"The price-performance ratio is most valuable."
"The most valuable features in IBM FlashSystem are IOPS, performance, duplication, and compression."
"The installation is nice and easy."
"The power systems are very reliable if you are running 24/7 operations. For ongoing mission-critical applications, it's the best solution."
"This solution is convenient, user-friendly, convenient and reliable."
"One of the most valuable features is that it's very easy to use and configure. It used to be more difficult, but now it's almost flawless."
"I like most of the features. Its speed, performance, and availability are valuable. We are implementing the data reduction technology the most."
"Over the years, it has become increasingly user-friendly."
"We've found the product to be quite flexible."
"The price is very costly."
"The technical support in my region is satisfactory but it could improve. Support is very important for customers and downtime is very critical for us. We would like onsite or complete technical support which can help us to minimize our downtime or if problems occur."
"It could be easier to implement."
"The Data Reduction Pools (DRP) support could be better."
"They can improve its initial configuration. The initial configuration is currently very difficult. There are multiple choices or alternative ways to configure based on the use case and what you are targeting out of the device, that is, more capacity or more performance. These multiple alternatives cause a lot of confusion. They should increase the processing part of the nodes. Currently, you can cluster up to eight nodes. From my experience and the workload that I am facing in my environment currently, I would like to see either a bigger or stronger node or a larger number of nodes that can be clustered together. We formally communicated to them that we need to see either this or that, and they are working on something."
"The pricing needs to be more competitive."
"The product needs to improve their scalability."
"We had issues when attempting to do a flash, we hope to resolve it soon."
"The solution is quite expensive."
IBM FlashSystem products are enterprise computer data storage systems that store data on flash memory chips. Unlike storage systems that use standard solid-state drives, IBM FlashSystem products incorporate custom hardware based on technology from the 2012 acquisition of Texas Memory Systems. This hardware provides performance, reliability, and efficiency benefits versus competitive offerings.
In our most recent product, the ActiveStor Ultra, Panasas has developed a new approach called Dynamic Data Acceleration Technology. It uses a carefully balanced set of HDDs, SATA SSD, NVMe SSD, NVDIMM, and DRAM to provide a combination of excellent performance and low cost per terabyte.
• HDDs will provide high bandwidth data storage if they are never asked to store anything small and only asked to do large sequential transfers. Therefore, we only store large Component Objects on our low-cost HDDs.
• SATA SSDs provide cost-effective and highbandwidth storage as a result of not having any seek times, so that’s where we keep our small Component Objects.
• NVMe SSDs are built for very low latency accesses, so we store all our metadata in a database and keep that database on an NVMe SSD. Metadata accesses are very sensitive to latency, whether it is POSIX metadata for the files being stored or metadata for the internal operations of the OSD.
• An NVDIMM (a storage class memory device) is the lowest latency type of persistent storage device available, and we use one to store our transaction logs: user data and metadata being written by the application to the OSD, plus our internal metadata. That allows PanFS to provide very low latency commits back to the application.
• We use the DRAM in each OSD as an extremely low latency cache of the most recently read or written data and metadata.
To gain the most benefit from the SATA SSD’s performance, we try to keep the SATA SSD about 80% full. If it falls below that, we will (transparently and in the background) pick the smallest Component Objects in the HDD pool and move them to the SSD until it is about 80% full. If the SSD is too full, we will move the largest Component Objects on the SSD to the HDD pool. Every ActiveStor Ultra Storage Node performs this optimization independently and continuously. It’s easy for an ActiveStor Ultra to pick which Component Objects to move, it just needs to look in its local NVMe-based database.
IBM FlashSystem is ranked 2nd in NAS with 29 reviews while Panasas ActiveStor is ranked 12th in NAS with 1 review. IBM FlashSystem is rated 8.4, while Panasas ActiveStor is rated 9.0. The top reviewer of IBM FlashSystem writes "Good performance, energy efficient with a small form factor, helpful support". On the other hand, the top reviewer of Panasas ActiveStor writes "Easy to use and flexible with great performance". IBM FlashSystem is most compared with Pure Storage FlashArray, Dell EMC PowerStore, Dell EMC Unity XT, HPE Nimble Storage and NetApp AFF (All Flash FAS), whereas Panasas ActiveStor is most compared with Dell EMC PowerScale (Isilon), NetApp FAS Series, HPE 3PAR StoreServ and Sonexion Scale-out Lustre Storage System.
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