Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello all, I have searched on google and found out that lower device should not be mounted which has lead to a lot of confusion. My problem is, I am trying to configure /dev/sda to work with DRBD hence the error "Lower Device Already Claimed". It works well when I use /dev/sdb or unmounted partition. As we all know that in runlevel 3, the / (slash root) cannot be unmounted as it is being used so the question becomes how would I make DRBD work with /dev/sda on which I have / (slash root) mounted. *What I am trying to do.* I want to mirror one drive over the network with another drive to serve for failover purposes (I believe as DRBD states it is like a RAID1 over the network). the two systems master and slave would run exact configuration both hardware and software. therefore for test purposes, I have created /dev/sda1 on which / (slash root) resides. This / contains the base structure created by Centos such as / /boot /dev /bin /home /etc I also have free space that can be partitioned to create /dev/sda2. Now all programs such as httpd, mysql, vsftpd, webmin, bind, sendmail, dovecot and many others are installed with in the /dev/sda1 as well as the data associated with these programs also resides on the /dev/sda1 *What I don't understand* If I use /dev/sda2 which is unmounted partion then what would I need to do in terms of setup to ensure that the entire /dev/sda is replicated or how would I mount the /dev/drbd0 to / Confusing :D Thank you all and I am looking forward to your expert responses, leads, assistance :) Sincerely -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20110525/1cf66066/attachment.htm>