stable/8-amd64 on ZFS as a vSphere backend

2011-06-11 Thread Dmitry Morozovsky
Dear colleagues, any particular hints to tune FreeBSD NFS server for efficient work as a VMware vSphere backend? For now, I set up 16G amd64 with ZFSv28, 4k recordsize and no other particular tuning, roundrobin lagg on 2 ems, mtu 9000. There are 4 WD RE3 1T disks as AHCI, on raid10 ZFS

log_sysevent: type 19 is not implemented messages during boot

2011-06-11 Thread Rolf Nielsen
Hi all, After going from 8.2-RELEASE to 8-STABLE (to get ZFS v28), I get log_sysevent: type 19 is not implemented exactly 20 times during boot. What does that message mean? Need I worry about it? And even if it's harmless, it annoys me, so can I get rid of it, and if so, how? TIA, Rolf

Re: log_sysevent: type 19 is not implemented messages during boot

2011-06-11 Thread Sergey Kandaurov
On 11 June 2011 20:01, Rolf Nielsen listrea...@lazlarlyricon.com wrote: Hi all, After going from 8.2-RELEASE to 8-STABLE (to get ZFS v28), I get log_sysevent: type 19 is not implemented exactly 20 times during boot. What does that message mean? Need I worry about it? And even if it's

Re: log_sysevent: type 19 is not implemented messages during boot

2011-06-11 Thread Rolf Nielsen
2011-06-11 18:43, Sergey Kandaurov skrev: On 11 June 2011 20:01, Rolf Nielsenlistrea...@lazlarlyricon.com wrote: Hi all, After going from 8.2-RELEASE to 8-STABLE (to get ZFS v28), I get log_sysevent: type 19 is not implemented exactly 20 times during boot. What does that message mean? Need

Re: HEADS UP: ZFS v28 merged to 8-STABLE

2011-06-11 Thread David Magda
On Jun 10, 2011, at 17:25, Volodymyr Kostyrko wrote: Am I missing something? How about using fletcher[24] for dedup? Fletcher is fairly weak as things go, and so even though two checksums are the same, there's a decent chance that the data is actually different. At least with recent releases

Re: HEADS UP: ZFS v28 merged to 8-STABLE

2011-06-11 Thread David Magda
On Jun 10, 2011, at 17:24, Bob Friesenhahn wrote: Dedup can require a huge amount of RAM, or a dedicated L2ARC SSD, depending on the size of your storage. You should not enable it unless you are prepared for the consequences. Under OpenSolaris, each tracking entry for a deduped block