Clustering for high availability

To continue reading for free, register below or login

Requires Membership to View

To gain access to this and all member only content, please provide the following information (all fields required):

First Name:
Last Name:
Country: Select... Afghanistan Aland Islands Albania Algeria American Samoa Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory British Virgin Islands Brunei Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Congo, Democratic Republic of Cook Islands Costa Rica Cote D'Ivoire Croatia Cuba Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia, The Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guam Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard and McDonald Islands Honduras Hong Kong Hungary Iceland India Indonesia Iran Iraq Ireland Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Korea, North Korea, South Kuwait Kyrgyzstan Laos Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Luxembourg Macau Macedonia Madagascar Malawi Malaysia Maldives Mali Malta Man, Isle of Marshall Islands Martinique Mauritania Mauritius Mayotte Mexico Micronesia Moldova Monaco Mongolia Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands Netherlands Antilles New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Northern Mariana Islands Norway Oman Pakistan Palau Palestine Panama Panama Canal Zone Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Puerto Rico Qatar Reunion Romania Russia Rwanda Saint Helena Saint Kitts and Nevis Saint Lucia Saint Pierre and Miquelon Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia and Montenegro Seychelles Sierra Leone Singapore Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia and South Sandwich Islands Spain Sri Lanka Sudan Suriname Svalbard Swaziland Sweden Switzerland Syria Taiwan Tajikistan Tanzania Thailand Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu U.S. Minor Outlying Islands Uganda Ukraine United Arab Emirates United Kingdom United States Uruguay Uzbekistan Vanuatu Vatican City Venezuela Vietnam Virgin Islands Wallis and Futuna Islands Western Sahara Yemen Zambia Zimbabwe
Email Address:

I would like to receive a FREE subscription to Storage magazine online.
YesNo

Do you manage, evaluate, recommend, implement, support or purchase storage products, software or services?
YesNo

What is your average annual expenditure on storage including hardware, software and services?
Please select... $20 million + $10 to $19.9 million $5 to $9.9 million $1 to $4.9 million $500K to $999K $250K to $499K Less than $250K None

What is your role in purchasing?
Technical decision maker
Financial decision maker
Determine need
Evaluate products/services
Recommend and specify products/services
Implement products/services
None

By joining SearchStorage.com you agree to receive email updates from the TechTarget network of sites, including updates on new content, magazine or event notifications, new site launches and market research surveys. Please verify all information and selections above. You may unsubscribe at any time from one or more of the services you have selected by editing your profile or unsubscribing via email.

TechTarget cares about your privacy. Read our Privacy Policy

BROWSE BY TAG Data storage hardware,   Data storage arrays,   Data Storage Basics,   VIEW ALL TAGS

Digg This!     StumbleUpon     Del.icio.us

RELATED CONTENT Data storage arrays Midrange storage array purchase considerations Midrange storage array specifications Midrange arrays get a makeover Sharing a LUN between windows and making it a cluster SATA, Fibre Channel and ATA disks on the same array? Moving from a modular array to an enterprise array

RELATED RESOURCES 2020software.com, trial software downloads for accounting software, ERP software, CRM software and business software systems Search Bitpipe.com for the latest white papers and business webcasts Whatis.com, the online computer dictionary

The most basic configuration for a cluster is two servers of similar or identical hardware specifications, each with two data paths (preferably a small SAN) to two sets of disks that are mirrored one to the other. Each server needs two back-end networks (for redundancy) and enough public network connections to connect to your existing public network. One server and one disk array should be connected to one electrical circuit, while the other server and disk array should be connected to another.

Any clustering application that you select, and there are many on the market, may introduce its own hardware requirements or recommendations.

With any high availability configuration that you choose, there are tradeoffs between financial and resiliency considerations. I don't normally plug my book in this forum, but this question is exactly the kind of thing that is covered in great detail in my book, "Blueprints for High Availability", published by John Wiley & Sons, and available at here. As for software to manage your cluster, it really depends on the OS you choose. Symantec's Veritas Cluster Server is an excellent choice that runs on several different platforms (though not at the same time). OS vendors also have clustering software for their own platforms, such as Sun, HP (Compaq), and Microsoft, and there are a bunch in the Linux space.