*Kewl! I like it. Thanks for the URL. I'm keeping that in mind if I ever need something that big. :)*
* * *--- Dan* On Sat, Mar 16, 2013 at 2:47 PM, S. Dale Morrey <[email protected]>wrote: > Just curious but have you considered something like this... > http://blog.backblaze.com/category/storage-pod/ > > On Sat, Mar 16, 2013 at 4:04 AM, Dan Egli <[email protected]> wrote: > >> For a home server I recommend RAID1 or RAID10 over RAID6. > > > > Really? I guess between RAID6 and RAID10 it's not much different, but > what > > about someone who has say six or eight disks in the server? I'm curious > why > > you'd still recommend RAID10? Hypothetically speaking, let's assume I > > wanted to have a server big enough to hold 1 year of downloaded data from > > the net, downloading at approx 5Mbps (with TCP overhead, that comes to > > approx 1 MB every 2 seconds) 24/7/365. That's nearly 16 TB. A RAID6 could > > handle that with 6 drives, 4TB each. A raid10 would need 8 drives. I > admit > > each is possible to throw into a full tower case, but why spend the extra > > money on two more drives, making the two raid10s? I am genuinely curious. > > > > > > > > > > > >> What kind of chassis? Most good chassis will do hardware RAID and > > > >> export the volumes. Though there are some bare disk arrays that simply > > > >> export devices as SCSI LUNs. Either way you need a chassis with a power > > > >> supply. > > > > > > > > Well, that's not really an issue because I finally realized I could break > > my boss down by using some basic math. I showed him using basic > > multiplication how long it would take to fill the 120TB array he wanted > > (more than eight years to reach 25% capacity) and he FINALLY agreed that > we > > could do it much cheaper and easier by building a full tower PC and > filling > > it with Hard Disk Drives. So we're going to order the parts soon. Thank > > goodness for that. I'm still not sure which chassis he wanted. I think he > > was thinking of going to a company like Aberdeen or someone. I have > > insufficent experience to state whether or not that was a good idea, but > > thankfully it's a moot point now. I imagine we can fit about 10 disks in > a > > large case (I have to do some research on cases to find the one that will > > let us hold as many hard disks as we can), and make a raid out of them. > > > > > > > > > > > >> I'm not sure how I feel about ZFS... ZFS is not a supported Linux file > > > >> system. It's third-party and licensing conflicts means you have to > > > >> compile the modules yourself everytime a kernel is updated. Though > > > >> this is largely automated these days with the dkms system that many > > > >> distros use. And maybe there are binary repositories. > > > > > > > >> I feel that ZFS in and of itself is stable and production-ready (I used > > > >> it for years on Solaris without issue). But I'm not sure of the status > > > >> of the zfs-on-linux project. > > > > > > > > So what would you use? Be aware that he's REALLY keen on using a file > > system that includes journaling and data-deduplication. I don't know how > > easy it's going to be to change his mind. It took near a week of > arguments > > before I got him to abandon the rackmount server idea. I'm well aware of > > many of the advantages of file systems like Ext4 and JFS. But try > > convincing my boss on that. He's one of those people who hears about some > > new idea, likes it, and wants it implemented, despite not knowing how it > > works internally or what would be involved in the implementation. > > > > > > > >> I get the impression your boss thinks the large disk array idea is on > the > > same > > > >> order of complexity as throwing disks in a box and setting up a software > > RAID. > > > > > > > > EXACTLY. That's PRECISELY what he thought. He's all "Linux supports > > software Raid! You've shown yourself that it can handle the number of > > drives in the server that we'll have. So why not just throw the drives > in, > > connect them to the various controller cables, and build the raid?" and > > didn't want to listen to ideas that it would likely be MUCH more > > complicated than that. But now that he's finally agreed to a full tower I > > just have to be sure we order either a motherboard with enough controller > > ports on it, or order a separate controller card to handle whatever the > > motherboard can't. > > > > > > > > What kind of an interface would you guys recommend? Now that he's > resigned > > to a PC tower case he's thinking standard SATA. While I'm sure that would > > work, is there a better idea? > > > > > > Thanks! > > > > /* > > PLUG: http://plug.org, #utah on irc.freenode.net > > Unsubscribe: http://plug.org/mailman/options/plug > > Don't fear the penguin. > > */ > > /* > PLUG: http://plug.org, #utah on irc.freenode.net > Unsubscribe: http://plug.org/mailman/options/plug > Don't fear the penguin. > */ > /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
