Should you use all-flash storage for your system? Ramesh Balan, VP Engineering for StorageCraft, answers in June’s TWiT TV’s show: “This Week in Enterprise Tech – A Storage Drive to Rule Them All”. Ramesh discussed the Exablox OneBlox and its innovative object storage system. He also offered some tips on how to efficiently manage storage with OneBlox tiered data architecture. Watch the recording of the show below!
HDD vs SDD Failures
Ramesh explained the different levels of protection that Exablox OneBlox system are employing against disk failure. He reminded us how Google research found that SSD’s and HDD’s fail in different ways. HDD typically suffer from “infant mortality” and SSD’s generally have read disturbance errors and block errors, showed Ramesh. To address all these failures, storage solutions must focus their efforts on safeguarding customer data.
“If you read the Google study on the SSD’s what you will see is: while the SSD failure rate is lower compared to HDD’s, their UBER (uncorrectable bit error rate) is actually higher than for HDD’s. It’s imperative that in software we maintain the parity bits. Even if they get a read disturbance and they get read errors, I can reconstruct from the parity bits. We can actually support the drive lifetimes for four years or five years. That is, under continuous operations for the number or drive writes per day specified for the SSD,” said Ramesh on the show.
Each Exablox system has various failure domains, so that if drives fail, you still don’t lose the file system data. “We distribute the data in such a way that we can tolerate up to two disk failures in the cluster. For SSD’s we also implement block level parity,” added Ramesh.
Exablox Storage Protection
Ramesh also gave an overview of the technologies implemented by Exablox for data protection. “We implement a lot of technologies [for data protection]: we have continuous scrubbing of data, we make sure that the bit rot does not corrupt your data. Since we are also object-based, we also take a SHA-1 checksum of the data so that the object ID itself corresponds with the data on the disk. That actually adds another layer of protection,” added the StorageCraft VP.
During the show, Ramesh also discussed how the Exablox system compares to traditional storage. He also showed how the system allows simplicity and flexibility through cloud management options. Watch the entire recording of the show to see how Exablox works!
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