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 Learning Center:  High Availability
Last Updated: Nov 28, 2001 
The need for 24x7 data availability often leads to countless efforts by today's storage administrator. Learn from Marc Staimer and others about the cost vs. availability trade-offs in the quest for five 9s. Join us in this week's ...
>> What's your best safeguard to ensure data availability? Share it!
>> Ask one of our experts about your data availability issues.
Storage Decisions 2001: Five 9s, SANs and cost-counting

(28 Nov 2001)

Everyone wants five 9s. But, before businesses implement procedures to achieve the "Holy Grail," they need to determine two things: What it is and is it worth it.

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NEWS:
>> Webcast: Five 9s availability (Marc Staimer, Dragon Slayer Consulting) (Storage Decisions 2001) 28 Sep 2001
>> Storage Decisions 2001 Preview: Achieving perfection in uptime (SearchStorage) 15 Aug 2001
>> Storage execs rate Unix, OS/390 as most reliable operating systems (SearchStorage) 05 Apr 2001
>> Storage Decisions 2001 Presentation Slides (Storage Decisions 2001) 26 Sep 2001
>> Free storage management conference, hosted by searchStorage (Storage Management 2002 Conference) 09 Nov 2001
LINKS:
>> Best Web Links-->Administrative Tools and Strategies-->High Availability
ADVICE:
>> Better data availability for the masses
TIP :A few basic rules of thumb for better data availability. Lessons learned from the terrorist attack on the WTC.
>> Figuring out the metrics of "five-nines"
TIP :How much is enough? We spoke with analyst Aaron Goldberg about his recent research on Web site availability.
>> Working around no backup window?
TIP :Here's a look at one solution for working around no backup window.
>> Server clustering boosts reliability, eases failover
TIP :System downtime is crucial in the world of ebusiness. Clustering is one option for keeping servers running smoothly.
>> Features of a good replication software
TIP :What features should replication software have to provide the utmost in functionality?
>> Synch vs. asynch replication
TIP :Good and bad of these two replication methods.
>> Managing mirrors
TIP :Some advice on volume management and mirroring.
>> Journaling vs. scoreboarding
TIP :Discussion of two different methods of making sure that data backup is reliable.
>> Improve performance with a filer
TIP :For some installations, a filer can speed up network performance.
>> SQL2000 availability and recovery
ASK THE EXPERTS :We are trying to provide highly available, quickly recoverable SQL2000 databases on a W2K advanced server. We are using MSCS ...
>> Insuring data security
ASK THE EXPERTS :Given that our company needs to retain our backups at an offsite storage facility for 10-15 years, which cipher algorithm and ...
>> Keeping data within the SAN
ASK THE EXPERTS :

I'm evaluating SAN solutions for my shop. Compaq tells me they have a SAN solution (the MA8800) that includes an ...

>> NAS appliance backup
ASK THE EXPERTS :What is the most effective way of backing up data on some NAS devices such as Quantum Snap Server and MaxAttach? I understand ...
BOOKS:
>> Blueprints for High Availability: Designing Resilient Distributed Systems Price: $ 47.49
blueprints, disciplines, and processes for assessing risks of a distributed system, assigning costs and selecting appropriate ...

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Disaster recovery and planning
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Terms from Whatis.com − the technology online dictionary
application-aware storage  (SearchStorage.com)
Backup and recovery: Do you speak geek?  (WhatIs.com)
bare metal restore  (SearchStorage.com)
cold backup  (SearchStorage.com)
continuous data protection  (SearchStorage.com)
hot backup  (SearchStorage.com)
online backup  (SearchStorage.com)
recovery  (SearchStorage.com)
recovery point objective  (WhatIs.com)
recovery time objective  (WhatIs.com)

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