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Le 19/06/2018 à 09:02, Dan van der Ster
a écrit :
The storage arrays are Nexsan E60 arrays having two active-active redundant controllers, 60 3 TB disk drives. The disk drives are organized into six 8+2 Raid 6 LUNs of 24 TB each.This is not the ideal Ceph hardware. Ceph is designed to use disks directly -- JBODs. All redundancy is handled at the RADOS level, so you can happily save lots of cash on your servers. I suggest reading through the various Ceph hardware recommendations that you can find via Google. Hi, Just on this point, sure that RAID6 is a bad configuration for using with ceph but to use disks "directly" there is JBOD but also the hardware RAID0 configuration (depending on the SAS controler), right ? rv
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