IBM SmartCloud Enterprise Storage Demo

Alex Amies, Solution Architect, IBM
May 2012

IBM SmartCloud Enterprise
Storage Availability Areas and Dynamic Disk Attach /
Detach Demo
www.ibm.com/cloud/enterprise/

© 2011 IBM Corporation

Agenda

• Concepts and Scenarios

• Demos

• UI

• Command line

• Java API

2 © 2011 IBM Corporation

Agenda


• Demos

• UI

• Command line

• Java API


Concepts

The demo illustrates the use of storage availability areas and dynamic attach / detach features
in an end-to-end data back-up and verification scenario.

A storage volume in SmartCloud Enterprise is a virtualized block storage unit. It can be
mounted to a virtual machine as a storage device and formatted with a file system to store data.
Other terms sometimes used to refer to the same concept in SCE are storage unit or just
volume. Cloud users can use storage availability areas to store data in different areas within
the same data center for the back-up purposes.

When creating a storage volume a storage availability area can optionally be chosen for the
volume to be provisioned to. If no storage availability is chosen then one will be assigned by
the system. When cloning a storage volume it may be cloned to a different data center.

A storage volume may be attached to a virtual machine instance after creation using dynamic
attach. This is in contrast to static attach where a storage volume is attached to a disk during
the virtual machine creation time. The storage volume may be detached without deleting the
virtual machine instance using dynamic detach.


Scenarios for Data Backup

Whole volume backup
2.Create a storage volume – choose a storage area or accept the default
3.Create a virtual machine
4.Attach the volume to the virtual machine (separate step, i.e. dynamically)
5.Add data to the volume
6.Detach the volume
7.Backup the data by cloning the volume
8.Re-attach the volume and continue using it
9.Note: you must dynamically attach and detach for this scenario to work

Data backup
12.Create two volumes each on different availability areas
13.Create a virtual machine attaching both volumes (single step or two steps, i.e. either
statically or dynamically)
14.Use one volume for active data storage and retrieval
15.Back-up data by copying to the other volume
16.Note: need to manage your own data with mounted volumes in this case

Scenarios for Image Import / Copy

Image Import
2.Create a storage volume
4.Attach the volume to the virtual machine (separate step, i.e. dynamically)
5.Upload a virtual machine image OVF bundle to the volume using the native tools in the virtual
machine
6.Detach the volume
7.Import the image to the cloud using the image import API or command line

Image Copy
10.Create a storage volume
11.Copy a virtual machine image OVF bundle to the volume from the cloud image repository
using the SCE image copy command or API
13.Attach the volume to the virtual machine (i.e. dynamically)
14.Copy the image OVF bundle from the volume to a location outside the cloud using the native
tools of the virtual machine


Agenda


• Demos

• UI

• Command line

• Java API


User Interface in web portal

The storage availability area options appear in the storage volume provisioning wizard, in the
storage volume table, and in the clone storage volume dialog.

Dynamic attach and detach are not available in the user interface. However, the changes in
state for triggered by their use via the command line tool and API are apparent in the user
interface.


Create Storage Volume
Storage availability areas are displayed for the supported data centers in the storage volume
provisioning wizard.


Detailed View of Storage Volume
After a storage volume is provisioned then the availability area that the volume is provisioned to
will be displayed.


Clone Storage Volume
When cloning a storage volume you will be presented the choice of availability area for
supported data centers.


Agenda


• Demos

• UI

• Command line

• Java API


Demo – backup storage volume to a different availability area

1.Create a volume in a known storage availability area
a)Query to discover existing availability areas
b)Find storage volume offering ID, available sizes, and supported formats
c) Create storage volume on a selected availability area
d)Check status, wait until provisioning is complete
2.Use the volume to store data
a)Find supported sizes and check support for dynamic attach / detach for selected virtual machine
image
b)Determine SSH key to use for new virtual machine instance
c) Create an instance with selected image and supported size
d)Check state of instance - wait for instance to be created
e)Dynamically attach storage volume to instance
f) SSH to instance, partition, format, and mount the volume. Now that it is ready to use, save data to it.
3.Back the volume up
a)Detach the volume
• Clone the volume to another availability area to back up the data
c) Dynamically attach the cloned storage volume to the instance to verify that the data has been backed
up successfully


