Dell PowerScale vs. IBM Storage Scale

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.

Incentivized

When you get a Spectrum Scale solution from IBM you are certain of two things. 1) You will need a specialized storage admin who will be able to take all of its advantages and make available for your organization. It is an appliance that not so many storage admins would be comfortable working on. Invest properly on both hardware and human resources. 2) You will scale forever. We started with a couple of hundred of Terabytes and grew to dozens of Petabytes.

Incentivized

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

Incentivized

• Secure data storage platform.
• Secure environment to handle big data through.
• Creating reports from multiple platforms easily.

• 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.

Incentivized

• Not suited for HPC.
• Doesn't work well for retail.

Incentivized

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.

Incentivized

It was the solution that fit the requirements of our customers.

Incentivized

• 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

Incentivized

• Allowed reuse of existing storage
• Flexibility to provision storage quickly, allowing us to right size storage.

Incentivized