Click here to monitor SSC
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Storage Modes in SSAS 2008R2 (MOLAP, ROLAP, HOLAP and InMemory)


Storage Modes in SSAS 2008R2 (MOLAP, ROLAP, HOLAP and InMemory)

Author
Message
saurabh.deshpande
saurabh.deshpande
Valued Member
Valued Member (62 reputation)Valued Member (62 reputation)Valued Member (62 reputation)Valued Member (62 reputation)Valued Member (62 reputation)Valued Member (62 reputation)Valued Member (62 reputation)Valued Member (62 reputation)

Group: General Forum Members
Points: 62 Visits: 114
Can anyone throw some light on Storage Modes in SSAS 2008R2 (MOLAP, ROLAP, HOLAP and InMemory).

I overall aware about the concept of Storage Modes but need to know from the experiance which one is better.

Thanks
Saurabh
sasken
sasken
Ten Centuries
Ten Centuries (1.4K reputation)Ten Centuries (1.4K reputation)Ten Centuries (1.4K reputation)Ten Centuries (1.4K reputation)Ten Centuries (1.4K reputation)Ten Centuries (1.4K reputation)Ten Centuries (1.4K reputation)Ten Centuries (1.4K reputation)

Group: General Forum Members
Points: 1422 Visits: 1915
Default Storage mode is MOLAP.In this, data gets pulled from Relational DB and pushed to Analysis services after aggregations are created.It fetches only leaf level attributes. Super fast but consumes more memory and its not real time. But using proactive caching MOLAP can be made realtime.

ROLAP is slow but real time and data and aggregations(stored in indexed views) are stored in relation databases.

HOLAP: Aggregations are stored in Analysis services and leaf level data are stored in relational data. It is realtime and slow for leaf level data and fast for aggregations

“If your actions inspire others to dream more, learn more, do more and become more, you are a leader.” -- John Quincy Adams
Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search