Demo with Command line tool
Use Windows for demo, Linux is similar
Step 1a: create password file and list storage availability areas

# Create a password file
> ic-create-password.cmd -u a.user@example.com -p *** -w unlock -g mykey.ext

# Find storage availability areas with the describe locations command
> ic-describe-locations.cmd -u a.user@example.com -w unlock -g mykey.ext
ID: 41
Location: RTP
Name: Raleigh, U.S.A
State: ONLINE
Description: This data center is located in Raleigh, North Carolina, U.S.A. The
services provided are: Guest Instances, Image Capture, Persistent Storage, Reser
ved IP, Private VLAN/VPN.
Available Storage Areas :
Storage Area Id: 2
Storage Area Name: Area2
...............
Storage Area Id: 1
...


Step 1b: Find storage volume offering information
Use data found in the create volume command, step 1c

>ic-describe-volume-offerings.cmd -u a.user@example.com -w unlock -g mykey.ext
...
ID: 20035200 ## Note for create volume command
Name: Storage
Label: Storage
Location: 41 ## Data is for RTP, other locations will be listed but output is not shown here
Supported sizes in Gib: 60,256,512,1024,2048,4112,8224,10240 ## Use offering ID with list of numeric sizes
Price: $0/GHR
CurrencyCode: USD
CountryCode: SPT
PricePerQuantity: 1
UnitOfMeasure: GHR
Supported Format :
~~~~~~
Format : EXT3
Format : RAW ## In upper case, note for create volume command
...


Step 1c: Create storage volume on a given availability area
Use the input parameters from steps 1a and 1b, note the volume ID for step 2e

>ic-create-volume.cmd -u a.user@example.com -w unlock -g mykey.ext -n"Storage Demo" -s 60 -f RAW -L 41 -O 20035200 -A
1
Executing action: CreateVolume ...
The request has been submitted successfully.
ID: 31854 ## Used later
Name: Storage Demo
Owner: a.user@example.com
Size: 60
Format : raw
InstanceId:
OfferingID: 20035200
Storage Area Id: 1
CreatedTime: May 18, 2012 2:55:30 PM CST
Executing CreateVolume finished


Step 1d: Check status of new volume, wait for provisioning to complete
If the status is NEW or PROVISIONING wait for a few minutes and try again

>ic-describe-volume.cmd -u a.user@example.com -w unlock -g mykey.ext -v 31854
Executing action: DescribeVolume ...
ID: 31854
Name: Storage Demo
Size: 60 Gib
Format : raw
InstanceId:
State: UNMOUNTED
Location: 41
Storage Area Id: 1
I/O operation price: $0.11/million
Platform Version: 2
Executing DescribeVolume finished


Step 2a: Find supported sizes and check support for dynamic attach / detach for selected
virtual machine image
>ic-describe-image.cmd -u a.user@example.com -w unlock -g mykey.ext -k 20025206
Executing action: DescribeImage ...
ID: 20025206
Name: Red Hat Enterprise Linux 6.2 (64-bit)(RTP)
Visibility: PUBLIC
State: AVAILABLE
Owner: SYSTEM
Platform: Red Hat Enterprise Linux/6
Platform Version: 1.2 ## OK
Location: 41
Image Size: 5.781006 Gib
----------------------------------
InstanceType ID: COP64.2/4096/60 ## Needed in the ic-create-instance command
Label: Copper 64 bit
Detail: Copper - 64 bit (vCPU: 2, RAM: 4 GiB, Disk: 60 GiB)
Price: $0.3/UHR
CurrencyCode: USD
CountryCode: SPT
PricePerQuantity: 1
UnitOfMeasure: UHR
...

Step 2b: Determine SSH key to use for new virtual machine instance
Use for create instance, step 2c

>ic-describe-keypairs.cmd -u a.user@example.com -w unlock -g mykey.ext
Executing action: DescribeKeyPairs ...
10 keys
----------------------------------
Name: july26 ## Needed in the ic-create-instance command
Default Key: true
Material: ***
LastModifiedTime: August 28, 2011 9:39:05 PM CST
1 instances related.
Instance ID: 210671
...


Step 2c: Create an instance with selected image and supported size
The primary purpose of the instance is to access data on the storage volume

>ic-create-instance.cmd -u a.user@example.com -w unlock -g mykey.ext -t "COP64.2/4096/60" -n "Storage Demo VM" -k
20025206 -c july26 -L 41
Executing action: CreateInstance ...
1 instances!
----------------------------------
ID: 234165 ## Needed later in multiple commands
Name: Storage Demo VM
