Tag Archive for: VMWare

2012/10/05
05 Oct 2012

Linux 2.6 kernel-based disk scheduler

Symptoms Linux 2.6 kernel-based virtual machines experience slow storage performance as compared to physical hosts on VMWare ESXi 5. Cause As of the Linux 2.6 kernel, the default I/O Scheduler is Completely Fair Queuing (CFQ). The scheduler is an effective solution for nearly all workloads. With the release of Linux 2.6, the kernel has these […]

2012/10/05
05 Oct 2012

DLink DSN 6110 iSCSI Array

Today, I have several Centos 6.3 VM servers which have to share the same files for an application. They use NFS client with a simple automount on a NFS server v4 hosted on a Centos 6.3 VM. The NFS server is a VM on a physical host Dell PowerEdge R805 with a PowerVault MD1000 SCSI […]