I’m moving out – of my first vserver that is. I have had the server running for, well lucretia:~# uptime 19:19:59 up 700 days, 22:51, 2 users, load average: 0.02, 0.06, 0.02 Wow.. Time flies. I have been migrating the services running in the machine to another, server. Not is the time to do the […]
Category Archives: Data recovery
Is ZFS overly hyped?
When ZFS first appeared, it was well received and praised. The time was ripe for a modernization of file systems to eliminate the tedious task of having to plan and create volume groups. My first experience with ZFS was when I was hired to build a NAS for a small business. Initially, I chose to […]
ZFS drive replacement
This is a post about the robustness of zfs, and can serve as a mini how-to for people who wants to replace disks and do not have hot spare in the system. Background Last Monday, our local area was hit by a tremendous rainfall which caused our basement to be flooded. You can see the […]
A lesson in recovery techniques
I recently got this message from fsck.jfs: Unrecoverable error writing M to /dev/sdb3. CANNOT CONTINUE. Okay, so this is an error that can be ignored – right? I can just force mount the partition and extract the data with superblock marked as dirty … right?! krc@X61s % mount -o ro -f /dev/sdb3 /mnt/rec_mount krc@X61s % ls /mnt/rec_mount krc@X61s % Damn it! This was an 1,4 TB parition with 900GB of data including home […]