Hpp-enterprises P4000 SAN Manuel d'utilisateur

Table of contents Executive summary ...

10 Figure 2. Using CMC to obtain detailed information about volume XPSP2-01 Creating a new volume The CMC is used to create volumes such as XPSP2-

11 Figure 3. Creating a new volume It is a best practice to create a unique iSCSI volume for each VM in an SR. Thus, HP suggests matching the name

12 Figure 4. Configuring 2-Way Replication and Thin Provisioning You can change volume properties at any time. However, if you change volume size,

13 When undertaking a project to consolidate servers through virtualization, you typically find under-utilized resources on the bare-metal server; ho

14 have configured a single host in a resource pool, you can scale up with additional hosts to enhance VM availability. The sample SRs configured be

15 Figure 5. Turning on NTP using the CMC NTP for XenServer Although NTP Server configuration may be performed during a XenServer installation,

16 Figure 6. Turning on NTP using the XenServer xsconsole Network configuration and bonding Network traffic to XenServer hosts may consist of the

17 Example In the following example, six separate network links are available to a XenServer host. Of these, two are bonded for VM LAN traffic and tw

18 Figure 8. Bonding network adapters NIC 4 and NIC 5 Figure 8 shows the creation of a network bond consisting of NIC 4 and NIC 5 to connect the

19 Figure 9. Renaming network bonds The iSCSI SAN Bond 1 interface is now ready to be used. In order for the bond’s IP address to be recognized,

Configuration ... 33 Imple

20 Figure 10. Determining the IQN of a particular XenServer host If desired, you can use the General tab’s Properties button to change the host’s

21 Figure 11. Changing the host’s IQN Note Once you have used the CMC to define an authentication method for an iSCSI volume, if the host’s IQN c

22 Figure 12. Obtaining the IQN of volume XPSP2-01 Use the following procedure: 1. Under HP-Boulder, highlight the Servers (0) selection. Note th

23 Figure 13. New Server dialog box 3. Enter the name XenServer-55b-02. Note that you can choose any name; however, matching the XenServer host n

24 Figure 14. Assigning volumes and snapshots to server XenServer-55b-02 Figure 15. Assigning servers to volume XenServer-55b-02

25 Creating an SR Now that the XenServer host has been configured to access an iSCSI volume target, you can create a XenServer SR. You can configure

26 Figure 17. Naming the SR XPSP2-01 4. As shown in Figure 18, specify the target host for the SR as 1.1.1.225 (the virtual IP address of the HP

27 Figure 18. Specify the target IQN and LUN 5. For an LVM over iSCSI SR, raw volumes must be formatted before being presented to the XenServer h

28 Figure 19. Warning that the format will destroy data on the volume Figure 20. Verifying that the enumerated SR is shown as available in XenCen

29 Note A XenServer host can create an ISO SR library or import a Server Message Block (SMB)/Common Internet File System (CIFS) share. For more infor

3 Executive summary Using Citrix XenServer with HP StorageWorks P4000 SAN storage, you can host individual desktops and servers inside virtual machin

30 The first SR is designated as the default and is depicted by an icon showing a black circle and a white check mark. Note that the default SR is u

31 Figure 24. The sample environment Configuring for high availability After virtualizing physical servers that had been dedicated to particular

32  Network RAID across the cluster of storage nodes. XenServer host machines also deliver a range of high-availability features, including:  R

33 Figure 25. Adding a network switch to remove a SPOF from the infrastructure Note the changes to the physical connections to each switch – in or

34 logical volumes. With Network RAID, which is configurable on a per-volume basis, data blocks are written multiple times to multiple nodes. In the

35 Figure 27. Configuring Network RAID for a particular volume Pooling XenServer hosts Multiple XenServer hosts can be deployed to support VMs, wi

36 From XenCenter, you can discover multiple XenServer hosts that are similarly configured with resources. Configuring VMs for high availability Y

37 Figure 30. The properties of HP-Boulder-IT-HeartBeat Configuring the resource pool for HA XenServer HA maintains a failover plan that defines

38 the resource pool changes. For example, if you shut down non-essential VMs or add hosts to the pool, XenServer would make a fresh attempt to resta

