Hi, I needed to change the structure of the zil, because I added a separate couple of SSDs for it, but found some misleading docs about this and strange behaviours while working on it. The pool was: data ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 c7t50000C0F01F23F06d0 ONLINE 0 0 0 c7t5000039478C9927Ed0 ONLINE 0 0 0 c7t5000039478C99616d0 ONLINE 0 0 0 c7t5000039478C99752d0 ONLINE 0 0 0 c7t5000039478CA3AFEd0 ONLINE 0 0 0 c7t5000039478CA938Ad0 ONLINE 0 0 0 logs mirror-1 ONLINE 0 0 0 c6t55CD2E404B41A537d0s3 ONLINE 0 0 0 c6t55CD2E404B41A291d0s3 ONLINE 0 0 0 cache c6t55CD2E404B41A291d0s4 ONLINE 0 0 0 c6t55CD2E404B41A537d0s4 ONLINE 0 0 0 At first, I tried "detach" of first mirror-1 device, and I got the second device become the root of the zil, but "detach" of it gave errors. So I reattached the first one to get back to my mirror-1 device. Before going on, I added the second mirror zil, having mirror-1 and mirror-2 with their respective devices: this unexpectedly triggered a full resilvering, slowing down the pool for a couple of hours (luckily it was Saturday...why this??). Then I preferred to wait for resilver to end. Than I found I could do "remove mirror-1" to remove the entire zil branch: command got back to the prompt silently, but nothing happened, mirror-1 is still there. Now, I wouldn't want to do something to break the pool consistency on zil data while working. Looking again around I probably found that the correct way to get rid of log/mirror-1 now is: - detach one device from it to get the device of one new log root, parallel to mirror-2 - remove the second device (now new root) Is this correct? Will the mirror-2 get any residual data from mirror-1 or mirror-1 synced to real disks before removal? Thanks for your help Gabriele Sonicle S.r.l. http://www.sonicle.com Music: http://www.gabrielebulfon.com Quantum Mechanics : http://www.cdbaby.com/cd/gabrielebulfon
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