I'm going to be in Las Vegas from Feb 22 until Feb 27 to visit the IBM Pulse conference.
This is a pretty good time to meet and talk about BVQ business opportunities.
Or do some technical deep dives into the inner world of SVC or Storwize performance characteristics.
Who ever is interested on meeting - just send me a note.
The BVQ Node / Cache / SAN analysis is well suited to find vulnerabilities and performance bottlenecks in SVC / Storwize or in the SAN.
We offer a webex on February 10 in English
CET 17:00, EST 11 am, PST 8 am, MSK 8pm
Duration 1 hour
Webex on February 13 in German
Duration 1 hour
To enroll please use this link
Please do not forgett to enter the following codes into the... [More]
The BVQ use cases and experiences page has been re designed
you will now find all information grouped by themes
BVQ use cases and experiences
BVQ usage concepts
Saving Costs with BVQ, ROI related documents
BVQ VMWare Integration Package
BVQ Analysis: Performance bottleneck analysis
BVQ Analysis: SVC Storwize nodes, global cache, CPU load
BVQ Analysis: SAN, node ports, buffer credits
BVQ Analysis: Managed Disk Group Cache
BVQ Analysis: Compression,... [More]
We offer a series of different workshops which will show you how to use BVQ for performance analysis.
The workshops will be performed by using Cisco Webex.
After you have enrolled for a workshop, you will receive an e-mail with all information needed to participate .
Please enroll here with your name and e-mail address:
Please use this link to enroll
(select "other" and enter the sessions code into the comment field)
The three main steps for a performance status (60 min)
This is new for the upcoming Version 3 from BVQ (Nov 13)
BVQ can now scan on 1 minutes interval. It is incredible who much detail becomes uncovered when you scan on 1 minute.
Why does this matter?
A smaller scan interval will allow even deeper looks into the system.
The possibility to change these settings on the fly without any interrupt supports normal ands deep analysis mode.
To switch from 5 minutes to 1 minute is easy and does not need any special activity!
You just change the timing of the statistics... [More]
This was a very exiting and successful week!
This is a customer success story where BVQ helped to fix performance issues in a Red Hat Enterprise Virtualization (RHEV) environment with IBM Storwize V7000 storage. The Red Hat environment is set up with six storage volumes which have been thin provisioned and compressed to optimize the capacity efficiency.
Unacceptable performance of the RHEV
The situation in the beginning of the project was that the performance of the RHEV environment was reduced due... [More]
A very useful method is the analytical storage planning based on measurement data. In the following example, the MS Exchange-area of a company was analyzed to determine the required supply power.
see attached picture
Fig 2: measured values allow a very precise planning of power consumption and thereby reduce purchasing costs and operating costs. Another positive effect is the safety which results from this planning. These measurements show exactly how much power is needed for an environment. If this demand is covered by the... [More]
Overview: cost savings potential with BVQ
There are several areas in which BVQ can help to reduce procurement costs, operating costs and operating risks.
This document describes these areas where BVQ helps to save costs.
Reduction of purchasing costs
With measurements and appropriate presentation of results in the form of treemaps associated with IO density colorations, BVQ provides an excellent base to obtain a better assessment about the required amount of performance. In most cases this leads... [More]
In this customer example we had the opportunity that two identical managed disk groups with easy tier did perform completely different.
The Target was to understand why and to find ways to improve the situation.
Both managed disk groups have the same technical setup.
V7000 -1 (Cluster 1) we found that the improvements which have been expected by Easy Tier have not been achieved
V7000- 2 (Cluster 2) showed much better results for Easy Tier
Click here to open the analysis
I just found this vmware knowledge base article in the web
Slow performance during Storage vMotion, Clone, and Snapshot consolidation operations in various storage systems (2007723)
I think one of the solutions to this problem can be found in the behavior that we have described here
The bad thing for this is - you will probably not see this problem when you cannot go deeper into the system.
Performance Analysis VAAI undercover write operations
Performance Bottleneck Analysis- VAAI undercover... [More]
I'm really excited about this next option in our mdisk group analysis section. It is the first time that we can analyse into the internal SVC queues down to the storage system.
With this new option we get a much better view of the performance problems of the storage system.
It is obvious that this backend storage system was in deep performance troubles from 5 am to 6:30 am.
Have a look to this:
The picture belongs to this whitepaper
Sometimes dead links happen - we had 2 dead links on the page which have been fixed right now!
The german version of the article was missing.
The external connection to searchstorage was broken rue to the fact that they have been renamed to datacenter.insider.de - I still have an issue because the first half ot the article is still mjissing. I am in contact with them to fix this.
BVQ Use Case: Performance Bottleneck Analysis on IBM SVC and IBM Storwize
With using min and max cache fullness values one can better analysis what is going on in the SVC or Storwize cache. This is espacially helpful when you want to find the root causes of performance bottleneck.
This document belongs to the BVQ Use Case Performance Analysis
I really like the idea of having a turbo option on the Storwize V3700, to quickly solve performance restrictions.
But I also learned that many performance issues cannot be solved with only adding more performance power to the system. When you do so then it might happen that you see some improvements but you will be in the same situation again after some time.
Whats coming next? Next size storage system?
So I think it makes sense to better first analyze and find the reason for the performance issue. Even more, when I... [More]
In this example we will see that the usage of the VAAI is somehow hidden from ordinary monitoring methods because the VAAI data streams are not visible on the top SCSI layers. So it might look like a system reacts overloaded without any reason but the reason can be uncovered when you look deeper into the system when your analysis tool is tailored good enough to SVC/Storwize and enables you to see needed the performance indicators.
You find more detail here : full document