39 Configuring multi-site high availability with a single cluster If your organization deploys multiple data centers in close proximity, communicatin

4 “Data de-duplication1” allows you to roll out hundreds of OS images while only occupying the space needed to store the original image. Initial dep

40  Appropriate physical and virtual networks exist at both sites. Alternatively, the multi-site SAN feature can be implemented by correct physic

41 Note It is a best practice to physically separate the appropriate nodes or ensure the order is valid before creating volumes. Configuring multi-si

42 When using an HP StorageWorks P4000 SAN, you would configure a management group at Site A. This management group consists of a cluster of storage

43 Figure 36. Creating a new remote snapshot 4. Set the Recurrence time (in minutes, hours, days, or weeks). Consider the following: – Ensure yo

44 Throttling bandwidth Management groups support bandwidth throttling for data transfers, allowing you to manually configure bandwidth service level

45 Figure 38. Changing the direction The CMC may be used with the Volume Failover/Failback Wizard. Refer to the HP StorageWorks P4000 S

46  Reattaching SRs Backing up configurations You can back up and restore the configurations of the resource pool and host servers. Resource pool c

47 Figure 40. Backing up the host configuration The resulting backup file contains the host configuration and may be extremely large. The host ma

48 Figure 41. Backing up the VM metadata VM metadata backup data is stored on a special backup disk in this SR. The backup creates a new virtual

49 thru changing this data to work with individual snapshots and at best works for only changing the original volume’s UUID and persisting the old UU

5 The following section outlines the XenServer storage model. XenServer storage model The XenServer storage model used in conjunction with HP Storage

50 Figure 43. Snapshot rollback It is a best practice to disconnect from the storage repository and reattach to the new rollback storage repos

51 Figure 45. Reattach storage repositories Once the volume is reattached, a VM needs to be created of the same type and reattached to the v

52 console or from VSS enabled requestors, location of additional application data and logs (within XenServer virtual disks or separate iSCSI volumes

53 9GB virtual disk is changed to a 20GB virtual disk. Select OK. The virtual disk presented to the VM will now be 20GB. Start the VM. Depending upon

54 Process preparing a VM for Cloning  Create, install and configure the Windows VM  Apply Windows Updates and Service Packs  Install Citrix Xe

55 may leverage space efficiency and will not tie up XenServer host resources. The downside to this process is that although a unique iSCSI volume wi

56 /dev/sdd is the device path that is required for the next commands and is dependent upon configuration. For example, it may be /dev/sdg or /dev/sd

57 Figure 48. Volume group successfully changed Step 7 – From the XenServer console in XenCenter. The XPSP2-02-RS-1storage repository volume grou

58 lvdisplay | grep “VG_XenStorage-da304b0f-fe27-40b2-9034-7799b97b197d” This example will only contain two virtual disks. The command returns two

59 Figure 50. Each volume group renamed Step 10 – In XenCenter, highlight the XPSP2-02-RS-1 storage repository. Right click on the storage reposi

6 Performance, capacity and availability can be scaled on-demand and on-line. Storage repository A storage repository (SR) is defined as a container

60 virtual disk on the XPSP2-02-RS-1 storage repository. Note that the assumption from the New VM Wizard is that a new operating system installation

61 Figure 53.New SmartClone Volumes Figure 54. Five volumes All 5 of these SmartClone volumes are unique volumes with the original s

62 initial deployment of SmartClone volumes takes no additional footprint on the SAN, these volumes are fully writeable and may ultimately be complet

For more information HP StorageWorks P4000 SANs http://h18000.www1.hp.com/products/storageworks/p4000/ HP StorageWorks P4000 Manuals HP StorageWo

7 storage or from storage to storage. Each host acts as an initiator (iSCSI client) connecting to a storage target (HP StorageWorks P4000 SAN volume)

8 Clustering and Network RAID Since an individual storage node would represent a single point of failure (SPOF), the HP StorageWorks P4000 SAN suppor

9 Configuring an iSCSI volume The XenServer SR stores VM data on a volume (iSCSI Target) that is a logical entity with specific attributes. The volum