On 12.06.2013 06:57, Norman Rieß wrote: > Am 11.06.2013 16:19, schrieb Nick Khamis: >> Hello Everyone, >> >> Was wondering what people are running these days, and how do they >> compare to the 10,000 dollar SAN boxes. We are looking to build a fiber >> san using IET and glusterFS, and was wondering what kind of luck people >> where having using this approach, or any for that matter. > > the question is, what are you doing with it and why do you think you > need a fibre channel SAN. > Our goal indeed is to get rid of the SAN infrastructure as it is > delicately to all kinds of failure with nearly zero fault tolerance. > An example, you have an hicup or a power failure in your network. SAN is > dead from nowon and must be reinitialized on the server. Simple NFS > comes back up without any fuzz. > Another, you boot your storage systems due to an os update or something > like that. Your SAN will be dead. NFS will just go on as if nothing > happened. > We use netapp storage systems which are NAS and SAN capable. > Another point is, that if you have a SAN lun, there is either no way to > increase or decrease size on the fly, on cifs or nfs you can resize your > share on the go. > > So if you do not have a _really_ good reason to use a fribre channel > SAN, don't!
Hello, I tend to disagree. A correctly designed SAN (using dual Fabric among other things) is a lot more stable and has a lot better performance than any NAS (NFS, CIFS, iSCSI) solution. One other thing that also needs to be correctly configured to have a stable SAN infrastructure is the servers on it (Multipathing, partition alignment, queue depth, ...) according to the storage vendors recommendation. LUN expansion/shrink is storage vendor specific, some can not (netapp apparently) but others can. Just my 2 cents. Regards, -- Dan Johansson, <http://www.dmj.nu> *************************************************** This message is printed on 100% recycled electrons! ***************************************************
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