Date: Fri, 10 Jul 1998 10:11:15 -0700 From: John Polstra <jdp@polstra.com> To: Amancio Hasty <hasty@rah.star-gate.com> Cc: current@FreeBSD.ORG Subject: Re: Does "make -j4 buildworld" actually help anybody? Message-ID: <199807101711.KAA29210@austin.polstra.com> In-Reply-To: Your message of "Fri, 10 Jul 1998 09:55:37 PDT." <199807101655.JAA29491@rah.star-gate.com>
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> What sort of disks do you have ? IBM DDRS-34560W. These are the 4.5 GB version of the so-called Ultrastar 9ES SCSI disks. Justin recommended them to me, and they seem quite fast and nice so far. Though I have a feeling that the shipper dropped the box off of a loading dock somewhere along the line. Of three disks (shipped installed in the system), one was perfect, one had about 20 new defects, and I gave up and sent back the third after correcting more than 60 new defects with no end in sight. The vendor says he tested the system before shipping it, and I choose to believe him. One strange thing is that reformatting the disk from the controller BIOS (AIC-7895) did _not_ remap or avoid the defects. They were still there, and the only way I could get rid of them was one by one using the controller's SCSI verify. The SCSI spec says it's optional to test the media during a reformat, but this is the first disk I've seen that didn't do it. I think I could have crafted a scsi(8) command that would have forced it, but with so many defects I preferred to exchange the disk. Anyway, despite all that, I think they are good disks. John To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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