Date: Tue, 10 Aug 1999 21:07:32 -0700 (PDT) From: Tom <tom@sdf.com> To: Mike Tancsa <mike@sentex.net> Cc: scsi@freebsd.org Subject: Re: External RAID boxes (was Re: AHC errors. Bad disk or bad firmware, or bug in driver ?) Message-ID: <Pine.BSF.4.05.9908102105520.23357-100000@misery.sdf.com> In-Reply-To: <4.1.19990810125322.042afb60@granite.sentex.ca>
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On Tue, 10 Aug 1999, Mike Tancsa wrote: > > Legacy make some pretty amusing stuff. They sell direct and via various > >wholesellers (ie Globelle). I can get Legacy stuff cheaper from Globelle > >than I can direct from Legacy. > > > > Legacy is basically just an integrator. They slap a RAID controller, > >and some drives together in a box, and then put their name on it. In > >fact, I think Legacy uses CMD RAID units in their boxes. > > Someone else pointed out that from the docs on Legacy's web site, they seem > to be OEM'ing Mylex > > "Management Port Cause: The SmartARRAY cannot establish communication with > the DAC960 hardware" That appears to be for the one's that require host cards. Those won't likely work under FreeBSD, unless FreeBSD has a driver for Mylex PCI RAID cards. > > There is nothing that Legacy is doing that you can't do yourself. > >Overnight replacement is no concern for me, as overnight is still too > >long! And if you've lost data because of the failure... There should be > >a enough resilency so that failures aren't a problem. All high-end drives > >have 5yr warranties, BTW. > > > > If I was going to setup a high-avail box, I'd use two CMD raid units. > >They have some kind of fail over mode where one can take over if one > >fails (I don't belive Legacy gives you this as an option, but you can if > >you build it yourself). Disks would combined with RAID-5, and an online > >spare (or two). > > Unfortunately my budget is limited. I dont want to go with the cheapest > solution out there, nor can I afford the most expensive. For me, an > external RAID box will be a step up rather than relying on tape backups and > retiring old drives before they might have a chance to fail. > > As for the CMD units, have you had any direct experience with them ? If budget is very important, use a DPT RAID card instead. > Thanks, > > ---Mike > ********************************************************************** > Mike Tancsa, Network Admin * mike@sentex.net > Sentex Communications Corp, * http://www.sentex.net/mike > Cambridge, Ontario * 01.519.651.3400 > Canada * Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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