If using a lot of JBOD is LUN striping still useful?

returnofxsan's picture

If I have most of my storage in a configuration where there is one RAID head with a bunch of JBODs attached so they all share a single controller and fibre port, is it still useful to let Xsan stripe across LUNs? If I didn't break the storage into smaller LUNs so Xsan can stripe them, I could be more economical and use RAID-6 with larger LUNs.

xsanguy's picture

Probably not, but depending on your storage you might see slight improvements from chopping it into 2 LUNs or 4. Not much beyond that.

returnofxsan's picture

got it, thanks. I figured it would be that way. I guess 8Gb fibre really reduces the need for LUN striping, at least if 700MB/s is sufficient.