When using the IBM host bus adapter device driver based on the.. Upvote if you found this answer helpful or interesting. I might be wrong, not really having any experience with multipathing. We are missing some of the nice features of ALUA, where it more intelligently can switch between paths, but the performance seems to be about the same, so I am going to accept this as it is. Storage Manager Performance Monitor 8.
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You will be able to leave a comment after signing in. After that, we turn our attention to the performance and tuning of various components and features, including numerous guidelines. Jacob Barrett on Dec wihdows, It just breaks ivm completely, and with multipath.
Under load all of our blades flap their active paths and killing overall throughput. Installing the RDAC driver. Install Rdac Driver For Ds. Posted January 21, The takeaway from all of this work is that currently, the combination of XenServer 6.
IBM System Storage DS Series Implementation and Best Practices Guide [Book]
DS Mulgipath Manager multipath device drivers. Until recently we have been using the MPP driver but after the 6. There is no single configuration that will be satisfactory for every application or situation.
And now to go and test if fail-over actually works, by pulling a couple of cables. I have read tons of material about the technologies involved, but the solution escapes me. Then we review the various tools available to simulate workloads and to measure, collect, and analyze performance data. Concepts such as multipathing and path failover are discussed. Could the performance problems be related to something else? Posted August 2, When I have a storage repository added it shows 4 out of 4 paths active in XenCenter.
IBM System Storage DS5000 Series Implementation and Best Practices Guide
DS, series. User needs to navigate to Hardware tab to find Tray tab.
The advantages of ALUA are: At least dmmp and kpartx are installed from rpms of the same name on both CentOS and XenServer, which enables me to check installed versions, and on CentOS they are both version 0. Please sign in to comment You will be able to leave a comment after signing in Sign In Now. The DS has dual controllers and is connected to the XenServers over two different switches, resulting in 4 possible paths from each server to winddows box.
Dell’s Web site is very multkpath on information on this. Then, we offer our guidelines, hints, and tips for the physical installation, cabling, and zoning, using the Storage Manager setup tasks. If I do the same test on one of my XenServer hosts, which does not do ALUA, I also get traffic over those two ports, and the performance is about the same.
Then it should work Upvote if you also have this question or find it interesting. We realize that setting up DS Storage Servers can be a complex task. If the multi-path driver is required, you must install and confi Localization result: Stay ahead with the world’s most comprehensive technology and business learning platform. Mark this reply as best answer, if it answered your question. Preparing the host to install the RDAC driver.