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List:       opensolaris-lvm-discuss
Subject:    [lvm-discuss] Multi-volume tiered storage
From:       sspyrison () gmail ! com (Scott Spyrison)
Date:       2005-12-01 6:42:07
Message-ID: 438F0BC0.7070902 () gmail ! com
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Hello,

I would like to know if Solaris Volume Manager (or ZFS for that matter) 
has support or plans to support tiered disk storage.  I am aware this 
support exists in Veritas through Storage Foundation, and their 
implementation is through both VxFS and VxVM.  The file system contains 
the policies for different categories or tiers, but you create that file 
system across an object constructed of multiple volumes. 

i.e. it presents the opportunity to add a SATA volume and a F/C volume 
yet create a veritas file system across both volumes as if they were a 
single entity.  Then, the policy constructed in the file system will 
move data to different storage classes (SATA or F/C in my 
over-simplification) based on specified criteria.

I did some reading on SAM/FS, and I still wonder if a scaled down 
"multi-volume" type support is present or planned in SVM.

Thanks!
Scott Spyrison

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