Category Archives: Storage Backup

A day and a half with HP Storage

Posted on January 30, 2012 by Ray

[long post 945 wds] HP held their (annual?) HP Tech Days in Fort Collins, Colorado this last week. We had presentations from a number of HP product managers and got to meet a number of new and old bloggers there. … Continue reading →

Posted in Block Storage, Data reduction, Disk storage, File Storage, Storage architecture, Storage Backup, System effectiveness | Tagged , , , , , , , , , , | 1 Comment

Latest Microsoft ESRP v3 (Exchange 2010) 1K to 5K mailbox performance results – chart of the month

Posted on August 25, 2011 by Ray

Microsoft specifies two different metrics on sequential read rates for database backup activity in their Exchange Solution Reviewed Program (ESRP) reports MB read/sec per database MB read/sec total per server Our problem with these metrics is that they don’t say … Continue reading →

Posted in Block Storage, Disk storage, Ethernet, FC, Storage Backup, Storage performance, System effectiveness | Tagged , , , , , , , , , | Leave a comment

EMCWorld day 3 …

Posted on May 11, 2011 by Ray

Sometime this week EMC announced a new generation of Isilon NearLine storage which now includes HGST 3TB SATA disk drives.  With the new capacity the multi-node (144) Isilon cluster using the 108NL nodes can support 15PB of file data in … Continue reading →

Posted in Data, Data grid, Data retention, Distributed computing, File Storage, Storage architecture, Storage Backup, Systems | Tagged , , , , , , | Leave a comment

EMC Data Domain products enter the archive market

Posted on January 18, 2011 by Ray

In another assault on the tape market, EMC announced today a new Data Domain 860 Archiver appliance. This new system supports both short-term and long-term retention of backup data. This attacks one of the last bastions of significant tape use … Continue reading →

Posted in Data, data protection, Data retention, Storage Backup, Storage longevity | Tagged , , , , , , , , | Leave a comment

Top 10 storage technologies over the last decade

Posted on December 30, 2010 by Ray

Some of these technologies were in development prior to 2000, some were available in other domains but not in storage, and some were in a few subsystems but had yet to become popular as they are today.  In no particular … Continue reading →

Posted in Block Storage, Cloud services, Data, Data compression, Disk storage, Ethernet, FC, File Storage, Networking, Storage, Storage Backup, Storage density, Storage Features, Storage performance, Strategic Inflection Points, System effectiveness, Systems, Tape storage | Tagged , , , , , , , , , , | 4 Comments

EMC to buy Isilon Systems

Posted on November 16, 2010 by Ray

I understand the rationale behind EMC’s purchase of Isilon scale out NAS technology for big data applications.  More and more data is being created every day and most of that unstructured.  How can one begin to support multiple PBs of … Continue reading →

Posted in Data, data protection, File Storage, Storage, Storage architecture, Storage Backup | Tagged , , , , , | 1 Comment

Cloud storage replication does not suffice for backups – revisited

Posted on November 2, 2010 by Ray

I was talking with another cloud storage gateway provider today and I asked them if they do any sort of backup for data sent to the cloud.  His answer disturbed me – they said they depend on backend cloud storage … Continue reading →

Posted in Cloud services, Data, data protection, File Storage, Storage, Storage Backup, System effectiveness, Systems | Tagged , , | 2 Comments

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 , , , , , , , | 2 Comments