Hostname:
InstanceType: COP64.2/4096/60
IP:
KeyName: july26
RequestID: 234465
RequestName: Storage Demo VM
Status: NEW ## Need to wait for the status to change to ACTIVE
Volume IDs:
----------------------------------
Executing CreateInstance finished


Step 2d: Check state of instance - wait for instance to be created
We are looking for an ACTIVE state to move to the next step
>ic-describe-instance.cmd -u a.user@example.com -w unlock -g mykey.ext -l 234165
Executing action: DescribeInstance ...
ID: 234165
Name: Storage Demo VM
Image ID: 20025206
Hostname: vhost1772.site1.compute.ihost.com
InstanceType: COP64.2/4096/60
IP: 170.224.166.242
KeyName: july26
Owner: aamies@cn.ibm.com
RequestID: 234465
RequestName: Storage Demo VM
Status: ACTIVE
Location: 41
Volume IDs:
Disk Size: 60
Minimal local disk: false
Expiration Time: May 18, 2014 5:36:30 PM CST
Executing DescribeInstance finished


Step 2e: Dynamically attach storage volume to instance
Get the volume and instance ID's from previous steps 1c and 2c

>ic-attach-volume.cmd -u a.user@example.com -w unlock -g mykey.ext -l 234165 -v 31854
Executing action: AttachVolume ...
Executing AttachVolume finished

## Virtual machine status will go ATTACHING. Check status as in previous step to wait for state to return to ACTIVE.
>ic-describe-instance.cmd -u a.user@example.com -w unlock -g mykey.ext -l 234165
...
Status: ATTACHING
...
>ic-describe-instance.cmd -u aamies@cn.ibm.com -w unlock -g mykey.ext -l 234165
...
Status: ACTIVE
...


Step 2f: Log onto the instance and use the attached volume to store data
Check presence of volume (vdc) and partition it (Bash commands)
Log onto instance with SSH and change to root
$ sudo /bin/bash
# /sbin/fdisk -l ## List partitions
Disk /dev/vda: 64.4 GB, 64425558016 bytes
...
Disk /dev/vdb: 4294 MB, 4294967296 bytes
...
Disk /dev/vdc: 64.4 GB, 64424509440 bytes ## Newly attached partition
...
Disk /dev/vdc doesn't contain a valid partition table ## Not partitioned

# /sbin/fdisk /dev/vdc ## Partition the new volume, follow the menu
...
# mkfs -t ext3 /dev/vdc1 ## Format the partition to ext3
...
# mkdir /volume1 ## Create mount point
# /bin/mount /dev/vdc1 /volume1 ## Mount the file system
# cd /volume1 ## Write data to the volume
# vi my_data.txt
...
# umount /volume1 ## unmount file system
# exit ## Log out of instance


Step 3a: Detach the volume
The volume must be detached to clone it

>ic-detach-volume.cmd -u a.user@example.com -w unlock -g mykey.ext -l 234165 -v 31854
Executing action: DetachVolume ...
Executing DetachVolume finished

## Volume status will go ATTACHING. Check status as in previous step to wait for state to return to UNMOUNTED.
>ic-describe-volume.cmd -u aamies@cn.ibm.com -w unlock -g mykey.ext -v 31854
...
State: DETACHING
...
>ic-describe-volume.cmd -u aamies@cn.ibm.com -w unlock -g mykey.ext -v 31854
...
State: UNMOUNTED


Step 3b: Clone the volume to another availability area to back up the data
Get the source volume ID from step 1c

>ic-clone-volume.cmd -u a.user@example.com -w unlock -g mykey.ext -n Backup -v 31854 -A 2
Executing action: CloneVolume ...
ID: 31872
Name: Backup
Owner: aamies@cn.ibm.com
Size: 60
Format : raw
InstanceId:
OfferingID: 20035200
Storage Area Id: 2
Data Center Location: 41
Executing CloneVolume finished


Step 3c: Verifying Backup

1.Attach the backup volume to the virtual machine instance
2.Mount the volume to the file system
3.List the files on the volume to make sure that they are the same as the source volume

# /bin/mount /dev/vdc1 /volume1
# ls -l /volume1
total 20
drwx------. 2 root root 16384 May 16 09:41 lost+found
-rw-r--r--. 1 root root 13 May 16 09:43 my_data.txt
# umount /volume1
# exit


Agenda


• Demos

• UI

• Command line

• Java API


Demo with Java API
Step 1a: Query to discover existing availability areas
Get sample code StorageDemo.java in RAM asset
All the examples that follow are methods that are added to the main program on the next page.

Classes and packages to import with the Java API examples

