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January 6th, 2011 13:00
Max LUN sizes
At some point,This was 2TB or keeping it 16-way meta(34GB LUN mostly 500GB) and let host OS handle the remaining part.
With the introduction of Thin Provisioning(most of the load has been distributed among the disks and always have choice of rebalacing) and with the introduction of 64-bit OS,curious to know what is the maximum LUN size being receommended/supported by EMC?
Agree that bigger volumes presents challeges with whiel running file system consistency checks ,backup and restores but there are some data types which needs bigger volumes.Is anyone creating bigger LUNS or sticking to 2TB limit?
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sauravrohilla
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January 6th, 2011 13:00
What is the OS you are referring to?
srichev
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January 6th, 2011 13:00
In general ..For Windows and Solaris but i am intrested in other flavors.
dynamox
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January 7th, 2011 06:00
i have a couple of Windows file servers with 10TB LUNs (must use GPT)
srichev
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January 7th, 2011 06:00
Dynamox, Do you see any issues? What kind of application? Is it with VP or traditional LUN?
I am using 6TB LUN and running fine with out any issues for a sequential read application.Wondering,if i can introduce bigger one in the environment.
dynamox
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January 7th, 2011 07:00
these are presented to a file server, so not a lot of high load ..have not had any issues. These are running on DMX3 and were build as thick LUNs. If your application supports multiple drive letters/mount point ..maybe i would consider presenting another LUN versus keep expanding this one. You get more queues in the OS, plus other concerns that you already mentioned (backup/restore times, file system check ..etc)