A veteran IT professional tells TheBlaze that the IRS’ claim that the agency lost two years’ worth of former IRS official Lois Lerner’s emails is “simply not feasible.”

On Friday, members of Congress revealed that the IRS would not be able to hand over Lerner’s emails to and from other IRS employees from January 2009 to April 2011, possibly due to a “glitch” or “crash.” Lawmakers were seeking the emails as part of their investigation into the IRS targeting scandal.

Norman Cillo, an Army veteran who worked in intelligence and a former program manager at Microsoft, argued it is very difficult to lose emails for good and laid out six reasons why he believes Congress is “being lied to” about the Lerner emails:

1. I believe the government uses Microsoft Exchange for their email servers. They have built-in exchange mail database redundancy. So, unless they did not follow Microsofts recommendations they are telling a falsehood. You can see by the diagram below that if you have three servers in a DAG you have three copies of the database.

Credit: Norman Cillo

Credit: Norman Cillo

2. Every IT organization that I know of has hotswappable disk drives. Every server built since 2000 has them. Meaning that if a single disk goes bad it’s easy to replace.

3. ALL Servers use some form of RAID technology. The only way that data can be totally lost (Meaning difficult to bring back) is if more than a single disk goes before the first bad disk is replaced. In the diagram below you can see that its possible to lose a single disk and still keep the data.

Credit: Norman Cillo

Credit: Norman Cillo

4. If the server crashed (Hardware failure other than disks), then the disks that contain the DATA for the Exchange database is still available because the server hardware and disks are exchangeable. Meaning that if I have another server with the same hardware in it, I can put the disks in and everything should boot right up.

5. All email servers in a professional organization use TAPE backup. Meaning if all the above fails, you can restore the server using the TAPE backups.

6. If they are talking about her local PC, then it’s a simple matter of going to the servers which have the email and getting them from the servers. If the servers have removed the data you can still get them by using the backups of the servers to recover the emails.

However, Cillo, who has been working in IT for roughly 16 years and is currently a consultant for a tech company, said it’s possible the IRS is telling the truth if the federal agency is “totally mismanaged and has the worst IT department ever.”

Other than that, it’s just not “feasible,” he told TheBlaze. “If the IRS’ email server is in such a state that they only have one copy of data and the server crashes and it’s gone, I’ve never heard of such a thing.”

“I don’t know of any email administrator that doesn’t have at least three ways of getting that mail back,” he added. “It’s either on the disks or it’s on a TAPE backup someplace or in an archive server. There are at least three ways the government can get those emails.”

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