Date: Mon, 10 Aug 1998 19:35:25 -0500 From: David Kelly <dkelly@hiwaay.net> To: Stefan Esser <se@FreeBSD.ORG> Cc: Peter van Heusden <pvh@leftside.wcape.school.za>, freebsd-hackers@FreeBSD.ORG Subject: Re: EXA 8200 tape drive on FreeBSD? Message-ID: <199808110035.TAA00818@nospam.hiwaay.net> In-Reply-To: Message from Stefan Esser <se@FreeBSD.ORG> of "Tue, 11 Aug 1998 00:40:02 %2B0200." <19980811004002.C1778@mi.uni-koeln.de>
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Stefan Esser writes: > On 1998-08-09 17:32 +0200, Peter van Heusden <pvh@leftside.wcape.school.za> w > rote: > > However, I cannot write to it at all - even after a 'mt erase', I get the > > following: > > > > bash# mt rewind > > bash# dd if=/kernel of=/dev/nrst0 bs=64 count=1024 > > dd: /dev/nrst0: Input/output error > > 1+0 records in > > 0+0 records out > > 0 bytes transferred in 0.082043 secs (0 bytes/sec) > > bash# > > Did you try shorter transfers (less than 64KB blocks) ? > > I seem to remember, that the EXABYTE 8200 was limited to > less than 64KB per block (i.e. 63KB works, but 64KB doesn't). "bs=64" spells out 64 byte blocks, not 64k. "bs=64k" would be 64k. There might be a problem with the block being too small. :-) SGI Irix defaults to 128k blocks on Exabyte 8mm drives, including the 8200. Its FreeBSD that won't (can't) do more than 64k. As others have mentioned, when a new (new to you) Exabyte drive acts flaky its time to flash the EEPROMs or burn new EPROMs for the old 8200. I too have a new-to-me 8200 that ID's, rewinds, retensions, ejects, and all that good stuff. But doesn't work. If new EPROMs don't fix it, then its junk. That too is standard failure mode for an Exabyte. -- David Kelly N4HHE, dkelly@nospam.hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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