Date: Tue, 23 Feb 1999 11:33:13 +0200 From: Ruslan Ermilov <ru@ucb.crimea.ua> To: FreeBSD Questions <questions@freebsd.org> Subject: WD Enterprise SCSI drive performance Message-ID: <19990223113313.A37683@ucb.crimea.ua>
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Hi! I have the following hardware: FreeBSD 3.1-STABLE #1: Mon Feb 22 13:14:55 EET 1999 ahc0: <Adaptec aic7880 Ultra SCSI adapter> rev 0x00 int a irq 11 on pci0.13.0 ahc0: Using left over BIOS settings ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs da0 at ahc0 bus 0 target 0 lun 0 da0: <WDIGTL ENTERPRISE 1.80> Fixed Direct Access SCSI-2 device da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit) da0: 4157MB (8515173 512 byte sectors: 64H 32S/T 4157C) Using (dd if=/dev/zero of=/usr/tmp/file bs=64k count=1000) I get about 4.2MB/s. Is it normal? What is the expected write speed of this drive? -- Ruslan Ermilov Sysadmin and DBA of the ru@ucb.crimea.ua United Commercial Bank +380.652.247.647 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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