Hi, 2015-11-04 15:16 GMT+01:00 Christian Balzer <chibi@xxxxxxx>: > On Wed, 4 Nov 2015 12:03:51 +0100 Karsten Heymann wrote: >> I'm currently planning to use dl380 with 26 (24 at the front, two for >> system disks at the back) 2,5"-slots, from which roughly 2/3 are >> intended for osd drives, the rest for system and journal disks. >> > That's a pretty dense configuration, how many nodes do you plan to deploy > initially? Somewhere between 5 and 10 nodes initially. > What network infrastructure? At least 2x 10GB/s Ethernet, probably 4x (2x client-facing, 2x intra-cluster). > Check the archives for previous threads, I would allocate about 2 GHz of > CPU per OSD... That fits with the cpus I chose. >> So 18 spinning drives, 6 SSD (model #1) and two system disks seem to >> be at least a reasonable choice for a setup to start with? >> > Yes. > Note that in my example below the system disks are a RAID10 of the 4 SSDs, > with raw partitions for the journals. Interesting setup. >> 200GB are the smallest enterprise drives HP sells for current server >> generations. >> > Yeah, but when you look at the Intel DC S37xx drives for example, the > older (more parallel) SSDs are actually faster at smaller size then the > new ones. I think I have to stick to what HP offers. Thanks a lot, Karsten _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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