Category Archives: Storage Backup

Poor deduplication with Oracle RMAN compressed backups

Posted on October 20, 2010 by Ray

I was talking with one large enterprise customer today and he was lamenting how poorly Oracle RMAN compressed backupsets dedupe. Apparently, non-compressed RMAN backup sets generate anywhere from 20 to 40:1 deduplication ratios but when they use RMAN backupset compression, … Continue reading →

Posted in Storage Backup, Storage Features, System effectiveness | Tagged , , , , , , , | Leave a comment

EMC NetWorker 7.6 SP1 surfaces

Posted on October 8, 2010 by Ray

This week EMC releases NetWorker 7.6 SP1 with new Boost support for Data Domain (DD) appliances which allows NetWorker’s storage node (media server) and the DD appliance to jointly work on providing deduplication services.  Earlier this year EMC DD announced the … Continue reading →

Posted in data protection, Storage Backup | Tagged , , , , | 1 Comment

CommVault’s Simpana 9 release

Posted on October 5, 2010 by Ray

CommVault annoucned a new release of their data protection product today – Simpana® 9.  The new software provides significantly enhanced support for VM backup, new source-level deduplication capabilities and other enhanced facilities. Simpana 9 starts by defining 3 tiers of … Continue reading →

Posted in data protection, Server virtualization, Storage Backup, Storage Features | Tagged , , , , , , , , | 1 Comment

Cloud storage, CDP & deduplication

Posted on August 20, 2010 by Ray

Somebody needs to create a system that encompasses continuous data protection, deduplication and cloud storage.  Many vendors have various parts of such a solution but none to my knowledge has put it all together. Why CDP, deduplication and cloud storage? … Continue reading →

Posted in Block Storage, Cloud services, Data, Data efficiency, data protection, File Storage, Storage architecture, Storage Backup | Tagged , , , , | 17 Comments

Problems solved, introduced and left unsolved by cloud storage

Posted on November 17, 2009 by Ray

When I first heard about cloud storage I wondered just what exactly it was trying to solve. There are many storage problems within the IT shop nowadays days, cloud storage can solve a few of them but introduces more and … Continue reading →

Posted in Disaster Recovery, File Storage, Storage, Storage Backup, storage economics, Storage performance, Systems | Tagged , , , , | Leave a comment

Protecting the Yottabyte archive

Posted on November 11, 2009 by Ray

In a previous post I discussed what it would take to store 1YB of data in 2015 for the National Security Agency (NSA). Due to length, that post did not discuss many other aspects of the 1YB archive such as … Continue reading →

Posted in Data index, Networking, Storage, Storage Backup, Storage density, Storage performance, Systems | Tagged , , , , , , , , , , , , , , , , | 2 Comments

Repositioning of tape

Posted on October 30, 2009 by Ray

In my past life, I worked for a dominant tape vendor. Over the years, we had heard a number of times that tape was dead. But it never happened. BTW, it’s also not happening today. Just a couple of weeks … Continue reading →

Posted in Data security, Storage, Storage Backup, Storage density, Storage performance, Storage reliability, Systems | Tagged , , , , , , , , , , , | 1 Comment

Sidekick's failure, no backups

Posted on October 12, 2009 by Ray

I believe I have covered this ground before but apparently it needs reiterating. Cloud storage without backup cannot be considered a viable solution. Replication only works well if you never delete or logically erase data from a primary copy. Once … Continue reading →

Posted in Storage, Storage Backup, Storage Quality, Storage reliability | Tagged , , , | 2 Comments