Hi, > Can someone give an insights, if it possible to mixed SSD with HDD? on the OSD. you’ll have more or less four options: - SSDs for the journals of the OSD-process (SSD must be able to perform good on synchronous writes) - an SSD only pool for „high performance“ data - Using SSDs for the primary copy (fast reads), can be combined with the first - Using a cache pool with an SSD-only pool in front of the main disk-pool > How can we speed up the uploading for file for example, as per experience it took around 18mins to load 20Gb images (via glance), in 1Gb network. Or it is just normal? That’s about 20MB/s, for (I guess) sequential writes on a disk only cluster that’s ok. But you can improve that with SSDs, but you have to choose the best option for your setup, depending on the expected workload. greetings Johannes _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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