Dell PowerScale vs. IBM Storwize (now part of FlashSystems)

EMC Isilon Scale-Out NAS is well suited for larger files (greater the 128 Kb) and where you need to have everything in one common name space. Where it is less appropriate is for many small files (millions of files less than 128 Kb in size) - this causes the protection level to becoming mirroring, which will cost more space.

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This stuff runs! Hot, cold not wet, but you know where your data is. Reliably in the cabinet turning your data for the next customer request. You need dedupe, get the flash drive models. Long archives with spinning disks can help with all the data modeling the analysts do. Keep up with the dba’s constant need for speed with all-flash! You will get what you pay for.

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• NAS Storage
• Capacity and Performance details of the array
• Alert and Operations details

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• Data processing and IO. The Storwize devices are very resilient in how they process data and do not have a drop in IO when errors occur (common errors such as disk failures and lost paths).
• Storage efficiency management. We are able to use multiple efficiency techniques such as thin provisioning and data reduction to reduce our budget footprint.
• Easy to use interfaces. Creating a volume and mapping to a host has proven to be a very easy process and makes onboarding less stressful for our team.

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• Some upgrades require the entire cluster to be rebooted simultaneously. In this day and age, that should not be necessary. This is my biggest disappointment with Isilon to date.
• When using multiple storage pools you have to be very careful with your capacity management. Filling up one pool can cause an overflow of data to a pool that is less performance driven. Do not underestimate your capacities or you will find yourself in a tight spot.
• Block size is almost always an issue with Isilon. It does not handle all types of data well. In many cases PACS and VNA data is best to be stored on a different storage platform that will utilize the capacity more efficiently that Isilon is capable of.
• Deduplication seems to be less efficient on Isilon than on other platforms for similar types of data.

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• As a business partner looking to provide services to keep the uptime of the Storwize, I would like to have the capability to pull reports from IBM Storage Insights to assist my clients in managing their system through it's lifecycle.
• More knowledge out there for partners to best integrate IBM Storwize with IBM Power i. This seems to be lacking in communication from IBM.

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Raw disk space vs. logical disk space ratio was significantly better on the Isilon. Fast cache using SSD drives for faster searching is available on the Isilon but not available on the Overland solution. Isilon solution included faster backend switching between nodes.

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We looked at a Netgear product - Ready Stor 5200, which is a great device and a bit cheaper than the IBM Storwize. However, considering it does not have built-in resilience, has limited capacity in terms of network interfaces and is twice the size (4U), I would choose the Storwize any time. The only advantage the Netgear device has is its lower price, however, performance, reliability, and scalability are limited.

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• Isilon provides very high value for money
• Matches the performance and storage requirements of the arrays
• EMC provides very skillful and high response team in case of any issues in isilon

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• I would like to highlight the most positive aspect I have seen in the products of the IBM Storwize family, and it is the ROI that we can choose when we offer real-time compression with the IBM V7000 family. In truth, this feature is excellent, and we have seen how customers save storage resources, rack space, power and management.

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A de minimis incentive was given to thank the reviewer for their time. The incentive was not used to bias or drive a particular response, nor was the incentive contingent on a positive endorsement. More Info