Date: Sun, 16 Jul 2000 04:33:59 GMT From: mike@sentex.net (Mike Tancsa) To: root@web-walrus.com (Grandpa Walrus) Cc: questions@freebsd.org Subject: Re: Regarding SCSI Hardware Message-ID: <397132e7.173170696@mail.sentex.net> In-Reply-To: <SEN.963716487.193349735@news.sentex.net> References: <SEN.963716487.193349735@news.sentex.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On 15 Jul 2000 23:01:27 -0400, in sentex.lists.freebsd.questions you wrote: >I looked on the FreeBSD site, and I don't see any information about >supported SCSI devices. Is this information contained anywhere on my >system? Yes, in the HARDWARE.TXT file. See ftp://ftp.freebsd.org/pub/FreeBSD/releases/i386/4.0-RELEASE/HARDWARE.TXT However, as there is a new 4.1 RELEASE out soon, there have been some changes adv0 n/a n/a n/a n/a AdvanSys Narrow SCSI controllers adw0 n/a n/a n/a n/a AdvanSys Wide SCSI controllers amd0 n/a n/a n/a n/a AMD 53C974 (Tekram DC390(T)) ncr0 n/a n/a n/a n/a NCR PCI SCSI controller bt0 330 dyn dyn dyn Buslogic SCSI controller aha0 330 dyn 5 dyn Adaptec 154x/1535 SCSI controller ahb0 dyn dyn dyn dyn Adaptec 174x SCSI controller ahc0 dyn dyn dyn dyn Adaptec 274x/284x/294x SCSI controller aic0 340 11 dyn dyn Adaptec 152x/AIC-6360/AIC-6260 SCSI controller isp0 dyn dyn dyn dyn QLogic 10X0, 1240 Ultra SCSI, 1080/1280 Ultra2 SCSI, 12160 Ultra3 SCSI, 2X00 Fibre Channel SCSI controller dpt0 dyn dyn n/a n/a DPT RAID SCSI controllers amr0 dyn dyn n/a n/a AMI MegaRAID controllers mlx0 dyn dyn n/a dyn Mylex DAC960 RAID controllers >I'm looking for a simple solution to do hot-swappable SCSI RAID mirroring >(one drive goes bad, the system stays up, I swap it when I get the chance >sort of thing) under FreeBSD 3.x or 4.x. 4.x is what you want. 3.x is old now. A Mylex or MegaRAID controller will work, provided you have the right enclosure. See also http://www.freebsd.org/~msmith/RAID for more details >Does this require a significant amount of hardware? depends on what your budget is.... > >Also, is it possible to have two different sized disks in a RAID array? >(i.e. I install two 9 GB SCSI disks, and later I can't find any 9 GB disks >to replace a failed one with...would a 12 GB disk work?) Do they have to >be exactly the same RPM? No. You generally want identical drives. You might want to browse through some of the more general FAQs on storage. There is a RAID FAQ as well you should read that has a lot of background info on the topic of RAID that applies not just to FreeBSD. ---Mike Mike Tancsa (mdtancsa@sentex.net) Sentex Communications Corp, Waterloo, Ontario, Canada "Given enough time, 100 monkeys on 100 routers could setup a national IP network." (KDW2) 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?397132e7.173170696>