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June 30th, 2008 07:00
Better and faster ediscovery for EmailXtender
I have a single emailxtender server with over 41 millions e-mail messages (7 years of e-mail) with indexes of just over 300GB and a 2TB vault.
Our compliance team are doing more and more discoveries of e-mail with this system and performance of searches is unbearable. The system is about as well tuned and performing about just as good as you can get emailxtender can perform but I need ediscovery searches many 100's of times faster that the system can perform.
That said - does anyone know of any EMC or third party options to run much faster searches on that other system. I am ok with running scaled down PST exports from EmailXtender to another system which would index/search separately and much faster. i.e. export small subsets from EmailXtender to something else and perform searches within that system.
Anyone ever do anything like this?
Our compliance team are doing more and more discoveries of e-mail with this system and performance of searches is unbearable. The system is about as well tuned and performing about just as good as you can get emailxtender can perform but I need ediscovery searches many 100's of times faster that the system can perform.
That said - does anyone know of any EMC or third party options to run much faster searches on that other system. I am ok with running scaled down PST exports from EmailXtender to another system which would index/search separately and much faster. i.e. export small subsets from EmailXtender to something else and perform searches within that system.
Anyone ever do anything like this?
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jskoecher
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July 3rd, 2008 05:00
well my largest index is just over 100GB. Not sure to really add value to your question, since I believe you've tweaked your storage as much as you can. Running searches is heavy on IO, so check this.
Unfortunately, the index cannot be split over different volumes. In Gartner 2008 they write: "Companies looking so search large volumes of data should expect to deploy substantial infrastructure to achive acceptable perfomance."
I think this sums it up quite nicely. I would query with EMC if/how the next version of EmailXtender (in case you want to upgrade) is improving this (I have heard they improve indexing and eDiscovery).
In case you are quite desparate, you could install a blank and independant EX system (use the same encryption key if any was chosen for the productive system) and add the volumes one by one (I would probably not point to the original data, though this should be possible). It's kind of a major desaster recovery, where the SQL DB and the index etc. gets recreated from the original data. You'll have smaller indexes, they should be better searchable, and the search tools stay the same?! Might this be something to explore?
I believe you wanted a different reply. Hope that helps anyway.
Kind regards,
Jochen.