How long should a zdb run?

[jason.rohm]

Running zdb against my hosed zpool (see my other thread for details on my bone-headed move). I'm curious if someone can estimate how long this should run and if there is a way to see what exactly it is doing (or not). The output to date is exactly nothing. I see disk activity, but very little. It's been running about 48 hours at this point.

Running zdb -e -bcsvvvvL Volume0 against the following zpool. This is output during a previously aborted run. I'm currently running it in single user mode. I was previously running it unmounted at a normal run level.

capacity operations bandwidth ---- errors ----
description used avail read write read write read write cksum
Volume0 3.50T 43.8T 28 0 128K 0 0 0 0
raidz1 3.50T 43.8T 28 0 128K 0 0 0 0
/dev/gptid/3fe1e786-c59e-11e6-96a6-b499ba055f38 144 0 1.42M 0 0 0 0
/dev/gptid/40da9329-c59e-11e6-96a6-b499ba055f38 139 0 1000K 0 0 0 0
/dev/gptid/41d56d43-c59e-11e6-96a6-b499ba055f38 141 0 1008K 0 0 0 0
/dev/gptid/42bf91e1-c59e-11e6-96a6-b499ba055f38 0 0 0 0 0 0 0
/dev/gptid/43be76db-c59e-11e6-96a6-b499ba055f38 137 0 992K 0 0 0 0
/dev/gptid/44b51c4c-c59e-11e6-96a6-b499ba055f38 137 0 992K 0 0 0 0
/dev/gptid/45b7ad24-c59e-11e6-96a6-b499ba055f38 135 0 984K 0 0 0 0
/dev/gptid/46af07c0-c59e-11e6-96a6-b499ba055f38 136 0 988K 0 0 0 0
/dev/gptid/47a512af-c59e-11e6-96a6-b499ba055f38 139 0 1000K 0 0 0 0
/dev/gptid/48991bb7-c59e-11e6-96a6-b499ba055f38 137 0 992K 0 0 0 0
/dev/gptid/499c0c2e-c59e-11e6-96a6-b499ba055f38 137 0 992K 0 0 0 0
/dev/gptid/4a7a328e-c59e-11e6-96a6-b499ba055f38 137 0 992K 0 0 0 0
/dev/gptid/4b69b2ff-c59e-11e6-96a6-b499ba055f38 137 0 992K 0 0 0 0

 

[dlavigne]

Did you find an answer? And how long did it run?

 

[jason.rohm]

I never got an answer, but the process has been running about six days now. Early yesterday I started getting output similar to the below and those messages have continued, so I've been letting it run.

objset 0 object 57 level 0 offset 0x139e0000 DVA[0]=<0:43bd7440000:2000> DVA[1]<0:d2c48b20000:2000> <DVA[2]=<0:1624bd202000:2000> [L0 DDT ZAP algorithm] fletch r4 lz4 LE contiguous unique tripple size=1000L/800P birth=406115L/40615P fill=1.....

I've recovered what I could from alternate backups and copies, so I'm just letting it run to find out how long it will take and to see if I can make a functioning pool out of it again.