Hi,
has anyone experiences with hp-branded ssds for journaling? Given that everything else is fixed (raid controller, cpu, etc...) and a fixed budget, would it be better to go with more of the cheaper 6G SATA Write intensive drives or should I aim for (then fewer) 12G SAS models? Here are the specs:
HP 6G SATA Write Intensive 200 GB (804639-B21):
- Sequential reads / writes (MB/s): 540 / 300
- Random reads /writes (IOPS): 64,500 / 42,000
- DWPD: 10
HP 12G SAS Mainstream Endurance 200 GB (779164-B21):
- Sequential reads / writes (MB/s): 1,000 / 510
- Random reads /writes (IOPS): 70,000 / 51,000
- DWPD: 10
HP 12G SAS Write Intensive 200 GB (802578-B21):
- Sequential reads / writes (MB/s): 1,000 / 660
- Random reads /writes (IOPS): 106,000 / 83,000
- DWPD: 25
I know that asking does not free me from benchmarking, but maybe someone has a rough estimate?
Best regards
Karsten
_______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
