Access "Users Need Better Way to Predict Disk Failures"
This article is part of the Vol. 3 No. 8 October 2004 issue of Five cutting-edge storage technologies
All disk drive manufacturers happily publish their products' mean time between failure (MTBF) ratings, numbers like 500,000 hours for desktop-class drives, or 1 million hours for SCSI and Fibre Channel drives. But many users feel that the MTBF metric is largely irrelevant in a real-world storage environment. MTBF "is basically a useless number" from a user's perspective, says Mike Chenery, vice president of advanced product engineering at Fujitsu Computer Products of America, a disk drive manufacturer. "What they really want to know is 'How many of my drives are going to fail?'" Part of the problem with MTBF is that not everyone understands how it is calculated. An MTBF of 1 million hours, for example, does not mean that a drive will fail in 114 years (24*365*114), as some users may conclude. Rather, it's a statistical metric derived from testing of a large number of drives for a number of days, and determining the mean failure rate for the entire group, explains Aloke Guha, CTO at Copan Systems, a startup that makes a disk-based backup system built with ... Access >>>
Premium Content for Free.
NAS Nurtures iSCSI Growth
NAS fosters iSCSI growth
- A Petabyte of Pics
SATA II Doubles Disk Speed to 3Gb/sec
SATA doubles disk speed
by Arun Taneja
You can move intelligence to a storage network using intelligent switches or appliances. How the alternatives work, and the pros and cons of each are described.
Nonstop data protection
by Jerome Wendt
The latest CDP products promise administrators the ability to recover from a point in time on a range of platforms.
Back Up to the Future
A magic ball to predict tape failures?
Cheap SATA Spurs D2D
Inexpensive SATA drives D2D
- NAS Nurtures iSCSI Growth
- Users Need Better Way to Predict Disk Failures
Better tape restores
by Jeff Harbert and John Merryman
Don't find out the hard way that your tape-based backup system isn't working as planned. Here are some best practices that will increase the odds that your restores will work.
Hands-On Review: Veritas CommandCentral Storage 4.0
by Darryl Brooks
Veritas Software's upgrade to CommandCentral Storage is a feature-rich program that raises the bar for SRM applications.
Survey Says: Users Like Site Licenses for SRM Software
How would you like to see SRM software priced?
First Look: Storability's GSM 4.0
by Robert L. Scheier
Storability Software's Global Storage Management software offers improved reporting capabilities and new exposure analysis reports in its latest version.
Hot technologies for 2005 and beyond
Storage editors asked industry leaders what new technologies are likely to have the most impact on storage operations. We look at the top five emerging technologies and tell you why they can change how storage gets done in your shop.
The state of standards
by Johanna Ambrosio
Confused by FAIS, SMI-S, RAID DDF or iSCSI? We make sense out of the alphabet soup of storage standards and help you determine which ones you should consider when purchasing storage gear.
Editorial: Storage stylin's
by Mark Schlack
Snapshot: Implementing iSCSI storage systems
Will you implement iSCSI?
Hot Spots: Remote control
by Jon Oltsik
Letting remote and branch offices deal with storage security on their own is courting disaster.
Storage Bin: Einstein was an awful shortstop
Einstein was an awful shortstop
Best Practices: Get your storage management group up and running
by Stephen Foskett
Follow this methodical plan to build an effective storage management group with clearly defined responsibilities.
- Editorial: Storage stylin's by Mark Schlack
More Premium Content Accessible For Free
One of the biggest challenges of building a virtual server infrastructure is fine-tuning the storage that supports the virtual machines. Having ...
Cloud storage, virtualization and the growth of unstructured data have contributed to the way storage architectures are built and used. Virtual ...
While the concept of data archiving has existed for decades, archiving practices that were once considered standard are becoming inadequate. Factors ...