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Important, If either the password file name or your realm name includes spaces, enclose the name

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• To GET a user list: curl --anyauth -u "your-username:your-password" --location-trusted "http://node-ip[/bucket-name]?admin[&domain=name]" [-D log-file-name] You must specify domain=name to GET the user list for a domain. To GET a user list for a bucket, pass in the domain name as the Host in the request. • To APPEND a user list: 1. Create the user list. A user list (also referred to as a security realm or realm) is a collection of user credentials, each of which includes an MD5 hash using the HTTP Digest authentication algorithm. You compute user list or realm from the string username:realm:password. There are a variety of programming functions and utilities available, including md5sum; and htdigest, which is provided as part of the Apache distribution. htdigest is maintained by Apache. Consult the Apache wiki or bug report page for up-todate information about it. Dell testing and experience recommends you observe the following guidelines when using htdigest: • On Windows, avoid creating a password file with a reserved extension, such as .com. • If either the password file name or your realm name includes spaces, enclose the name in double quotes. Important The realm name must exactly match the name of the domain or bucket. To create a user list for the cluster.example.com domain, enter htdigest cluster_example_com cluster.example.com username.here To create a user list for mybucket in the same domain, enter htdigest cluster_example_com_mybucket cluster.example.com/mybucket username.here 2. APPEND the user list: curl -i -X APPEND --data-binary @user-list --anyauth -u "yourusername:your-password" --location-trusted "http://node-ip[/bucketname]?admin[&domain=name]" --post301 -D [-D log-file-name] You must specify domain=name to APPEND the user list to a domain. To APPEND a user list to a bucket, pass in the domain name as the Host in the request. 3. Confirm the user list using GET as shown in the preceding bullet. Note In the event the same user is listed more than once in a user list, DX Storage uses the last (that is, most recent) entry. Copyright © 2010 Caringo, Inc. Version 5.0 All rights reserved 21 December 2010

Section	Page
DX Object Storage Administration Guide	1
Table of Contents	3
Chapter 1. Welcome to DX Storage	6
1.1. Overview of DX Storage	6
1.2. Components	6
1.3. About this Document	6
1.3.1. Audience	6
1.3.2. Scope	6
Chapter 2. Introduction to the Admin Console	7
2.1. Accessing the Admin Console	7
2.2. Initial View of the Admin Console	7
2.2.1. Viewing the Cluster Status Page	7
2.2.2. Viewing a Node's Status Page	8
2.3. Printing the Admin Console	8
2.4. Viewing License Information	8
Chapter 3. Managing the Cluster	10
3.1. Viewing the Cluster Status Page	10
3.2. Authenticating Cluster-Wide Actions	11
3.3. Shutting Down or Restarting the Cluster	12
3.4. Viewing Nodes in the Cluster	12
3.5. Searching for Nodes By IP Address	13
3.6. Searching for Nodes by Status	13
3.7. Choosing and Preserving Cluster Settings	13
3.7.1. Enabling Logging	15
3.7.2. Replication	15
3.7.3. Suspend	15
3.7.4. Power	15
3.7.5. Managing Tenants	15
3.8. Cluster Name	15
3.9. Cluster Multicast Address	15
3.10. % Used Indicator	15
Chapter 4. Managing Tenants	17
4.1. Terminology Related to Tenant Security	18
4.2. About the Default Cluster Domain	19
4.3. Security Privileges for Administrative Operations	20
4.4. Rules and Recommendations for Managing Tenants	21
4.5. Domain Naming Rules	21
4.6. Adding, Editing, or Deleting Tenants	22
4.7. Other Cluster Administrator Tasks	24
4.7.1. Using Administrative Override	25
4.7.1.1. Using Override to Delete an Object	25
4.7.1.2. Using Override to GET or APPEND User Lists	25
4.7.1.3. Using Override to Resolve Authorization Specification Issues	27
4.7.2. Working With Inaccessible Objects	28
Chapter 5. Managing Nodes	30
5.1. Viewing the Node Status Page	30
5.1.1. Shutting Down or Restarting a Node	30
5.1.2. Retiring or Identifying a Node	30
5.1.2.1. Retiring a Node or Volume	30
5.1.2.2. Identifying a Volume	31
5.1.3. Errors and Announcements	31
5.1.4. Additional Node Status Information	31
5.1.4.1. Hardware Status Reporting	33
5.2. Displaying Subcluster Information	34
Chapter 6. Configuring the Node	35
6.1. Option Names and Descriptions	35
6.2. Managing DX Storage Administrators and Users	41
6.2.1. Defining CAStor administrators and SNMP Administrators	41
6.2.2. Defining DX Storage Operators	42
6.2.3. Securing the Administrator and Operator Passwords	42
6.3. Managing Content Integrity Settings	43
6.3.1. autoRepOnWrite	43
6.3.2. repPriority	43
6.3.3. autoValidateRead	43
6.4. Managing Other Stream Replication Settings	44
6.4.1. minreps, maxreps, and defreps	44
6.4.2. hpStartDelay	44
6.5. Managing Volumes	44
6.5.1. device	45
6.5.2. policy	46
6.5.3. Specifying Exceptions	46
6.6. Configuring Power Management Settings	46
6.6.1. sleepAfter	46
6.6.2. wakeAfter	46
6.7. Managing Other Settings	46
6.7.1. consolePort	46
6.7.2. domainHeaders	46
6.7.3. loghost	47
6.7.4. timeSource	47
Chapter 7. Managing Volumes	49
7.1. Volume Expiration	49
7.2. Movement Between Nodes	49
7.3. Physical Errors	49
Appendix A. Implementation of Multi-Server Chassis	51
A.1. Configuration Parameters	51
A.1.1. Processes parameter	51
A.1.2. Network Setup parameters	51
A.1.3. Using the vols parameter	52
A.1.4. Using the subcluster parameter	52
A.2. Monitoring and Administration	53
Appendix B. Using SNMP with DX Storage	54
B.1. SNMP Management Information Base (MIB) Reference	54
B.2. Managing DX Storage Nodes	54
B.2.1. Shutdown Action for Nodes	54
B.2.2. Retire Action for Nodes and Volumes	54
B.2.2.1. Single Volumes	55
B.2.2.2. Entire Node	55
B.3. SNMP Tools and Monitoring Systems	55
B.3.1. Open Source Tools	55
B.3.2. SNMP Examples with DX Storage	56
B.3.3. SNMP Action OIDs	56
B.3.3.1. castorShutdownAction	56
B.3.3.2. castorRetireAction	56
B.3.3.3. castorLogLevelAction	56
B.3.3.4. castorSyslogHostAction	56
B.3.3.5. volumeRecoverySuspend	57
B.3.4. Practical SNMP with DX Storage	57
B.3.4.1. Health Monitoring	57
B.3.4.2. Capacity Monitoring	57
B.3.4.3. Client Activity Reporting	58
Appendix C. Upgrading a License or Cluster	59
C.1. Upgrading a License File	59
C.2. Software Upgrade Overview	59
C.2.1. Preparation	59
C.2.2. Upgrade Steps	60
C.2.2.1. Example Shutdown Script	60
C.2.2.2. Cluster Reboot	60
C.3. Back-out Steps	61
Appendix D. Troubleshooting	62
D.1. Restoring Domains and Buckets	62
D.1.1. Recovering a Deleted Domain	62
D.1.2. Recovering a Deleted Bucket	65
D.2. Resolving Duplicate Domain Names in a Mirrored or Disaster Recovery (DR) Cluster	66
D.2.1. Renaming a Domain in its Source Cluster (DR Cluster Conflict Only)	66
D.2.2. Renaming a Domain in a Mirrored or DR Cluster	67
D.3. Using DX Content Router to List Buckets and Objects	69
D.4. Boot Errors	69
D.5. Configuration	70
D.6. Operational Problems	70
Appendix E. Drive Identification API	72
E.1. Overview	72
E.2. Customization Steps	72
Appendix F. Customizing the Admin Console	73

