Copy over /etc/inet/ntp.client to /etc/inet/ntp.conf # cp /etc/inet/ntp.client /etc/inet/ntp.conf 2. start xntpd daemon on client For Solaris 8 and 9: # /usr/lib/inet/xntpd For Solaris 10: # svcadm enable ntp There are...
‘sha1sum’ and ‘sha2’ utilities : Print or check SHA-1 digests SHA-2 digests
‘sha1sum’ computes a 160-bit checksum for each specified FILE. The usage and options of this command are precisely the same as for ‘md5sum’.
Solaris SVM : Disk replacement for Systems With Internal FCAL Drives Under SVM (V280R, V480, V490, V880, V890):
Beginning with Solaris 9 Operating System (OS), Solaris Volume Manager (SVM) software uses a new feature called Device-ID (or DevID), which identifies each disk not only by it’s c#t#d# name, but also by a unique ID generated by the disk’s World Wide Number (WWN), or serial...
Seven Social engineering Tips for the Sytem Admins who are going to join in a new team.
Are you a new system admin who is going to join in a new team for your new job? If your answer is yes, certainly this post very much useful for you. Below 7 points that I am discussing here will help you to establish healthy relationship with...
‘pr’: Paginate or columnate files for printing
‘pr’ writes each FILE (‘-‘ means standard input), or standard input if none are given, to standard output, paginating and optionally outputting in multicolumn format; optionally merges all FILEs, printing all in parallel, one per column. Synopsis: pr [OPTION]… [FILE]… By default, a 5-line header...
