Hello, If these 4 virtual drives are then put together to get one big volume, it will goes as the slower one. I would put the LSI to 64K to get same size everywhere anyway, even if it's transparent/hidden from an OS perspective
Cordialement, Mathieu CHATEAU http://www.lotp.fr 2015-07-12 11:16 GMT+02:00 Geoffrey Letessier <[email protected]>: > Dear all, > > Because I’m currently reconstructing all my GlusterFS volumes, I just > noticed that all of my RAID virtual drives did not necessarily have the > same stripe size and I wonder whether it would be better to > reconstruct/rebuild these virtual drives with the same stripe size ... What > do you recommend ? > > Actually, 2 virtual drives of 4 have a stripe size set to 64KB (Dell Perc > H8xx RAID controller default settings) and the 2 left are set to 256KB (LSI > MegaRAID 9286-8e default settings). With iozone tests, i notice Dell Perc > VD have better results than LSI ones. (~1.3-4GBs vs ~1.2GBs) and I wonder > if these parameters are not in cause... > > It’s very urgent for me to know what i have to do because I need to > reconstruct and set all my volumes and back transfert roughly 40TBs in > distributed and replicated volumes as quickly as possible… > > Thanks by advance, > Geoffrey > ------------------------------------------------------ > Geoffrey Letessier > Responsable informatique & ingénieur système > UPR 9080 - CNRS - Laboratoire de Biochimie Théorique > Institut de Biologie Physico-Chimique > 13, rue Pierre et Marie Curie - 75005 Paris > Tel: 01 58 41 50 93 - eMail: [email protected] > > _______________________________________________ > Gluster-users mailing list > [email protected] > http://www.gluster.org/mailman/listinfo/gluster-users >
_______________________________________________ Gluster-users mailing list [email protected] http://www.gluster.org/mailman/listinfo/gluster-users
