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Network Storage Protocols in a KVM Environment - NFS/SMB/iSCSI Report



Document Author:
Additional Author(s):

Juergen Doelle
Michael Anderson


Document ID:

WP102737


Doc. Organization:

Technical Sales Support - Europe


Document Revised:

04/09/2018


Product(s) covered:

IBM Z; Linux on zSeries; z13







Abstract: A variety of storage protocols can be used to provision guest images in a KVM environment running on IBM Z. iSCSI, NFS, and SMB protocols provide access to storage resources via a TCP/IP network.

This paper describes the performance difference using iSCSI, NFS, and SMB storage protocols for the provisioning of images. Performance criteria of I/O throughput, I/O CPU cost, KVM guest CPU load, and KVM host CPU load metrics are compared when running a file system workload. Measurements are provided for each storage protocol individually, as well as an overall comparison between protocols.

ZSW03374-USEN.pdf



Classification:

Software

Category:

Performance







O/S:

Linux

Keywords:

KVM, Linux, iSCSI, NFS, SMB, IBM Z

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