[one-users] Best stripe/block size for datastores 0 & 1 with KVM

Gerry O'Brien gerry at scss.tcd.ie
Mon Apr 22 07:06:37 PDT 2013


     We are planning to use ZFS on top of Dell MD1000 arrays for 
datastores 0 & 1. The default blocksize for ZFS is 8KB while the default 
stripe size for Raid6 on the MD1000 is 64KB. It would seem to make sense 
to make the blocksize and stripe size the same. For KVM, would it be 
better to use 8KB or 64KB or something in between? What are the trade-offs?


Gerry O'Brien

Systems Manager
School of Computer Science and Statistics
Trinity College Dublin
Dublin 2

00 353 1 896 1341

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