Hi, Wido den Hollander >> Good day! Please help me solve the problem. There are the following scheme : >> Server ESXi with 1Gb NICs. it has local store store2Tb and two isci storage >> connected to the second server . >> The second server supermicro: two 1TB hdd (lsi 9261-8i with battery), 8 CPU >> cores, 32 GB RAM and 2 1Gb NICs . On /dev/sda installed ubuntu 12 and >> ceph-emperor. /dev/sdb disk placed under osd.0.
>How do you do journaling? When i create osd i see: NFO:ceph-disk:Will colocate journal with data on /dev/sdb >Have you tried TGT instead? I tried tgt (with --bstype rbd) and result same. >Have you also tried to run a rados benchmark? (rados bench) rados bench -p my_pool 300 write Total time run: 30.821284 Total writes made: 371 Write size: 4194304 Bandwidth (MB/sec): 48.149 Stddev Bandwidth: 38.1729 Max bandwidth (MB/sec): 116 Min bandwidth (MB/sec): 0 Average Latency: 1.31857 Stddev Latency: 1.6014 Max latency: 9.2685 Min latency: 0.013897 >Also, be aware that Ceph excels in it's parallel performance. You >shouldn't look at the performance of a single "LUN" or RBD image that >much, it's much more interesting to see the aggegrated performance of 10 >or maybe 100 "LUNs" together. I dont understand how do it. I must create 10 LUN and 10 iscsi storage on esxi, and then test migrate 10 VM from local store to iscsi storage? Thanks! Vitaliy _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
