Hi, 2010/9/9 geoffrey mendelson <geoffreymendel...@gmail.com>
> > On Sep 9, 2010, at 6:35 PM, Hetz Ben Hamo wrote: > > >> I'm planning to add some big storage solution to my VPS business. I did >> some checking and calculated the costs, and figured out that if I want to >> have a decent 12TB solution NAS box, it would be best if I would roll my >> own. (12 TB before all the RAID stuff, after that it would lot less). All >> other solutions are very expensive (example: IBM EXP 3000 costs here 6K nis >> without a single hard disk). >> >> > The question you should be asking yourself, IMHO, is what can I buy that > will be as reliable as a commerical, "industrial grade" server? Not looking for industrial grade one. > > I'm planning to use hardware based RAID card, minimal Linux distribution >> and have some offers like iSCSI, NFS, CIFS - the usual suspects. >> >> My question is: since I'll use hardware RAID card, which processor and how >> much RAM should I put in such a machine? Xeon is overkill IIRC. >> > > For example, a system which costs under 900 NIS would do the job. You can > get them from Ivory or KSP. They have a dual core ATOM processor, > one PCI slot and one DDR2 memory slot. The power supply is not very big, > but it will power a bunch of 5400 rpm "green" disks. > This storage will be mainly used for backups. If someone wants to do a colocation to my rack, I want to give him a bonus, something that you can't find today with my competitors: I want to give him 50-100GB for storage. You'll get an NFS/CIFS/iSCSI and you mount it to your machine and use it for your backup/rsync/whatever. By comparison, when you colocate a server to Netvision's farm, you get ... 5GB backup space.. yippee.. > How well will it work? How long will it last? Will it be fast enough? > "Fast" doesn't matter much when you're doing backups or storing some temporary stuff, does it really matter when it take 20 seconds instead of 10 when you're doing rsync? I don't think so.. > And the "killer" question, how much will it cost to replace, in the value > of downtime, your time to replace it, bad will among your customers, etc? > Really depends. I'm not planning to fully use all the disks, some will be disconnected or out of the RAID, perhaps I'll put a redundant PSU. Hetz > Geoff. > > -- > Geoffrey S. Mendelson, N3OWJ/4X1GM > To help restaurants, as part of the "stimulus package", everyone must order > dessert. As part of the socialized health plan, you are forbidden to eat it. > :-) > > > > > > > > -- my blog (hebrew): http://benhamo.org Skype: heunique MSN: hetz-b...@benhamo.org
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