EMC sues former salesman who joined rival Pure Storage

Storage market leader EMC(s emc) is suing a former salesman who joined flash storage rival Pure Storage, according to Universal Hub.

The gist of the suit, filed Monday at the U.S. District Court in Boston, is that Chadwick Johnson took with him “a spreadsheet with 93,000 entries of names, purchase histories, deal values, and other highly specific, confidential, and critical information about EMC customers,” according to the report, which said this is the latest in a series of lawsuits lodged against employees who left for Pure Storage, which just landed a whopping $150 million in VC funding.

EMC is facing an array of smaller rivals pushing all-flash storage or hybrid arrays that combine flash and hard disk storage as it negotiates its own transition, integrating Flash in some of its products. It has also bought expertise in flash with its acquisition of  ExtremeIO XtremIO for $430 million last year.

Litigation is nothing new to Hopkinton, Mass.-based EMC. In 2009,  it sued former exec Dave Donatelli when he left for Hewlett-Packard(s hpq_. The outcome was that Donatelli could not work on HP storage products for at least a year.

Update: In an emailed statement, Pure Storage CEO Scott Dietzen said: “We have a strong policy against use of any third party confidential information that we take seriously, and we actively investigate any allegations around its misuse. Bottom line, we are building a world-class organization that is defined by integrity and transparency.”

Note: this story was updated at 3:33 p.m. PDT with a statement from Pure Storage.