Access "Pump up array performance"
This article is part of the Vol. 4 No. 11 January 2006 issue of Boosting data storage array performance
To get the best performance from your array, you need to tune it to match its workload. AN I/O REQUEST STARTS at a host running an application or a service, travels through layers of its operating system to a host bus adapter (HBA) and then hops through the SAN fabric until it reaches the storage subsystem. When the storage subsystem responds, this course is reversed. This circuitous route offers plenty of performance-killing bottlenecks, as well as opportunities to optimize the performance of your storage subsystem to provide better service for all I/O commands. I/O performance optimization activities for SAN-attached arrays can occur at the following three distinct times: Before the subsystem is purchased when choices about drives, interfaces, cache and data replication features are made. At configuration time when choices are made related to RAID level, RAID segment and stripe size; which drives to use to support a RAID group; which LUNs to assign to a RAID group; as well as cache options for the subsystem, RAID group and/or LUN. At runtime when the ... Access >>>
Premium Content for Free.
- Video will bloat e-mail systems
- Survey Says: Users thirst for capacity planning tools
- Capacity, throughput demands grow unabated
Pump up array performance
As data wends it ways from hosts, through the fabric and to the array, it encounters many potential bottlenecks. But that also means there are a number of ways to improve storage subsystem performance. The key to the tuning process is a thorough understanding of your application requirements.
Top tape libraries revealed
by Rich Castagna
Users cite a high level of satisfaction for these backup mainstays, citing StorageTek and Spectra Logic as the top libraries, in the Diogenes Labs-Storage magazine Quality Awards.
- Tape security... with compromises
SRM gets smarter
Storage resource management (SRM) software is becoming more than a tool to manage storage devices or report on file system or database utilization. SRM vendors are reshaping their products to become the eyes and ears of the enterprise to obtain critical, real-time information.
- Rounding up remote offices
- Snapshot: Bare metal restore used by half of storage managers
Encryption appliances reviewed
Lost tapes have been headline news lately, making encryption products hotter than ever. We review encryption products from Kasten Chase, NeoScale Systems and Vormetric to help you choose the best product for your shop.
- Storage going green
- SRM gets smarter
Cut big backups down to size
by James Damoulakis
Disk-based backup can help companies struggling with the inefficiencies of tape, but you may experience sticker shock at the cost of moving to disk. Data-reduction technologies can trim backup data down to size, and make the price of disk a little easier to swallow.
2005 was a remarkable and productive year in storage
Storage Bin: 2005 was a remarkable and productive year in storage.
No more dodging storage security
by Jon Oltsik
You may have been dodging the issue for some time, but in 2006, storage security will finally get the attention it requires from vendors, analysts and even users.
New demands, new opportunities
New demands, new opportunities
- Cut big backups down to size by James Damoulakis
More Premium Content Accessible For Free
One of the toughest things about supporting virtual servers was ensuring their data was protected. When traditional backup tools struggled with ...
In a relatively short time, solid-state storage has made an indelible mark on storage systems and data center environments. Today, few arrays ship...
Big data infrastructure and analytics are some of the hottest technology topics today, and it can sometimes seem impossible to dissect and digest all...