[ceph-users] Ceph 4Kn Disk Support

Hüseyin ÇOTUK hcotuk at gmail.com
Thu Nov 23 00:55:11 PST 2017


Hello Everyone,

We are considering to buy 4Kn block sized disks to use with Ceph. These 
disks report native 4kB blocks to OS rather than using 512-byte emulated 
4kB sectors.

Are there any known issues about using 4Kn disks with Ceph? Are there 
any recommended mkfs options to use with these disks with XFS? We use 
the following options with 512e sector disks now.

osd_mkfs_options_xfs = -m crc=1,finobt=1 -f -i size=2048

Best regards,

Huseyin



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