Linux - NewbieThis Linux forum is for members that are new to Linux.
Just starting out and have a question?
If it is not in the man pages or the how-to's this is the place!
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
Would appreciate help in understanding the process of a RAID rebuild after a crash. The RAID setup I have mirrors disks, and I have hardware RAID.
What happens after a crash?
-- The system reboots & I respond by a 'yes' for filesystem integrity check
-- The filesystem check complete (it seems to dump to lost+found), the server finishes booting
-- At this stage, the RAID rebuild kicks in ...
What is being rebuilt? The image before the crash or the image after the filesystem integrity check?
To be sure, call my mirror set d0 & d1. Assume(?) that d0 is used to boot off, and RAID images d0 onto d1. All fine, until a crash. Now presumably, d0 is corrupt and due to the crash d1 hasn't had time to image d0. So now I reboot, and the OS does a file system integrity check on d0 & fixes any problem it finds. That done, system completes the boot process off d0. Now we have a state where
d0 = crashed & repaired OS
d1 = before crash OS
at this stage, what does RAID do? d0-->d1 or d1-->d0 ?
I suspect it is d0 --> d1, since one must assume that d1 mirrored whatever it was that corrupt the OS.
Just want to be sure of my understanding, and that I'm not overlooking any other possibility. Thanks.