Tino Zidore
Dabbler
- Joined
- Nov 23, 2015
- Messages
- 30
Hi
I have build this system:
2x E5-2640 v3 Intel 8 Core Xeon 2.60GHz
Supermicro X10DRi-T, Dual Intel 10GbE LAN,16 Dimm Slots (upto 1TB RAM), On Board Graphics, On Board SATA RAID 0,1, IPMI & Remote KVM
8x 16GB 2133MHz DDR4 ECC Registered DIMM Module
2x Intel 120GB SATA SSD S3500 Enterprise Series Drive For Operating System
LSI 9300-8i Host Bus Adaptor
5 x 1TB Samsung 850 PRO
I have made a striped raid of the Samsung SSD disks, which would get be about 2500 MB/s, teoretically
When I run iperf I have full throughput:
When I test the internal dd test:
I have made a SMB share(SMB2_10) and when I connect I get something completely different:
About 720 MB/s for write and about 160 MB/s read
Can anyone tell why this is? Shouldn't it be possible to get higher SMB rates?
I have build this system:
2x E5-2640 v3 Intel 8 Core Xeon 2.60GHz
Supermicro X10DRi-T, Dual Intel 10GbE LAN,16 Dimm Slots (upto 1TB RAM), On Board Graphics, On Board SATA RAID 0,1, IPMI & Remote KVM
8x 16GB 2133MHz DDR4 ECC Registered DIMM Module
2x Intel 120GB SATA SSD S3500 Enterprise Series Drive For Operating System
LSI 9300-8i Host Bus Adaptor
5 x 1TB Samsung 850 PRO
I have made a striped raid of the Samsung SSD disks, which would get be about 2500 MB/s, teoretically
When I run iperf I have full throughput:
[ 4] 0.0-10.0 sec 9526 MBytes 953 MBytes/sec
When I test the internal dd test:
root@raw ~]# dd if=/dev/zero of=/mnt/XXXX/YYYY/largefile02 bs=512K
count=100000
100000+0 records in
100000+0 records out
52428800000 bytes transferred in 13.833011 secs (3790122073 bytes/sec) (3.52983 GB/s)
I have made a SMB share(SMB2_10) and when I connect I get something completely different:
About 720 MB/s for write and about 160 MB/s read
Can anyone tell why this is? Shouldn't it be possible to get higher SMB rates?