Good day.
A next problem with ZFS:
Carried out a copy from HDD (FreeBSD UFS2) to another HDD (ZFS v13) a large amount of data (26 GB, archive packages for FreeBSD 7-STABLE AMD64)
Initially, an excellent copy speed (60 MB / sec). Once copied 4 GB speed drops to 15 MB / sec (and remains so until the end of the end of the command: cp-rf / mnt / / tank / packages /)
System: FreeBSD 7.2-STABLE, AMD64, ZFS v13.
Percent: AMD X2 4800+, RAM: 4 GB.
PS: No ZFS tuning was carried out.
A next problem with ZFS:
Carried out a copy from HDD (FreeBSD UFS2) to another HDD (ZFS v13) a large amount of data (26 GB, archive packages for FreeBSD 7-STABLE AMD64)
Initially, an excellent copy speed (60 MB / sec). Once copied 4 GB speed drops to 15 MB / sec (and remains so until the end of the end of the command: cp-rf / mnt / / tank / packages /)
System: FreeBSD 7.2-STABLE, AMD64, ZFS v13.
Percent: AMD X2 4800+, RAM: 4 GB.
PS: No ZFS tuning was carried out.