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@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
