Date: Sun, 9 Jun 2002 03:18:01 -0400 From: "Deepak Jain" <deepak@ai.net> To: "S H A N" <shanali@singnet.com.sg>, "FreeBSD Questions" <freebsd-questions@FreeBSD.ORG> Subject: RE: Network RAID on FreeBSD - is it possible? Message-ID: <GPEOJKGHAMKFIOMAGMDIEEKKMCAA.deepak@ai.net> In-Reply-To: <20020609031742.GA19660@singapura.singnet.com.sg>
next in thread | previous in thread | raw e-mail | index | archive | help
Depends on your application. The easiest things to do would be to look to your application for this sort of support. I can't think of too many applications that are _that_ important and _that_ sensitive to dataloss that aren't databases. Databases support this sort of replication (SQL style), and many applications that use proprietary formats support simultaneous writes to media. Your third option is to use a SAN that supports RAID 10. Hope this helps, Deepak Jain AiNET -----Original Message----- From: owner-freebsd-questions@FreeBSD.ORG [mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of S H A N Sent: Saturday, June 08, 2002 11:18 PM To: FreeBSD Questions Subject: Re: Network RAID on FreeBSD - is it possible? hi, implement vinum on nfs disks.. try your luck... u'r mileage may vary :) On Sun, Jun 09, 2002 at 10:06:51AM +1000, BSD Freak wrote: > Hi all, > > We have a server which is highly critical. Data loss or downtime on it > is not an option so we have a hardware RAID 1 and also a second "hot > host" (in another building) which replicates data from the main one > every 30 minutes (via rsync). However it is this 30 minute window that > concerns me because that leaves us open to 30 minutes of data loss. > > So basically what I'm asking is (without switching to Sun equipent) is > it possible to do some sort of network RAID where data is written to > both systems simultaneously? We need our system to carry on with no > data loss even if one of the servers should suffer a complete system > failure (ie be blown up or thrown out of the window)...... > > --------------------------------------------------------------------- > Would you like to receive faxes to your personal email address? > You can with mBox. Visit http://www.mbox.com.au/fax > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message -- S H A N 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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?GPEOJKGHAMKFIOMAGMDIEEKKMCAA.deepak>