IT News - Storage
2020 May 17
Beat The Software Bottleneck By Improving Storage Performance
SearchStorage, May 7th, 2020

"Storage systems no longer live up to their full potential. Proving this statement requires a little math," writes George Crump in SearchStorage.

"If you add up the raw performance of each drive in an all-flash array and compare it to the stated performance of that array, you will find a significant difference. The math suggests the all-flash system should be able to generate millions of IOPS, yet most can't create more than a few hundred thousand.

Understanding the reason for the performance gap requires understanding storage systems architecture..."
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2020 May 17
Storage 101: Crash-Consistent Vs Application-Consistent Snapshots
ComputerWeekly, May 5th, 2020

"When it comes to snapshots and backups, it is important to understand and specify whether to take application-consistent or crash-consistent copies," notes Antony Adshead in ComputerWeekly.

"Why does it matter? Because either crash-consistent or application-consistent copies might be just fine for your workloads - or they may not. There are important differences.

A crash-consistent copy is analogous to the state of data at the point at which hardware crashed or the power went down..."
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