Re: [zfs-discuss] Abysmal ISCSI / ZFS Performance - napp-it + benchmarks

2010-02-18 Thread Günther
hello there is a new beta v. 0.220 of napp-it, the free webgui for nexenta(core) 3 new: -bonnie benchmarks included http://www.napp-it.org/bench.png"; target="_blank">see screenshot -bug fixes if you look at the benchmark screenshot: -pool daten: zfs3 of 7 x wd 2TB raid edition (WD2002FYPS), de

Re: [zfs-discuss] Abysmal ISCSI / ZFS Performance - napp-it + benchmarks

2010-02-18 Thread Tomas Ögren
On 18 February, 2010 - Günther sent me these 1,1K bytes: > hello > there is a new beta v. 0.220 of napp-it, the free webgui for nexenta(core) 3 > > new: > -bonnie benchmarks included http://www.napp-it.org/bench.png"; > target="_blank">see screenshot > -bug fixes > > if you look at the benchma

Re: [zfs-discuss] Abysmal ISCSI / ZFS Performance - napp-it + benchmarks

2010-02-18 Thread Günther
hello my intention was to show , how you can tune up a pool of drives (how much can you reach when using sas compared to 2 TB high capacity drives) and now the other results with same config and sas drives: wd 2TB x 7, z3, dedup and compress on, no ssd daten 12.6T start 2010.02.

Re: [zfs-discuss] Abysmal ISCSI / ZFS Performance - napp-it + benchmarks

2010-02-18 Thread Bob Friesenhahn
On Thu, 18 Feb 2010, Günther wrote: i was surprised about the seqential write/ rewrite result. the wd 2 TB drives performs very well only in sequential write of characters but are horrible bad in blockwise write/ rewrite the 15k sas drives with ssd read cache performs 20 x better (10MB/s -> 200