Dell Technologies presents Dell PowerScale (replacing EMC Isilon) as a scale-out NAS solution and server technology that provides the flexibility of a software-defined architecture with accelerated hardware innovations to harness the value of data.
Isilon Systems was acquired by EMC in 2010; some EMC Isilon NAS appliances are still available and supported under the PowerScale brand.
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NetApp FAS Storage Arrays
Score 8.4 out of 10
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NetApp's FAS series systems offers a storage array system for enterprises.
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NetApp FAS Storage Arrays
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Dell PowerScale
NetApp FAS Storage Arrays
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Community Pulse
Dell PowerScale
NetApp FAS Storage Arrays
Considered Both Products
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NetApp FAS Storage Arrays
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Chose NetApp FAS Storage Arrays
Dell EMC PowerScale is [a] good product, however, the product is not good with small files; even after enabling the small file efficiency, the product did not perform well. However, [the] NetApp FAS series gave us the results we expected in our performance testing; after …
Like most other unified solutions, NetApp excels in one particular area, unstructured data. Whilst it can, and does support the presentation of block-based volumes, I do not view it as a strong suit for NetApp. When comparing to other products, the two Unified products that I …
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.
It is very easy to use with NFS. Creating new volumes and mounting to servers such as ESXi or Linux is a breeze. It does also support CIFS but it is far less intuitive and requires much more effort. Replicated data is also very simple and robust in the form of SnapVaults or SnapMirrors. This data is either immediately or periodically replicated to a peer FAS in the cluster for retention.
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.
It does have a really nice and easy to use web interface to do pretty much anything you need with it. It was very simple to configure our volumes and luns and connect them to our VMWare environment using the interface. It has options to rename, shrink, grow, and other things with our luns and volumes. It was nice and easy to read graphs to see where you stand on your storage usage at a glance.
NetApp support in Brazil is managed by its partners. We know in other countries, such as the US and NO, they have support directly from Netapp. We have a very good NetApp partner working with us since the beginning, on both the implementation and daily support. Very few cases needed to be escalated to NetApp support, most of the cases are handled and satisfyingly closed by the partner.
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.
NetApp stacked nicely and gave enterprise-level usability for snapshot-based backups. Our previous RPO was several hours. It was selected prior to me arriving at the company, but It was selected for the hardware refreshes due to its compatibility with several other vendors, like CommVault and VMware.
