<div><div>Dear GlusterFS experts,</div><div> </div><div>I would like to have an advice (or more) from you.</div><div> </div><div>Currently, I have a Qnap-419 (four disk) storage at home running in RAID5, this allows me for one disk error (home storage project).</div><div><br />I would like to replace this storage with an another solution (also to overcome storage bandwith limitation). Originally, I planned an ITX board with several SATA ports and 4-6 HDD that I can extend later, so there should be plenty number of SATA ports (also room for HDDs in the case). Also the possibility have to be supported by the underlying filesystem.</div><div>I found, that ZFS could do the trick. Also stripe sets are available. Since a year or two, the stripe sets can also be extended. So in my case, when there is a demand for more storage I can simply add new disk(s) (1 or two) to the set and rebuild the stripe set (possibly offline), then I will have some more space for my files without addin
g additional volume or establish a new server.</div><div> </div><div>A few days ago, I figured out, that a different approach would do it better and also can be more failure tolerant: like the cloud storage.<br />So my plan is changed to have small servers with storage (1 disk per server). Than I started to search systems that fulfil my criteria.<br />Unfortunately, I found only GlusterFS that might be ok for this purpose, since I do not want to have separete metadata server.</div><div> </div><div>Main conditions:<br /> - working like stripe sets, so unit failures will not cause data loss (1 or two server failures are allowed)<br /> - scalable, and therefore<br /> - can be extended with one (or maybe two) server at a time (due to low budget)<br /> - cheap nodes (with 1-2GB of RAM) able to handle the task (like Rpi, Odroid XU4 or even HP T610)<br /> <br />As I read a lot about GlusterFS, I recetly concluded that this might also not be possible
with this FS.<br />At the beginning I thoug!
ht, that I create 2+2 disperse volume (for optimal sector size) that I can later extend to 4+2, even later 6+2 and continue....</div><div> </div><div>Now the question: Can I achieve this with GlusterFS? How? What configuration I must choose?</div><div> </div><div>I am looking forward for advices or solutions with this tool.</div><div>Regards,<br />Alex</div><div> </div></div>