Setup Guide

40 Configuring Storage
can be configured to segregate storage traffic from management traffic.
See "High Availability Configuration and IP Storage Traffic Segregation" on
page 49 for more details on specific configuration steps.
Creating a Storage Repository on Dell EqualLogic PS Series Arrays
With XenServer, two types of SRs can be created on PS Series arrays:
• LVM Over iSCSI (lvmoiscsi) SRs utilize the Linux Volume Manager
(LVM) to create a logical volume per virtual disk image (VDI). The entire
volume on the PS Series array is used to hold VDIs.
• EqualLogic (equal) SRs utilize the XenServer storage adapter to manage
VM storage on PS Series arrays. For each XenServer VDI, a corresponding
volume on the PS Series array is created, allowing for advanced VM
lifecycle operations, such as snapshots, fast clones, thin provisioning, etc.
Creating an LVM Over iSCSI (lvmoiscsi) SR
1 Configure the EqualLogic storage array, create a group, set a member
RAID policy, and create a volume by following the instructions available
on the
PS Series Storage Arrays Quickstart Guide available on the Dell
EqualLogic PS Series iSCSI SAN Arrays website at
equallogic.com/products .
2 Enable shared access from multiple initiators for the storage volume:
a In the PS series group manager user interface, right-click the storage
volume, and click
Modify Volume Settings .
b Click the Advanced tab, and then click to check Enable shared access
to the iSCSI target from multiple initiators
.
3 Return to XenCenter and create an SR by connecting to the desired
XenServer host or the pool master if you are adding storage to a pool, and
clicking on its
Storage tab.
4 Click the Add… button, choose the iSCSI radio button for Virtual disk
storage, and select
Next .
5 Enter the name for the new SR in the Name field, EqualLogic array group
IP address in the
Target Host field, and 3260 in the Port field.