How do I configure Cisco DCNM so Putty starts when I select to go to the command line of a switch?
If you right click on a switch in the overview section in DCNM, you can go to the command line of that switch, but how do you change the default CLI SSH into Putty (or another telnet / SSH capable tool)?
A quick heads-up this time about building your own lab environment
Sometimes you just want to run a VNX, Avamar, PowerPath, Data Domain or Isilon as a virtual machine to see how things work, or to write work instructions. And EMC offers a lot of these virtual appliances for free!
Take a look at these:
I usually don’t like to make too much of a fuzz about free giveaways, but we all need RDP, telnet and SSH clients and this one is worth the extra effort. Try it! So far I like it very much.
You can apply for an activation code on http://www.royalapplications.com/ts/nfr/.
vExperts, MVPs, Cisco Champions, EMC Elect and CTPs can request a free Royal TS/X NFR license! You need to prove in some way that you are one of those community experts, so they can verify and you’ll get an email with your own key!
If you have questions, you can reach out to @royaltsapp on Twitter.
When Windows 2012 issues Trim or Unmap commands to thin LUNs on a VNX, the Storage Processor response times can increase or may initiate a bugcheck.
As part of disk operations to reclaim free space from thin LUNs, Windows 2012 Server can issue large numbers of the SCSI command 0x9E/0x12 (Service Action/Get LBA Status). This SCSI command results in what is called a “DESCRIBE_EXTENTS” I/O on the VNX Storage Processor (SP.) These commands are used as part of the Trim/Unmap process to see if each logical block address (LBA) that has been freed up on the host’s file system is allocated on the VNX thin LUN. The host would then issue Unmap SCSI commands to shrink the allocated space in the thin LUN, thus freeing up blocks that were no longer in use in the file system. RecoverPoint also issues these same SCSI commands when the Thin LUN Extender mechanism is enabled, which can cause similar performance issues. See knowledge base article KB174052 for more information about the RecoverPoint variation of this issue and how to prevent it.
Converting EMC SPcollect files into a readable Excel spreadsheet can be done by a js script named “ArrayConfigToXLS.js”. When you install USM (Unisphere Service Manager) a folder called C:\EMC will be created (or on another location since you can specify where this will be created). In that folder a sub-folder called “repository” exists and one of the files you’ll find there is “ArrayConfigToXLS.js”.
Take one of the two SPcollect files (Clariion or VNX), open the zip file and look for the file CKM[serial]SP[A_or_B]_[date]_[time]_[some_number]_sus.zip and open that zip file. Look for the file called “SPA_arrayconfig.xml”; sort on extension and pick that xml, that’s easier, since it will be the only xml there.
Copy that xml to c:\EMC\repository, open a CLI (e.g. CMD.exe) and type:
cscript ArrayConfigToXLS.js SPA_arrayconfig.xml SPA_arrayconfig.xls
The “script” will allow you to run the “js” script and the outcome is that an XLS will be created. Now open the XLS in your favorite spreadsheet application and you’ll find the configuration of your EMC array!
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