"O. Hartmann" <ohartman_at_zedat.fu-berlin.de> wrote: > Running 12-CURRENT (FreeBSD 12.0-CURRENT #32 r306579: Sun Oct 2 09:34:50 CEST 2016 ), I > have a NanoBSD setup which creates an image for a router device. > > The problem I face is related to ZFS. The system has a system's SSD (Samsung 850 Pro, > 256GB) which has an UFS filesystem. Aditionally, I have also a backup and a data HDD, > both WD, one 3 TB WD RED Pro, on 4 TB WD RED (the backup device). Both the sources for > the NanoBSD and the object tree as well as the NANO_WORLDDIR are residing on the 3 TB > data drive. > > The box itself has 8 GB RAM. When it comes to create the memory disk, which is ~ 1,3 GB > in size, the NanoBSD script starts creating the memory disk and then installing world > into this memory disk. And this part is a kind of abyssal in terms of the speed. Can you reproduce the issue if you replace the memory disk with a zvol or tmpfs? While I agree that depulication could be the cause of the problem, it probably wouldn't hurt to rule out a memory-disk related issue before recreating the pool. Fabian
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