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Version 5.0

December 2010

•

To GET a user list:

curl --anyauth -u "

your-username

your-password

" --location-trusted

"http://

node-ip

bucket-name

]?admin[&domain=

name

]" [-D

log-file-name

]

You must specify

domain=

name

to GET the user list for a domain. To GET a user list for a

bucket, pass in the domain name as the Host in the request.

•

To APPEND a user list:

1. Create the user list.

A user list (also referred to as a

security realm

realm

) is a collection of user credentials, each

of which includes an MD5 hash using the

HTTP Digest

authentication algorithm.

You compute user list or realm from the string

username

realm

password

. There are a

variety of programming functions and utilities available, including

md5sum

; and

htdigest

which is provided as part of the

Apache

distribution.

htdigest

is maintained by Apache. Consult the

Apache wiki

bug report page

for up-to-

date information about it. Dell testing and experience recommends you observe the following

guidelines when using

htdigest

•

On Windows, avoid creating a password file with a reserved extension, such as

.com

•

If either the password file name or your realm name includes spaces, enclose the name in

double quotes.

Important

The realm name must exactly match the name of the domain or bucket.

To create a user list for the

cluster.example.com

domain, enter

htdigest

cluster_example_com cluster.example.com username.here

To create a user list for

mybucket

in the same domain, enter

htdigest

cluster_example_com_mybucket cluster.example.com/mybucket

username.here

2. APPEND the user list:

curl -i -X APPEND --data-binary @

user-list

--anyauth -u "

your-

username

your-password

" --location-trusted "http://

node-ip

bucket-

name

]?admin[&domain=

name

]" --post301 -D [-D

log-file-name

]

You must specify

domain=

name

to APPEND the user list to a domain. To APPEND a user list

to a bucket, pass in the domain name as the Host in the request.

3. Confirm the user list using GET as shown in the preceding bullet.

Note

In the event the same user is listed more than once in a user list, DX Storage uses

the last (that is, most recent) entry.