Just as a random data point, I have about 80-100 MBit/s write performance to a CIFS share on a 4x 1 TByte Seagate 7200.11 system (all four drives on the same PCI SATA Adaptec at 1.5 GBit), 2 GByte RAM, 2 GHz Athlon 64 with FreeNAS 0.7 (FreeBSD 7.2). This is raidz2. Interface is GBit Ethernet (Intel NIC, PCI), jumbo frames (MTU 9000). When scrub is in progress, write falls down to 30-40 MBit/s. Memory usage and CPU load during normal write is about 20-30%. This is pretty bad, whether this is due to hardware issues or poor zfs implementation in FreeBSD 7.2 is beyond my ken. Here''s hoping FreeBSD 8.0 which is just out and claims zfs ready for production will do better. -- Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE
Hi Eugen, please have a look at my this blogpost -> http://harryd71.blogspot.com/2009/06/benchmark-of-freenas-07-and-single-ssd.html 105 MByte/s Read - 77 MByte/s Write over 1 GBit/s Ethernet is not to bad for a single SSD... Regards, Harry On Mon, Nov 30, 2009 at 10:02 AM, Eugen Leitl <eugen at leitl.org> wrote:> > Just as a random data point, I have about 80-100 MBit/s write > performance to a CIFS share on a 4x 1 TByte Seagate 7200.11 > system (all four drives on the same PCI SATA Adaptec at 1.5 GBit), > 2 GByte RAM, 2 GHz Athlon 64 with FreeNAS 0.7 (FreeBSD 7.2). This is raidz2. > Interface is GBit Ethernet (Intel NIC, PCI), jumbo frames (MTU 9000). > When scrub is in progress, write falls down to 30-40 MBit/s. > Memory usage and CPU load during normal write is about 20-30%. > > This is pretty bad, whether this is due to hardware issues > or poor zfs implementation in FreeBSD 7.2 is beyond my ken. > Here''s hoping FreeBSD 8.0 which is just out and claims zfs ready for > production will do better. > > -- > Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org > ______________________________________________________________ > ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org > 8B29F6BE: 099D 78BA 2FD3 B014 B08A ?7779 75B0 2443 8B29 F6BE > _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >-- HOMEPAGE: http://pixelchrome.org
On Mon, Nov 30, 2009 at 10:20:09PM +0100, Harald Dumdey wrote:> please have a look at my this blogpost -> > http://harryd71.blogspot.com/2009/06/benchmark-of-freenas-07-and-single-ssd.html > 105 MByte/s Read - 77 MByte/s Write over 1 GBit/s Ethernet is not to > bad for a single SSD...That is indeed quite nice. I was hoping to be able to use ZIL and L2ARC in a hybrid storage pool with FreeBSD 8.0, but FreeNAS just commited suicide (went Linux) http://sourceforge.net/apps/phpbb/freenas/viewtopic.php?f=5&t=3966 This is highly unfortunate, since a fork is arbitrarily improbable, and leaves me with with just the options of NexentaStor, OpenSolaris or FreeBSD at command line level, or a random Linux NAS with btrfs (when it will go production eventually, if ever). Not a happy day. -- Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE