HPE Storage Users Group

Hi All,

Good day..

Can anybody please tell me how can we do capacity report in HP 3Par 10400.

Which size (Total used, Total reserved, Total allocated) should be considered while doing this report?

Also is there any Tool available to do this analysis.

Thanks in advance.

Regards,
KK

System Reporter is a good tool, otherwise there are CLI commands you can run and then pull into Excel to run some numbers.

Thanks for the reply

But which space should be considered .. ???

And also is there any possible to get the Forecast report of the same.

Thanks in advance

Regards,
KK

In system reporter typically I would track PD space (RAW) so the daily growth reports are good for this as you don't know which CPG will grow at what rate and each will have differing consumption policies based on their raid type, but it depends what you're trying to identify. Also you can use the excel client or export the data from system reporter directly to a CSV and run some forecasting / trending from within excel. Once you get a feel for what you're trying to understand there's a wealth of data you can report on and extract, just remember 3PAR grows dynamically so other than raw free space per tier there are no absolutes.

Total used - This is the data plus metadata you have written to disk.
Total reserved - This is the above written plus any reserved space allocated by the array.
Total allocated - This is the total of the above two.

By just running the following you can quickly see allocated plus free space

CLI% showsys -space
----------System Capacity (MB)----------
Total Capacity : 363069440
Allocated : 37643264
Volumes : 25751552
.....................................................................
Free : 322648064
Initialized : 322648064
Uninitialized : 0
Unavailable : 0
Failed : 2778112

The GUI typically shows GIB’s and CLI MB’s so to reconcile the two divide the MB’s by 1024.
Total Capacity 363069440 MB / 1024 = 354,560 GIB / 1024 = 346.25 TiB
Free Capacity 322648064 MB / 1024 = 315,086 GiB / 1024 = 307.30 TiB
If the Free uninitialized value is >0 it’s likely a large amount of data has been deleted and the blocks are in the process of being zero’d out before being returned to the system free pool.

This should all become a lot more intuitive in the new SSMC GUI,

Trending in Excel
http://www.cimaglobal.com/Thought-leade ... -in-Excel/

System Reporter Technical Whitepaper
http://h20195.www2.hp.com/v2/GetPDF.asp ... 003ENW.pdf

System Reporter User Guide - Page 50 onwards covers excel client & the different reports
http://h20628.www2.hp.com/km-ext/kmcsdi ... 7248-2.pdf

"Reserved" is better then "used", because it contains additional capacity reserved for future use of this vv or whatever, and therefore is no longer considered "free".

If your CPGs don't overlap on the PDs, "showspace -cpg <yourcpg>" shows the amount of additional user data a system can store as "estimated LD Free". But be aware that this number lies if you have more than one CPG on the same set of PDs!

_________________
When all else fails, read the instructions.

Hi,

Thanks for the replies.

Is there any specific tool to get the Capacity planing/forecast.

I heard people use R3T tool.

Regards,
KK

R3T is a HP only internal tool. As above for now you can export the data to a .CSV file and forecast in MS Excel.

Here's a quick example of trending with exported data.

1. Go to the Performance and Reports section of IMC
2. Select New Report, Physical Disks, Space, fill in the period you're interested in and generate the report.
3. Click the Export data button and select CSV Format & File to save the data to a CSV.
4. Open up Excel and load the file you just saved.
5. Select the data you're interested in e.g the "Normal Used OK" column, these are chunklets BTW.
6. Now insert a new line chart
7. Once you have the chart, right click the "Normal Used OK" line and select Add Trendline
8. Select the trendline type and the number of periods you would like to look forward e.g 90 days

Takes about 2 minutes in all and you can save the report along the way for reuse on your next run.

Here's what it looks like https://db.tt/RDsRRXeV the blue line being the data and the red line being your forecasted growth. You can play about exporting or graphing other values to meet your requirement, the above is intended as a quick example. Just keep in mind the forecast is only as good as the data you supply, so you'll want to look at a relatively steady state over a long period of time.

JohnMH,

Do you have any screen of R3T ?

I coded an application based on S.T.A.T.S. files for the 200+ arrays we maintain.
Last November Christophe Dubois, the team leader of the guy who coded R3T, went there but did not show any screen of R3T. He told us that was a wonderful product but... Nothing else ^^

R3T ("Raouls 3PAR Tools") will be available to see in the Pre-Sales Suite at the ETSS event in Barcelona 1st week of February 2015. It is also due to be available to see at the next MAP event in the US, April/May 2015. I will be presenting R3T at these events, so come and see me for more details.

Currently R3T is an HP Internal tool, however any data, screen shots, charts, historical information that it produces pertaining to a specific customer or StoreServ may be shared with that customer or the owner of the StoreServ in question at the discretion of HP. Therefore I encourage customers and partners to ask their HP representative about R3T.

...Raoul

Nice to hear about you Raoul

I'll be in Barcelona from 3rd to 6th of february.
Christophe talked so much of your wonderful tool that... Well, in some way, i'm a bit envious ^^
And curious of what your tool did and the way i could improve "mine"...

How could i find you in Barcelona ?
Maybe you are french too ?