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Dell DX6004S DX Object Storage Administration Guide - Page 38

X-Forwarded, Host, false, domainHeaders, hpStartDelay, loghost, maxreps

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Option Name domainHeaders Default none gateway group none 225.0.10.100 hpStartDelay 900 icmpAcceptRedirects true igmpVersion ioErrorTolerance ipaddress 2 200 none licenseFileURL file:///caringo/license.txt loghost loglevel none 40 logport 514 maxreps 16 Copyright © 2010 Caringo, Inc. All rights reserved 33 Description A comma-separated list of headers in which to search for the host in an SCSP request. By default, the setting is X-ForwardedHost, Host IP address of the default gateway in the subnet. This is only used when ipaddress is set in the configuration file. This is the multicast address for the cluster. It must be a Class D IP address in the range 224.0.0.0 - 239.255.255.255. This address must be unique for each cluster. Administrators must exercise care when configuring multiple, distinct clusters to ensure the multicast groups do not overlap, as any node with the same multicast group will become part of a single cluster. Number of seconds after a node starts before the health processor begins checking the cluster for the required number of replicas for content stored on this node. Determines whether or not the node accepts routing information from ICMP redirect responses. Valid values are true and false. The IGMP version used for host membership queries. Valid values: 1, 2, 3 Number of IOErrors after which a node is taken offline automatically during a retire. Static IP address for a node. If this is not set, a node will use DHCP to obtain its address information. Location and name of the DX Storage license file. The default location must not be modified to utilize the default 2TB license. IP address of an optional Syslog server. Controls the minimum level of messages sent to the loghost. Critical messages are logged at higher levels while minor messages are logged at lower ones. 60=announcement, 50=critical, 40=error, 30=warning, 20=info, 10=debug, 0=no logging. Sets the syslog port to use. The maximum number of stream instances that can be specified in the cluster. This is required to be 1 or higher and must equal or exceed the value of minreps Version 5.0 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

Option Name

Default

Description

domainHeaders

none

A comma-separated list of headers in which

to search for the host in an SCSP request.

By default, the setting is

X-Forwarded-

Host, Host

gateway

none

IP address of the default gateway in the

subnet. This is only used when

ipaddress

set in the configuration file.

group

225.0.10.100

This is the multicast address for the cluster.

It must be a Class D IP address in the

range 224.0.0.0 - 239.255.255.255. This

address must be unique for each cluster.

Administrators must exercise care when

configuring multiple, distinct clusters to

ensure the multicast groups do not overlap,

as any node with the same multicast group

will become part of a single cluster.

hpStartDelay

900

Number of seconds after a node starts

before the health processor begins checking

the cluster for the required number of

replicas for content stored on this node.

icmpAcceptRedirects

true

Determines whether or not the node accepts

routing information from ICMP redirect

responses. Valid values are

true

and

false

igmpVersion

The IGMP version used for host membership

queries. Valid values: 1, 2, 3

ioErrorTolerance

200

Number of IOErrors after which a node is

taken offline automatically during a retire.

ipaddress

none

Static IP address for a node. If this is not set,

a node will use DHCP to obtain its address

information.

licenseFileURL

file:///caringo/license.txt

Location and name of the DX Storage

license file. The default location must not be

modified to utilize the default 2TB license.

loghost

none

IP address of an optional Syslog server.

loglevel

Controls the minimum level of messages

sent to the loghost. Critical messages

are logged at higher levels while minor

messages are logged at lower ones.

60=announcement, 50=critical, 40=error,

30=warning, 20=info, 10=debug, 0=no

logging.

logport

514

Sets the syslog port to use.

maxreps

The maximum number of stream instances

that can be specified in the cluster. This

is required to be 1 or higher and must

equal or exceed the value of minreps