Zfs boot mirror setup

Right-click in Terminal pastes. If a mirrored drive fails, you can replace it by following a similar method as adding a second drive in the first place.

The new drive may already contain ZFS or mdadm signatures. If you like, test by rebooting: sudo reboot , and confirm that pools are healthy after reboot with zpool status. Similar to replacing a failed drive, just that partition 4, the rpool partition, will be bigger. Wait for resilver after replacement, then replace the second drive. Once both drives have been replaced, rpool has the new capacity.

Follow the instructions under "Replacing a failed drive", starting from "Repair boot pool". Wait for resilver to complete afterwards. Then, run through these instructions again, replacing the second drive. Once resilver is done a second time, you will have the new capacity on the rpool. I did a walkthrough of these instructions. Sorry, something went wrong. I have installed Ubuntu Everything worked except for one final test:.

After reboot it worked to boot the computer with either of the two disks disabled in BIOS. Interesting re second disk not booting and needing efi2. I wonder whether In May be worth bringing up upstream, so Canonical can fix it in I am really interested in expanding the rpool. Sorry I counld't find a video for the rpool. I have GB additional hard drive space on my refurbished laptop. I would like to expand the rpool with the GB.

Apologies I just re-read a few times and I understand now that I misunderstood, your instructions were for replacing with a bigger drive, and I just want to extend my rpool. For extending pool you have the usual option: add another vdev. So if you have one mirror now, add a second one. Maybe another year if all goes well. I'm unclear on the rationale for using mdraid for swap. Would it not make more sense to just use 2 swap partitions?

You'd get twice the amount of swap, simpler configuration users won't need to know mdadm. On a failure linux will work just fine with one less swap partition or even with no swap partitions. Will Linux also work just fine if the disk that Linux uses for swap dies? If you want to continue to boot from the remaining root pool device or you want to boot automatically from the remaining root pool disk, you need to update the PROM to specify that default boot device.

For example, you can boot from either disk c1t0d0s0 or c1t1d0s0 in this pool. SPARC or x86 : If you replace a root pool disk by using the zpool replace command, you must install the boot information on the newly replaced disk by using the bootadm command. If you create a mirrored ZFS root pool with the initial installation method or if you use the zpool attach command to attach a disk to the root pool, then this step is unnecessary.

The bootadm syntax is as follows:. If you want to install the boot loader on an alternate root pool, then use the —P pool option. If you want to install the GRUB legacy boot loader, then use the legacy installgrub command. You did not copy your label information from your primary to your secondary disk with prtvtoc and fmthard. Today, I went to the beachfront with my children. There was a hermit crab inside and it pinched her ear. She never wants to go back!

LoL I know this is completely off topic but I had to tell someone! Letsgetdugg Random tech jargon. Emulation Subscribe.

Here is the correct way of getting both the disks in the ZFS mirror to boot. Filed under administration main.