Hi, my oi151 based home NAS is approaching a frightening "drive space" level. Right now the data volume is a 4*1TB Raid-Z1, 3 1/2" local disks individually connected to an 8 port LSI 6Gbit controller.
So I can either exchange the disks one by one with autoexpand, use 2-4 TB disks and be happy. This was my original approach. However I am totally unclear about the 512b vs 4Kb issue. What sata disk could I use that is big enough and still uses 512b? I know about the discussion about the upgrade from a 512b based pool to a 4 KB pool but I fail to see a conclusion. Will the autoexpand mechanism upgrade ashift? And what disks do not lie? Is the performance impact significant? So I started to think about option 2. That would be using an external JOBD chassis (4-8 disks) and eSATA. But I would either need a JBOD with 4-8 eSATA connectors (which I am yet to find) or use a JBOD with a "good" expander. I see several cheap sata to esata jbod chassis making use of "port multiplier". Is this referring to a expander backplane and will work with oi, LSI and mpt or mpt_sas? I am aware that this is not the most performant solution but this is a home nas storing tons of pictures and videos only. And I could use the internal disks for backup purposes. Any suggestion for components are greatly appreciated. And before you ask: Currently I have 3TB net. 6 TB net would be the minimum target. 9TB sounds nicer. So if you have 512b HD recommendations with 2/3TB each or a good JBOD suggestion, please let me know! Kind regards, JP
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