Re: [zfs-discuss] ZFS write / read speed and traps for beginners

2008-06-16 Thread Cesare
There is another benchmark tool named "iozone" (http://www.iozone.org/). Hope this help. Cesare On Sun, Jun 15, 2008 at 6:43 AM, Will Murnane <[EMAIL PROTECTED]> wrote: > On Sun, Jun 15, 2008 at 04:30, Nathan Kroenert <[EMAIL PROTECTED]> wrote: >> So - using plain dd to the zfs filesystem on sai

Re: [zfs-discuss] ZFS write / read speed and traps for beginners

2008-06-15 Thread Menno Lageman
Nathan Kroenert wrote: > On the NGE front, it turns out that solaris does not seem to like the > ethernet address of the card. Trying to set it's OWN ethernet address > using ifconfig yielded this: > # ifconfig nge0 ether 63:d0:b:7d:1d:0 > ifconfig: dlpi_set_physaddr failed "nge0": DLSAP address

Re: [zfs-discuss] ZFS write / read speed and traps for beginners

2008-06-15 Thread Nathan Kroenert
Further followup to this thread... After being beaten sufficiently with a clue-bat, it was determined that the nforce 750a could do ahci mode for it's SATA stuff. I set it to ahci, and redid the devlinks etc and cranked it up as AHCI. I'm now regularly peaking at 100MB/s, though spending most o

Re: [zfs-discuss] ZFS write / read speed and traps for beginners

2008-06-14 Thread MC
> It turns out that when you are in IDE compatability mode, having two > disks on the same 'controller' (c# in solaris) behaves just like real > IDE... Crap! That is the second time I've seen solaris guess wrong and force what it thinks is right. Solaris will also limit the size of an ATA drive

Re: [zfs-discuss] ZFS write / read speed and traps for beginners

2008-06-14 Thread Will Murnane
On Sun, Jun 15, 2008 at 04:30, Nathan Kroenert <[EMAIL PROTECTED]> wrote: > So - using plain dd to the zfs filesystem on said disk > > dd if=/dev/zero of=delete.me bs=65536 NB: dd from /dev/zero is a poor benchmark. Since the writes to disk are all zero, you may create a sparse file, or ZFS i

[zfs-discuss] ZFS write / read speed and traps for beginners

2008-06-14 Thread Nathan Kroenert
Hey all - Just spent quite some time trying to work out why my 2 disk mirrored ZFS pool was running so slow, and found an interesting answer... System: new Gigabyte M750sli-DS4, AMD 9550, 4GB memory and 2 X Seagate 500GB SATA-II 32mb cache disks. The SATA ports on the nfoce 750asli chipset don