2007 Approach: Step 1:


Traditional Tape Restoration


Restore ESI from tape using original backup software.


Data: 8 TB Time: 120 hours1


Step 2: .


Collect 25 custo- dian mailboxes assuming each mailbox is 5GB.


Data: 125 GB Time: 125 hours2 Step 3:


Load mailboxes to review plat- form.


Data: 125 GB Time: 3 hours3


Step 4:


Index ESI, dedupe, query (keyword, date) to cull to relevant data set.


Data: 6.25 GB Time: 1 hour


Total: Time: 249 hours Time: 63.34 hours Time: 43.25 hours Time: 13.22 hours


2008


Direct Index- ing


Index ESI, dedupe, query (keyword, date) to cull to rel- evant data set.


Data: 0 TB Time: 63 hours


Extract relevant ESI from tape.


Extract relevant ESI from tape


Data: 6.25 GB Time: .17 hours


Load to relevant ESI to review plat- form.


Data: 6.25 GB Time: .17 hours


Data: 6.25 GB Time: .08 hours


Load to relevant ESI to review plat- form.


Data: 6.25 GB Time: 17 hours


Data: 6.25 GB Time: .05 hours


Load to relevant ESI to review platform.


Data: 6.25 GB Time: .17 hours


2009


Indexing with Caching


Index ESI, dedupe, query (keyword, date) to cull to rel- evant data set.


Data: 0 TB Time: 43 hours


Extract relevant ESI from tape.


2010


Direct Indexing with Multi-Streaming


Index ESI, dedupe, query (keyword, date) to cull to rel- evant data set.


Data: 0 TB Time: 13 hours


Extract relevant ESI from tape.


1 6 hr/LTO2 tape is based on data from eMag’s website


- How Long Does it Take to Restore a Tape & Elec-


tronic Data Discovery: It’s All About Access 2 5 hours/mailbox or 1GB/hour based on using PowerControls or Xmerge (data from Kroll website and Nor- cross Group) 3 Based on performance numbers of 1TB/day or 41GB/hour from various review platforms.


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