Date: Sun, 03 May 1998 23:48:48 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: "Jeffrey M. Metcalf" <metcaljm@utrc.utc.com> Cc: questions@FreeBSD.ORG, metcalf@snet.net Subject: Re: kern/4498 Message-ID: <12326.894232128@critter.freebsd.dk> In-Reply-To: Your message of "Sun, 03 May 1998 16:00:16 EDT." <354CCCD0.44D6297F@snet.net>
next in thread | previous in thread | raw e-mail | index | archive | help
>1. Is it something proprietary in the IBM (Exabyte) 7208/011 that's >causing the > problem or is it a limitation of the aic device driver? Recall it >works fine > from NT. I seem to recall that the general sentiment is that 6330 based cards probably work as well as the specs say, but the FreeBSD driver is not very good. This rhymes well with the trouble I see occasionally from one such chip sitting in an old 486 machine I have here. I'm not aware of anybody actively working on the driver, but we can at least hope that it gets improved during the upcoming "SCSI-CAM" coding frenzy, there is no guarantee that it will be though. >2. Asuming there is no problem with the AIC-6360 or the aic driver, am >I correct > in concluding that most SCSI tape drives are slow so that having a >better > adapter JUST for the ZIP and tape drive would be pointless? Well, as I said above, I think our driver is sub-standard, so I would find a better adapter for the Exabyte at least, this is also due to the fact that the specs didn't say that your entire system is not doing anything else while transfering data over this adapter. This is bad for a tapedrive, since you want to read/write to disk in parallel with the tape write/read operation, in particular for helical-scan media. -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." "ttyv0" -- What UNIX calls a $20K state-of-the-art, 3D, hi-res color terminal To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?12326.894232128>