import com.ibm.cloud.api.rest.client.DeveloperCloud;
import com.ibm.cloud.api.rest.client.DeveloperCloudClient;
import com.ibm.cloud.api.rest.client.bean.*;


import java.util.List;
import com.ibm.cloud.api.rest.client.*;
import com.ibm.cloud.api.rest.client.bean.*;
// Class to list storage areas in a location
public class StorageDemo {
public static final String USERNAME = "a.user@example.com";
public static final String PASSWORD = "***";
private DeveloperCloudClient client = DeveloperCloud.getClient();
public StorageDemo() {
client.setRemoteCredentials(USERNAME, PASSWORD);
}
// Method to list storage areas
private void describeStorageAreas(String locationID) throws UnknownErrorException, IOException {
List<Location> locations = client.describeLocations();
for (Location l: locations) {
if (locationID.equals(l.getId())) {
List<StorageArea> storageAreas = l.getStorageAreas();
for (StorageArea storageArea : storageAreas) {
System.out.println("Found storage area id " + storageArea.getId() + ", " +
storageArea.getName() + ", " + storageArea.getDescription());
}
}
}
}
public static void main(String[] args) throws Exception {
StorageDemo demo = new StorageDemo();
demo.describeStorageAreas("41");
}
}

Java API Demo
List availability areas - program output

Found storage area id 1, Area1, gpfs1 of SONAS1
Found storage area id 2, Area2, gpfs2 of SONAS1


Java API Demo
Step 1b: Find storage volume offering ID, available sizes, and supported formats
This method is part of the class in step 1a

private void describeStorageOfferings(String locationID) throws UnknownErrorException, IOException, UnauthorizedUserException {
List<VolumeOffering> volumeOfferings = client.describeVolumeOfferings();
for (VolumeOffering volumeOffering: volumeOfferings) {
if (locationID.equals(volumeOffering.getLocation())) {
System.out.println("Found offering for target location: " + volumeOffering.getId() +
", " + volumeOffering.getName() + ", " + volumeOffering.getLabel());
if ((volumeOffering.getSupportedSizes() != null) && (volumeOffering.getSupportedSizes().size() > 1)) {
List<Long> sizes = volumeOffering.getSupportedSizes();
System.out.print("Sizes: ");
for (Long size : sizes) {
System.out.print(" " + size);
}
System.out.println();
}
}
}
}


Java API Demo
List offering ID's and supported sizes - program output

Found offering for target location: 20001208, Small, 256 GiB
Found offering for target location: 20001209, Medium, 512 GiB
Found offering for target location: 20001210, Large, 2048 GiB
Found offering for target location: 20035200, Storage, Storage
Sizes: 60 256 512 1024 2048 4112 8224 10240


Java API Demo
Step 1c: Method to create a volume in a specific storage availability area
This method is also part of the class in step 1a

private void createVolume(String name, String locationID, String offeringId, String format,
String size, String areaID) throws InsufficientResourcesException,
InvalidConfigurationException, PaymentRequiredException, UnauthorizedUserException,
UnknownErrorException, IOException {
Volume volume = client.createVolume(name, locationID, offeringId, format, size, areaID);
System.out.println("Volume ID: " + volume.getID());
}
...
// Invoke the method
demo.createVolume("My Disk", "41", "20035200", "RAW", "60", "1");


Java API Demo
Step 1d: Check status, wait until provisioning is complete
This method is a simple wrapper for the DeveloperCloudClient.describeVolumes method
that prints out some information about the volumes

private void describeVolumes() throws InsufficientResourcesException,
UnknownErrorException, IOException, UnknownVolumeException {
List<Volume> volumes = client.describeVolumes();
for (Volume volume : volumes) {
System.out.println("Volume ID: " + volume.getID());
System.out.println("Name: " + volume.getName());
System.out.println("State: " + volume.getState());
System.out.println("Area: " + volume.getStorageArea().getId() + ", " +
volume.getStorageArea().getName());
}
}

…
demo.describeVolumes();


Java API Demo
