Solved Perfect Wind and Event Storm

[mefizto]

Greetings all,

last night, we had high wind and, as it is a habit of the power company, they turned power off. Regretfully, there was some glitch in our backup system coming on line, the power cycled about three times being off for a few seconds each time before it stabilized. When I came to the lab, I found both of my servers to be off, since the UPS powering the servers malfunctioned. Not to be the end of the event storm, a power supply in one of my servers failed.

Upon replacing the power supply, the server came on-line, but both pools reported "Insufficient replicas" in regards to the mirror-x and "cannot open" in regards to both drives in the respective mirrors.

To paraphrase a title of a popular movie "Is all lost?"

Kindest regards,

M

 

[JordanG]

Boot from FreeBSD install media in rescue mode and collect some more information: The output of dmesg concerning disk drives, the output of gpart show and the output of zpool import should provide a good start.

If you can see the disks, you can try reading from them via dd(1). If they are perfectly readable, there is a good chance of recovering information.

Using a UPS saves you from power outages but only some UPS devices can protect from power surges. And power surges can destroy more than just power supplies (e.g. hard disk drives)

Also, the Solved label is applied to this thread. If the problem is resolved, you can share how you did it. Otherwise, the label is misleading and might cause people to skip your post.