IBM Storwize V7000.                                                           part II                                     ...
The load is in a production environment.        So, what we have - IBM Storwize V7000 (1 +9 enclosures), where data is dis...
The recorded peak load ~ 106,000 iops, where:- Used only thin-provisioned volumes- Were active 12x FlashCopy mapping (snap...
Questions?                   Oleg Korol               it-expert@ukr.nethttp://ua.linkedin.com/pub/oleg-korol/26/920/716
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IBM Storwize V7000 Ultimate Performance Eng

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IBM Storwize V7000 Ultimate Performance Eng

  1. 1. IBM Storwize V7000. part II Introduction I had already tested the IBM Storwize V7000, but in a configuration that is far from the maximum. In synthetic test of SPC-1, IBM for Storwize V7000 was able to demonstrate the result in 53K iops withaverage response time of 11 ms (you can remember these two numbers - later they will be compared with anythingelse). It took evenly distribute the load on 240xHDD SFF 10K, gathered in the raid group R10. Is it possible to achieve similar results to real-world business applications? (without using SSD)
  2. 2. The load is in a production environment. So, what we have - IBM Storwize V7000 (1 +9 enclosures), where data is distributed across three disk pools(Raid group - both R10 and R6), total used 208hHDD SFF 10K (that is slightly less than the used IBM in the aboveSPC-1 test). Load which is shown below*, not the result of a synthetic test - is the load on the database for realbusiness applications (mix OLTP/OLAP). * load profile is different from the SPC-1 Disk total KB/s Disk Read KB/s Disk Write KB/s IO/sec 1200 100000 Thousands 90000 1000 80000 800 70000 60000 KB/sec IO/sec 600 50000 40000 400 30000 200 20000 10000 0 0 08:45 09:25 16:25 09:05 09:45 10:05 10:25 10:45 11:05 11:25 11:45 12:05 12:25 12:45 13:05 13:25 13:45 14:05 14:25 14:45 15:05 15:25 15:45 16:05 16:45 17:05 17:25 17:45 18:05 18:25 18:45 Disk Service Time msec/xfer hdisk6 hdisk5 hdisk4 hdisk7 hdisk8 hdisk1 hdisk2 hdisk3 hdisk21 hdisk20 hdisk18 hdisk0 hdisk19 hdisk9 hdisk10 10 8 6 4 2 0 09:25 14:45 18:25 08:45 09:05 09:45 10:05 10:25 10:45 11:05 11:25 11:45 12:05 12:25 12:45 13:05 13:25 13:45 14:05 14:25 15:05 15:25 15:45 16:05 16:25 16:45 17:05 17:25 17:45 18:05 18:45 As seen in the charts above, managed to get ~ 90 000 iops with an average response time of ~ 5ms. Which Ithink is quite a good result. But wait, theres only one of dozens of hosts, the data of which are located at this IBMStorwize V7000. The rest of the server will not create such a significant load on the storage system, but still. Belowpresents the total utilization storage discussed.
  3. 3. The recorded peak load ~ 106,000 iops, where:- Used only thin-provisioned volumes- Were active 12x FlashCopy mapping (snapshots)The load on the CPU in this case was, as expected, it is significant.
  4. 4. Questions? Oleg Korol it-expert@ukr.nethttp://ua.linkedin.com/pub/oleg-korol/26/920/716

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