Method to list storage availability area for individual volumes - program output

Volume ID: 31598
Name: My Disk
State: UNMOUNTED
Area: 1, Area1


Java API Demo
Step 2a: Find supported sizes and check support for dynamic attach / detach for selected
virtual machine image
Given by the platform version property, which must be at least 1.2
private Image getImage(String imageID) throws UnauthorizedUserException, UnknownImageException,
UnknownErrorException, IOException {
Image image = client.describeImage(imageID);
System.out.println("Image ID: " + image.getID());
System.out.println("Image name: " + image.getName());
System.out.println("Image Platform Version: " + image.getPlatformVersion());
List<InstanceType> supportedSizes = image.getSupportedInstanceTypes();
for (InstanceType supportedSize : supportedSizes) {
System.out.println("Size: " + supportedSize.getId() + ", " + supportedSize.getLabel());
}
return image;
}
...
Image image = demo.getImage("20025206");


Java API Demo
Step 2b: Determine if the image supports dynamic attach and detach - program output

Image ID: 20025206
Image name: Red Hat Enterprise Linux 6.2 (64-bit)(RTP)
Image Platform Version: 1.2
Size: COP64.2/4096/60, Copper 64 bit
Size: BRZ64.2/4096/60*500*350, Bronze 64 bit
Size: SLV64.4/8192/60*500*500, Silver 64 bit
Size: GLD64.8/16384/60*500*500, Gold 64 bit
Size: PLT64.16/16384/60*500*500*500*500, Platinum 64 bit
Size: PM264.16/32768/60*500*500*500*500, Platinum-M2 64 bit


Java API Demo
Step 2c: Determine SSH key to use for virtual machine instance

private String getDefaultKey() throws UnauthorizedUserException, UnknownErrorException, IOException {
String defaultKey = null;
List<Key> keys = client.describeKeys();
for (Key key: keys) {
System.out.println("Found key with name " + key.getName());
if (key.isDefaultKey()) {
defaultKey = key.getName();
}
}
System.out.println("Found default key " + defaultKey);
return defaultKey;
}


Java API Demo
Step 2d: Create an instance with selected image and supported size

private void createInstance(String instanceName, Image image, String instanceTypeIdStr,
String keyName) throws UnauthorizedUserException, UnknownErrorException,
IOException, InsufficientResourcesException, InvalidConfigurationException, PaymentRequiredException {
System.out.println("Provisioning a new instance");
String location = image.getLocation();
String imageID = image.getID();
Address address = null;
Volume volume = null;
// Create instance
List<Instance> instances = client.createInstance(instanceName, location, imageID,
instanceTypeIdStr, keyName, address, volume, new HashMap<String,Object>());

// Check the status of the provisioning test
for (Instance instance: instances) {
System.out.println("New instance with id: " + instance.getID() + " status: " + instance.getStatus());
}
}
...
Image image = demo.getImage("20025206");
String keyName = demo.getDefaultKey();
demo.createInstance("Java API Test Instance", image, "COP64.2/4096/60", keyName);


Java API Demo
Method to create virtual machine instance - program output

Provisioning a new instance
New instance with id: 232906 status: NEW


Java API Demo
Step 2e: Check the state of instance - wait for instance to be created
This method is a simple wrapper for DeveloperCloudClient.describeInstance

private void describeInstance(String id) throws InsufficientResourcesException,
UnknownErrorException, IOException, UnknownInstanceException {
Instance instances = client.describeInstance(id);
System.out.println("Name: " + instances.getName());
System.out.println("Status: " + instances.getStatus());
List<String> volumeIds = instances.getVolumeIds();
System.out.println("Number of attached volumes: " + volumeIds.size());
for (String volumeId : volumeIds) {
System.out.println("VolumeId: " + volumeId);
}
}
...
demo.describeInstance("232906");


Java API Demo
Method to check status of virtual machine instance - program output

Name: Java API Test Instance
Status: ACTIVE
Number of attached volumes: 0


Java API Demo
Step 2f: Method to dynamically attach a volume
