Re: [HACKERS] Consumer-grade vs enterprise-grade disk drives

2005-06-01 Thread Luke Lonergan
Hannu, > RAID10 > > "Throughput report Y-axis is type of test X-axis is number of processes" > "Record size = 8 Kbytes " > "Output is in ops/sec" > " Initial write "1352.90 > "Rewrite " 413.31 > RAID5 > > "Throughput report Y-axis is type of test X-axis is number of processes"

Re: [HACKERS] Consumer-grade vs enterprise-grade disk drives

2005-06-01 Thread Christopher Browne
[EMAIL PROTECTED] ("Jeffrey W. Baker") wrote: > On Mon, 2005-05-30 at 21:38 -0700, Luke Lonergan wrote: > After reading this very comprehensive benchmark: > > http://print.tweakers.net/?reviews/557 > > I purchased one of the Areca controllers with a large battery-backed > cache. It is unholy fast.

Re: [HACKERS] Consumer-grade vs enterprise-grade disk drives

2005-06-01 Thread Hannu Krosing
On T, 2005-05-31 at 17:08 +1200, Mark Kirkwood wrote: > Luke Lonergan wrote: > > Tom, > > > > This is a story that is evolving. Anyone else use StorageReview? Great > > comprehensive drive benchmarks: > > http://www.storagereview.com/ > > > > Check the comparisons between 15K RPM SCSI drives

Re: [HACKERS] Consumer-grade vs enterprise-grade disk drives

2005-05-31 Thread Luke Lonergan
Jeff, > If we're looking at the same benchmark (File Server DriveMark), the > fastest SCSI disk is 65% faster than the fastest SATA disk. The fastest > SCSI 10K disk is 25% faster than the SATA. I think it's misleading to compare drives on the basis of one benchmark. One of the things I like a

Re: [HACKERS] Consumer-grade vs enterprise-grade disk drives

2005-05-31 Thread Jeffrey W. Baker
On Mon, 2005-05-30 at 21:38 -0700, Luke Lonergan wrote: > Tom, > > This is a story that is evolving. Anyone else use StorageReview? Great > comprehensive drive benchmarks: > http://www.storagereview.com/ > > Check the comparisons between 15K RPM SCSI drives and the 2004 Western > Digital 10K

Re: [HACKERS] Consumer-grade vs enterprise-grade disk drives

2005-05-30 Thread Mark Kirkwood
Mark Kirkwood wrote: Luke Lonergan wrote: Although the benchmark numbers are pretty good, they have only published (what looks like) results for sequential IO. It would be interesting to see the random ones, as this would tell us how effective the TCQ implementation is. Referring to 3ware'

Re: [HACKERS] Consumer-grade vs enterprise-grade disk drives

2005-05-30 Thread Mark Kirkwood
Luke Lonergan wrote: Tom, This is a story that is evolving. Anyone else use StorageReview? Great comprehensive drive benchmarks: http://www.storagereview.com/ Check the comparisons between 15K RPM SCSI drives and the 2004 Western Digital 10K RPM SATA (Raptor) drives. The Raptors are an int

Re: [HACKERS] Consumer-grade vs enterprise-grade disk drives

2005-05-30 Thread Luke Lonergan
Tom, This is a story that is evolving. Anyone else use StorageReview? Great comprehensive drive benchmarks: http://www.storagereview.com/ Check the comparisons between 15K RPM SCSI drives and the 2004 Western Digital 10K RPM SATA (Raptor) drives. The Raptors are an interesting hybrid of SCSI

Re: [HACKERS] Consumer-grade vs enterprise-grade disk drives

2005-05-30 Thread Bruce Momjian
Yea, it is a great paper. It is an HTML version of the SCSI PDF I mentioned a few weeks ago: http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf Someone had mentioned it on the lists a few months ago but I only read it recently and resugges