Just to update the status and findings. I've checked TLER settings and they are off by default.
I moved the source pool to another chassis and do the 3.8TB send again. this time, not any problems! the difference is 1. New chassis 2. BIGGER memory. 32GB v.s 12GB 3. although wdidle time is disabled by default, I've change the HD mode from silent to performance in HDtune. this is what I once heard from some website that might also fix the disk head park/unpark issue (aka, C1). seems TLER is not the root cause or at least, set to off is ok. my next step will be 1. move back HD to see if it's the "performance mode" fix the issue 2. if not, add more memory and try again. by the way, in HDtune, I saw C7: Ultra DMA CRC error count is a little high which indicates a potential connection issue. Maybe all are caused by the enclosure? -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