Call it from the main() method

private void attachVolume(String instanceID, String volumeID) throws UnauthorizedUserException, InvalidConfigurationException,
InvalidStateException, UnknownErrorException, UnSupportFeatureException, IOException {
client.attachStorage(instanceID, volumeID);
}
...
demo.attachVolume("232906", "31598");

// Check status as above or check in web portal as shown on the next page


Java API Demo
Status of virtual machine instance during attaching operation – web portal
The status changes to ATTACHING for a short period


Java API Demo
Step 3a: Log onto the instance and use the attached volume to store data

Same as step 10 of the command line tool demo, which lists the Bash commands


Java API Demo
Step 3b: Detach volume
Call it from the main method

private void dettachVolume(String instanceID, String volumeID) throws UnauthorizedUserException, InvalidConfigurationException,
InvalidStateException, UnknownErrorException, UnSupportFeatureException, IOException {
client.detachStorage(instanceID, volumeID);
}
...
demo.dettachVolume("232906", "31598");

// Check status as above or check in web portal as shown on the next page


Java API Demo
Status of virtual machine instance during detaching operation – web portal
Select the volume in the web portal to see the notifications for it


Java API Demo
Step 3b: Status of volume during cloning operation – Java method
Clone volume with ID 31598, named My Disk, from availability area 1 to area 2

private void cloneVolume(String name, String volumeID, String targetAreaID) throws
InsufficientResourcesException, InvalidConfigurationException, PaymentRequiredException,
UnauthorizedUserException, UnknownErrorException, IOException {
client.cloneVolume(name, volumeID, targetAreaID);
}
...
demo.cloneVolume("Backup", "31598", "2");


Java API Demo
Status of volume during cloning operation – web portal


Java API Demo
Step 3c: Verifying Backup

Same as step 13 of the command line tool demo


Resources
Infrastructure as a service cloud development Blog
https://www.ibm.com/developerworks/mydeveloperworks/blogs/iaas_cloud/?lang=en

SCE Command Line Toolkit and Reference
https://www-147.ibm.com/cloud/enterprise/ram/assetDetail/generalDetails.faces?guid
={F1466F46-A4AB-3879-D883-1A26A43BF046}

SCE Java API and JavaDoc
https://www-147.ibm.com/cloud/enterprise/ram/search/_rlvid.jsp.faces?_rap=!assetDetails&_rvip=/s
={555C7964-F531-AECF-F8E9-F5F2D37B64D8}

SCE REST User Guide
https://www-147.ibm.com/cloud/enterprise/ram/artifact/%7B62ACBF96-CEF0-0B67-8529-14438806

Red Hat Enterprise Linux Storage Administration Guide
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guid


Trademarks and notes

©IBM Corporation 2012

IBM, the IBM logo, ibm.com, Cognos, DB2, Informix, Lotus, Rational, SmartCloud, System x, Tivoli and
WebSphere are trademarks or registered trademarks of International Business Machines Corporation in the
United States, other countries, or both. If these and other IBM trademarked terms are marked on their first
occurrence in this information with the appropriate symbol (® or ™), these symbols indicate US registered or
common law trademarks owned by IBM at the time this information was published. Such trademarks may
also be registered or common law trademarks in other countries. A current list of IBM trademarks is
available on the web at “Copyright and trademark information” at www.ibm.com/legal/copytrade.shtml
Intel is a trademark of Intel Corporation or its subsidiaries in the United States and other countries.
Linux is a registered trademark of Linus Torvalds in the United States, other countries, or both.
Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or
both.

Other company, product and service names may be trademarks or service marks of others.
References in this publication to IBM products or services do not imply that IBM intends to make them
available in all countries in which IBM operates.


IBM SmartCloud Enterprise Storage Demo

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