Q500-P20 performance report
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1 Q500-P20 performance report Version 0.1 Nov 2013
2 Table of Contents Revision History... 2 Table of Contents Test bed Hardware Software Storage target settings Test matrix Single controller - Sequential RAID RAID RAID 5 degrade RAID 5 rebuild RAID 5 comparison RAID RAID 6 degrade RAID 6 rebuild RAID 6 comparison Dual controllers Sequential RAID RAID RAID RAID 6 degrade... 錯誤! 尚未定義書籤 RAID 6 rebuild... 錯誤! 尚未定義書籤 3
3 1. Test bed The testing environment includes host servers, HBA cards, HDDs, and switches. All performance cases conducted here are on Windows platform. There are no Linux, Unix, or Mac platform numbers. Details are listed below. 1.1 Hardware Host servers There are total 4 servers. All are ASUS TS500-E6-PS4 Model name Processor(s) Memory On-board LAN ASUS TS500-E6-PS4 CPU:Intel Xeon E GHz ASUS 2GB PC (REG, ECC) with ELPIDA Intel 82574L Gigabit Network Connection iscsi HBA cards Device name Driver version Intel X520, PCI-e, 10 Gb/s, 2 ports Hard drives Seagate Cheetah 3.5 SAS 15K.5 ST500NM0001 x24 10GbE switch Dell PowerConnect Software Operating system used on host servers. Windows Server 2008 Datacenter 32bit with service pack 2 Benchmark tools o Iometer 2006,07,27 o IOmeter settings Cache hit : max disk size = None cache hit : max disk size = 0 # of outstanding I/Os : 64 4
4 Ramp up time : 5 seconds Run time : 25 seconds 1.3 Storage target settings RAID controller : Dual controller Q500-P20-D424 Firmware version : 1.0.0_ _1600 Host interfaces : o Single controller : 2x 10GbE iscsi + 2x 1GbE iscsi o Dual controller : 4x 10GbE iscsi + 4x 1GbE iscsi Stripe height (KBytes): 64KB Block size : 512 Bytes Write back or write through : Write back Best configuration suggestion As a general rule of thumb, try to assign dedicated RAID group (RG) to each host interface port. This will yield the best performance. If you assign each RG to several host interface ports, this usually will result in not so good performance. 5
5 2. Test matrix The following is the test configuration used in this report. Sequential Random RAID 0 O(single/dual) O(single) RAID 5 O(single/dual) O(single) Degrade O(single) X Rebuild O(single) X RAID 6 O(single/dual) O(single) Degrade O(single) X Rebuild O(single) X 6
6 3. Single controller - Sequential 3.1 RAID 0 Host servers : One server # of host interface : 1x 10GbE iscsi 1x RGs. Each RG has one VD. Each RG has 12x HDDs. RAID 0 sequential read/write CH NCH Throughput (MBytes/sec) CH NCH CH NCH Throughput (Mbytes/sec) CH NCH Host servers : Two servers # of host interface : 2x 10GbE iscsi 2x RGs. Each RG has one VD. Each RG has 12x HDDs. RAID 0 sequential read/write 7
7 CH NCH CH NCH CH NCH CH NCH Host servers : Four servers # of host interface : 2x 10GbE iscsi + 2x 1GbE iscsi 4x RGs. Each RG has one VD. Each RG has 6x HDDs. RAID 0 sequential read/write CH NCH CH NCH
8 CH NCH CH NCH RAID 5 Host servers : One server # of host interface : 1x 10GbE iscsi 1x RGs. Each RG has one VD. Each RG has 12x HDDs. RAID 5 sequential read/write CH NCH CH NCH CH NCH
9 CH NCH Host servers : Four servers # of host interface : 2x 10GbE iscsi + 2x 1GbE iscsi 4x RGs. Each RG has one VD. Each RG has 6x HDDs. RAID 5 sequential read/write CH NCH CH NCH CH NCH CH NCH
10 3.2.1 RAID 5 degrade Host servers : One servers # of host interface : 1x 10GbE iscsi 1x RGs. Each RG has one VD. Each RG has 12x HDDs. Unplug one HDD to make RAID 5 in degraded mode CH NCH CH NCH CH NCH CH NCH RAID 5 rebuild Host servers : One server # of host interface : 1x 10GbE iscsi 1x RGs. Each RG has one VD. Each RG has 12x HDDs. Plug in one new HDD to rebuild RAID 5 parity 11
11 CH NCH CH NCH CH NCH CH NCH RAID 5 comparison We compare RAID 5 performance under the same configuration to show the degrade and rebuild impact on performance. None cache hit numbers are used here. Host servers : One server # of host interface : 1x 10GbE iscsi 1x RGs. Each RG has one VD. Each RG has 12x HDDs. 12
12 3.3 RAID 6 Host servers : One server # of host interface : 1x 10GbE iscsi 1x RGs. Each RG has one VD. Each RG has 12x HDDs. RAID 6 sequential read/write 13
13 CH NCH CH NCH CH NCH CH NCH Host servers : Two server # of host interface : 2x 10GbE iscsi + 2x 1GbE iscsi 4x RGs. Each RG has one VD. Each RG has 6x HDDs. RAID 6 sequential read/write CH NCH CH NCH
14 CH NCH CH NCH RAID 6 degrade Host servers : One servers # of host interface : 1x 10GbE iscsi 1x RGs. Each RG has one VD. Each RG has 12x HDDs. Unplug two HDDs to make RAID 6 in degraded mode CH NCH CH NCH CH NCH
15 CH NCH RAID 6 rebuild Host servers : One server # of host interface : 1x 10GbE iscsi 1x RGs. Each RG has one VD. Each RG has 12x HDDs. Unplug two HDDs to make RAID 6 in degraded mode CH NCH CH NCH CH NCH CH NCH
16 3.3.3 RAID 6 comparison We compare RAID 6 performance under the same configuration to show the degrade and rebuild impact on performance. None cache hit numbers are used here. 17
17 4. Dual controllers Sequential 4.1 RAID 0 Host servers : Two servers # of host interface : 4x 10GbE iscsi 4x RGs. Each RG has one VD. Each RG has 6x HDDs. Jumbo frame enabled (3900bytes) RAID 0 sequential read/write CH NCH CH NCH CH NCH CH NCH RAID 5 Host servers : Two servers # of host interface : 4x 10GbE iscsi 4x RGs. Each RG has one VD. Each RG has 6x HDDs. 18
18 Jumbo frame enabled (3900bytes) RAID 0 sequential read/write CH NCH CH NCH CH NCH CH NCH RAID 6 Host servers : Two servers # of host interface : 4x 10GbE iscsi 4x RGs. Each RG has one VD. Each RG has 6x HDDs. Jumbo frame enabled (3900bytes) RAID 0 sequential read/write CH NCH
19 CH NCH CH NCH Throughput CH NCH Single controller - Random Host servers : One server # of host interface : 1x 10GbE iscsi 1x RGs. Each RG has one VD. Each RG has 12x HDDs. RAID 0, 5, 6 random read/write (none cache hit ONLY) RAID RAID RAID RAID RAID RAID
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