Comments on: VMware I/O Problems http://lonesysadmin.net/2006/05/20/vmware-io-problems/ im in ur data centrz patchin ur serverz Fri, 25 Jul 2008 01:24:03 +0000 http://wordpress.org/?v=2.6 By: Tom Weiss http://lonesysadmin.net/2006/05/20/vmware-io-problems/#comment-52097 Tom Weiss Wed, 07 Nov 2007 01:51:14 +0000 http://lonesysadmin.net/2006/05/20/vmware-io-problems/#comment-52097 Are there any recommendations for configuring geometries within a Guest O/S like Solaris? The command `fdisk` provides the ability to override the geometry. Also any recommendations on filesystem blocking? Or should the work in the VM just be happily ignorant of the disk and disk i/o structures? Are there any recommendations for configuring geometries within a Guest O/S like Solaris? The command `fdisk` provides the ability to override the geometry.
Also any recommendations on filesystem blocking?
Or should the work in the VM just be happily ignorant of the disk and disk i/o structures?

]]> By: arcticdoggie http://lonesysadmin.net/2006/05/20/vmware-io-problems/#comment-15434 arcticdoggie Tue, 19 Dec 2006 21:42:49 +0000 http://lonesysadmin.net/2006/05/20/vmware-io-problems/#comment-15434 What was the Disk I/O per sec you were seeing when you had this issue? How many VM's perphysical server? What was the Disk I/O per sec you were seeing when you had this issue? How many VM’s perphysical server?

]]> By: CH http://lonesysadmin.net/2006/05/20/vmware-io-problems/#comment-3448 CH Mon, 03 Jul 2006 13:11:10 +0000 http://lonesysadmin.net/2006/05/20/vmware-io-problems/#comment-3448 Might be worth noting that VMFS3 will be aligned automatically in ESX 3.0. From the VI3 Installation guide, page 12: VMFS3 Partitioning - — For best performance, use the VI Client or Web Access to set up your VMFS3 partitions, rather than using the ESX Server installer. Using the VI Client or Web Access ensures that the starting sectors of partitions are 64K‐ aligned, which improves storage performance. Might be worth noting that VMFS3 will be aligned automatically in ESX 3.0. From the VI3 Installation guide, page 12:

VMFS3 Partitioning - — For best performance, use the VI Client or Web Access to set up your VMFS3 partitions, rather than using the ESX Server installer. Using the VI Client or Web Access ensures that the starting sectors of partitions are 64K‐ aligned, which improves storage performance.

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