Greetings, On Tue, Aug 27, 2013 at 12:25 PM, km <[email protected]> wrote: > Dear All, > >> > Yes,We plan for 2 LUNS and 4 hosts/servers will be accessing SAN/NAS. > There are no clusters. yes we require multi host access. >
Unless you have a HA cluster , You cannot get away with Less number of LUN than hosts. Think of LUN as a hard disk partition. IT is a Block device, There is a raw device also which Databases like Oracle love. If you want CIFS/NFS as the layer on top of these two LUN, Now this will just be a file share. "Cooked" network share. Not some block device. Think of LUN as a hard disk partition. >> >> What sort of tape device is recommended for a SAN/NAS of 256Tb ? I do > not know. Please suggest. > Pay money to Big vendors, They will definitely come-up with the figure that can give somebody some kinda attack ;) Seriously such questions cannot be handled with just two small mails with insufficient information. It is not like buying 250 hard disk and putting them into desktop. If you want other people to further help you, You need to say what kind of data this humongous LUNs are going to store (Streaming media, a large backup for all the desktops with the gory details), what types of hosts -- is it all linux shop or is it heterogenous, network and a lot more detailed input from you. Then there are questions about cooling, UPS, SAN, copper network design, what kind of redundancy and so on and so forth. You give the input, people will perhaps give more detailed answer. Perhaps you consider hiring people from this list for doing the consultancy work this design. There are responsibilites involved with support from vendor, many legal issues, supervision of the work done and (worst nightmare) co-ordination for this whole project with others etc. etc. etc. -- Regards, Rajagopal _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc ILUGC Mailing List Guidelines: http://ilugc.in/mailinglist-guidelines
