Date: Mon, 14 Apr 2003 03:40:31 -0700 From: Michael Smith <msmith@freebsd.org> To: scsi@freebsd.org Subject: Fwd: Problem of DELL PE1600SC's PERC3/SC Message-ID: <83ECD11A-6E65-11D7-B2EC-000393DA4D30@freebsd.org>
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Hoping that the LSI folks are watching this list... = Mike Begin forwarded message: > From: "Joanne huang" <hliuhui@hotmail.com> > Date: Monday, April 14, 2003 3:02:25 AM US/Pacific > To: msmith@FreeBSD.org > Subject: Fw: Problem of DELL PE1600SC's PERC3/SC > > Dear Mr. Smith, > > Following is my E-mail sent to you just now. But mx1.freebsd.org > refused it for not found my server's hostname(www.gztt.net ip: > 211.155.23.174). So I had to forward it to you by using another E-mail > address. Hope you can receive it. Thank you! > > Best regards, > Jimmy > ----- Original Message ----- From: Jimmy Leung To: msmith@FreeBSD.org > Sent: Monday, April 14, 2003 5:39 PM > Subject: Problem of DELL PE1600SC's PERC3/SC > > > Dear Mr. Smith, > > My name is Jimmy Leung. I'm Chinese. Thanks for your work on the > FreeBSD's amr driver! > > I installed FreeBSD4.8 on my client's DELL PE1600SC system few days > ago. And dmesg displayed the follwoing: > amr0: <LSILogic MegaRAID> mem 0xfcd00000-0xfcd0ffff irq 3 at device > 2.0 on pci1 > amr0: <LSILogic PERC 3/SC> Firmware 1.78, BIOS 3.29, 32MB RAM > mpt0: <LSILogic 1030 Ultra4 Adapter> port 0xdc00-0xdcff mem > 0xfcf00000-0xfcf0ffff,0xfcf10000-0xfcf1ffff irq 5 at device 4.0 on > pci1 > ...... > amrd0: <LSILogic MegaRAID logical drive> on amr0 > amrd0: 69356MB (142041088 sectors) RAID 5 (optimal) > > Everything seemed ok. But when I used dd to test the transfer rate of > the RAID, I got the following: > dd if=/dev/zero of=tt count=51200 > 51200+0 records in > 51200+0 records out > 26214400 bytes transferred in 2.529288 secs (10364339 bytes/sec) > > But I got 40059717 bytes/sec on a DELL PE2500's PERC 3/Di. And > 21593731 bytes/sec even on my PC with IDE harddisk! > > I don't know what cause the low transfer rate problem. On > http://people.freebsd.org/~msmith/RAID/ I found only PERC 2/SC, PERC > 2/DC, PERC3/DC, PERC3/DCL, PERC 3/QC listed there. Are there anything > should be modified in the amr driver to support PERC3/SC? Is it > Ultra2, Ultra160 or Ultra320 the difference between PERC2/SC and > PERC3/SC? If necessary, would you please use SSH to login to my Server > and have a test? I can send you account for that. Hope to receive your > reply soon. Thank you very much! > > Best regards, > Jimmy > > _________________________________________________________________ > 享用世界上最大的电子邮件系统— MSN Hotmail。 http://www.hotmail.com >
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