title: File storage and block storage
body: <p>I came across file storage and block storage and was exploring and based on what I could understand, it is as follows:</p>
  
  <ol>
  <li><p><strong>Block level storage</strong></p>
  
  <p>A. Requires a separate volume and an operating system on which it will be mounted as a separate hard disk and can be used to store raw files.</p>
  
  <p>B. Is used on the server side and for performance over capacity.</p>
  
  <p>C. It has its own backup software, etc.</p>
  
  <p>D. It uses fibre channel and iSCSI communication for access.</p>
  
  <p>E. It has no access to anything inside, it's just blocks of data.</p></li>
  <li><p><strong>File level Storage</strong></p>
  
  <p>A. File level storage does not require a separate OS to operate.</p>
  
  <p>B. It is chosen for capacity over performance.</p>
  
  <p>C. It does not have a separate backup software of its own.</p>
  
  <p>D. It is the the file access system which is done through NAS etc…</p></li>
  </ol>
  
  <p>Based on the above, my questions are:</p>
  
  <ol>
  <li><p>Block level storage questions:</p>
  
  <p>A. Block level storage is just bare metal storage with no access to files, so why does it require a separate OS because OS will also have a file management system, so it will become more of a hyrbrid with both File and block storage options?</p>
  
  <p>B. If the above is true, then are SSD and SATA hard-disks kinds of block storage devices?</p>
  
  <p>C. If the above is true, then block level storage is also present on the user side because of the SSDs and others, why then is it used only on server side?</p>
  
  <p>D. Why is backup software required when we do not have access to any files inside?</p></li>
  <li><p>File level storage questions:</p>
  
  <p>A. How does file storage does not require separate software to operate?</p>
  
  <p>B. When you have have access to files in this and can modify, read and write files, then why is backup software not present?</p>
  
  <p>C. Just like we have finder on Mac OS X, which is also file level storage, wherein we get to manage our files?</p></li>
  </ol>
  
  <p>Please clarify my above questions and let me know where I am wrong.</p>