Date: Tue, 08 May 2001 13:13:48 -0500 From: Douglas Egan <degan@calcon.net> To: dochawk@psu.edu, questions@freebsd.org Subject: Re: Raid Message-ID: <3AF8375C.DF2925C2@calcon.net> References: <200105081646.f48GkIx16552@fac13.ds.psu.edu>
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If vinum works like Linux raid, or NetBSD's RAIDFrame, when the hot standby is added into the array, reconstuction of the array starts taking place on the spare. This can take a while and I believe if you lose another drive during this reconstruction phase, the array is gone. I don't run with a hot standby so I don't know if reconstruction is automatic when a failure occurs or if you have to manually kick it off. I have been using the RAIDFrame raid5 under NetBSD for about 6 months now and it has worked great. I scrapped Linux raid at that time. I didn't like having to add patches at each kernel rev. I am going to bring up a FreeBSD system with vinum raid5 and see just how it compares to the RAIDFrame. Doug Egan dochawk@psu.edu wrote: > > Which is why RAID 1 is superior, IMHO. Drives are bloody cheap today. > > Your data probably not (else you wouldn't be using RAID in the first > > place) so make it use the best. > > my understanding is that you can have a hot standby on RAID 5, so that > if a disk fails, it is replaced with the standby, leaving you protected > whileyou replace the offending drive. But don't hold me to this; I > can't back it up (but we want to set up our new server like this). > > hawk > > -- > Prof. Richard E. Hawkins, Esq. /"\ ASCII ribbon campaign > dochawk@psu.edu Smeal 178 (814) 375-4700 \ / against HTML mail > These opinions will not be those of X and postings > Penn State until it pays my retainer. / \ > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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