Re: [zfs-discuss] Problems with zfs and a "STK RAID INT" SAS HBA

2010-04-05 Thread Ragnar Sundblad
On 5 apr 2010, at 04.35, Edward Ned Harvey wrote: >> When running the card in copyback write cache mode, I got horrible >> performance (with zfs), much worse than with copyback disabled >> (which I believe should mean it does write-through), when tested >> with filebench. > > When I benchmark my

Re: [zfs-discuss] Problems with zfs and a "STK RAID INT" SAS HBA

2010-04-04 Thread Edward Ned Harvey
> When running the card in copyback write cache mode, I got horrible > performance (with zfs), much worse than with copyback disabled > (which I believe should mean it does write-through), when tested > with filebench. When I benchmark my disks, I also find that the system is slower with WriteBack

[zfs-discuss] Problems with zfs and a "STK RAID INT" SAS HBA

2010-04-03 Thread Ragnar Sundblad
Hello, Maybe this question should be put on another list, but since there are a lot of people here using all kinds of HBAs, this could be right anyway; I have a X4150 running snv_134. It was shipped with a "STK RAID INT" adaptec/intel/storagetek/sun SAS HBA. When running the card in copyback wr