A PC Crash Has No Effect On An Email System

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Commenting on IRS Knew Lerner Emails Were ‘Missing’ From Computers, So Where Are The Paper Copies?,
ProgHunter says:
June 18, 2014
As a senior storage engineer, working for the largest commercial storage vendor, I am quite familiar with how corporations and government agencies (like Federal Systems) roll out servers and storage systems for their IT systems. A large single enterprise grade storage system has up to 2048 drives in it, with multiple levels of hardware failover. Most users will use RAID-6 (dual redundancy) for their email (usually Exchange Server) volumes. They will also employ the standard complex data replication methods to create multiple levels of backups on secondary storage systems.
Email is NOT located on desktop PCs, so a PC crash has no effect on the email system. There are hundreds (even thousands) of users per email database (Exchange will have up to 16 Database Availability Groups, each with 2 servers and many dozens of databases). An entire database in a DAG would have to crash to take out the emails of a department, but it would typically affect hundreds of users. The crashed database could easily be rebuilt (up to a certain point of time since the last snapshot) and get it up again. So this is just another complete lie by the far left progressives offered to those who know nothing about enterprise level computing.
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