Now: Elevator, Was: 3Ware Escalade 5000 6000, opinions?

2000-07-25 Thread Dan Jones
e different. -Dan // Jarkko -- Dan Jones, Manager, Storage Products VA Linux Systems V:(408)542-5737 F:(408)745-9911 1382 Bordeaux Drive [EMAIL PROTECTED]Sunnyvale, CA 94089

Re: speed and scaling

2000-07-21 Thread Dan Jones
ReadWrite BW MB/s CPU BW CPU RAID3 45.244% 6.8 5% RAID5 46.245% 6.6 5% RAID6(0+1) 39.639% 16.7* 14% RAID0 50.550% 36.730% * This is better After talking to Dan Jones

Re: adaptec 2940u2w hangups

2000-04-18 Thread Dan Jones
is a non-issue. -- Dan Jones, Storage Engineer VA Linux Systems V:(408)542-5737 F:(408)745-9130 1382 Bordeaux Drive [EMAIL PROTECTED]Sunnyvale, CA 94089

Re: Power Supply for multiple disks?

2000-04-10 Thread Dan Jones
hours it's not unreasonable for a 1-second latency for the system to come back up, provided that it provides full response after that. -- Dan Jones, Storage Engineer VA Linux Systems V:(408)542-5737 F:(408)745-9130 1382 Bordeaux Drive [EMAIL

Re: Power supply for multiple disks

2000-04-10 Thread Dan Jones
ions as motherboards draw most of the +5V. However, drive requirements for +5V have decreased over time while +12V loading has increased. Both older power supplies and cheaper PS depend upon +5V being loaded sufficiently to provide good regulation of all voltage outputs. -- Dan Jones, Storage

Re: Mylex config

2000-04-07 Thread Dan Jones
. If you intervene i.e. AltR atthe BIOS prompt, the controller aborts the recovery process and does not provide and further guidance. You are then entirely on your own and 9 times out of 10 will screw up. Or, is it 10 times out of 10. I forget. -- Dan Jones, Storage Engineer VA

Re: Are Ultra 160 adapters compatible with UW SCSI?

2000-03-20 Thread Dan Jones
om/hardsoft/diskdrdl/library/ultra3.htm According to time honored SCSI tradition, a drive can call itself Ultra3 SCSI if it implements any one of the new features of Ultra3. -- Dan Jones, Storage Engineer VA Linux Systems V:(408)542-5737 F:(408)745-9130 1382 B

Re: Benchmarking.. how can I get more out of my box?

2000-03-08 Thread Dan Jones
that results from reducing the segment size in the Mylex controller indicates to me that there remains a lot of room for tuning in linux for sequential transfers. -- Dan Jones, Storage Engineer VA Linux Systems V:(408)542-5737 F:(408)745-9130 1382 Bordeaux Drive [EMAIL

Re: Benchmark 1 [Mylex DAC960PG / 2.2.12-20 / P3]

2000-02-29 Thread Dan Jones
for that particular controller: http://www.mylex.com/products/dac960/drivers/filmbios.html There is a newer version of the DAC960 driver for 2.2.14: http://www.dandelion.com/Linux/DAC960.html -- Dan Jones, Storage Engineer VA Linux Systems V:(408)542-5737 F:(408)745-9130

Re: tiotest 0.21/0.24

2000-02-29 Thread Dan Jones
(170/2)KB 8 4.6620 11.9793 97.2662 16.6(170/2)KB Queuing? 16 4.8134 13.5368 99.7289 18.3(180/2)KB Queuing? 32 5.1743 12.9215 113.547 18.1(160/2)KB 64 5.1585 12.3916 117.426 17.5(150/2)KB uP loading? -- Dan Jones, Storage Engineer