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limitation in the amount of disks presented

Created: 17 Sep 2013 • Updated: 29 Oct 2013 | 2 comments
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Hi

I just want to find out if there is a limitation in the amount of disks and/or paths that the HPUX OS or the Veritas Volume Manager can support?

Thanks

Colin de Bruin

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mikebounds's picture

I don't believe there is a fixed limit for Volume Manager, but the more LUNs you tadd o a diskgroup, the longer the diskgroup will take to import and deport.  Which disks are in a diskgroup are stored in the private region, so you could run out of private region space, but you can increase the private region space.  

So there are practical limits, but I don't believe there are any theoretical limits.  Usually it is better to have a small amount of large LUNs, rather than a large amount of small LUNs unless you need really high performance by combining hardware striping and s/w striping using VM.

See some other associated links:

https://www-secure.symantec.com/connect/forums/maximum-number-disks-disk-group - this is for Windows, but any limits in Windows are likely the same or higher in UNIX

https://www-secure.symantec.com/connect/forums/multiple-luns-disk-group

Mike

UK Symantec Consultant in VCS, GCO, SF, VVR, VxAT on Solaris, AIX, HP-ux, Linux & Windows

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g_lee's picture

also see duplicate question here:

https://www-secure.symantec.com/connect/forums/dmp

(the OP did create a separate post eventually; in future please refrain from adding unrelated questions to an existing post ie: create the new post correctly in the first place)

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