All-Flash Storage Arrays Forum

IssamKawash
Sales Manager at saraha tech
Apr 12 2021

Hello,

I'm looking for pricing for SSD Storage disks with a capacity of 960GB. Part Number: DS224C SW-FLASH-01-QS X371A-6 CS-BASE-SUPPORT CS-N-SSP.

Quantity: 24.

The disks have to be compatible with the ones we currently have (AFFA220, HA system, Flash Bundle, CAN) In terms of the type, support and licenses. 

Thanks for your help!

Storemgr67
Storage Manager at a financial services firm with 10,001+ employees
Mar 18 2021

I'm researching flash storage arrays. I'm looking for advice about which of these two options is better - IBM flash 9200 or EMC VMAX8000. 


Any recommendations?

Martin NagyHI, I would go definitely for PowerMax 8000 series instead of VMAX (old architecture) , for IBM we have little experience (only hear that is expensive)
Jin SiangTanPowerMax 800, as it's an AA array (active/active), while FS9200 is (active/passive) ALUA, FS9200 LUN has ownership controller a or b, Powermax enclosure/expansion enclosure is NVME, FS9200 expansion enclosure is SAS.
Ronald Van HeekI think this will probably depend on what features and functionality you need. FlashSystem 9200 is has much lower latency, small foortprint and has flashcore modules with 2:1 hardware compression (no impact on CPU and overall performance). VMAX is also a proven platform with high IOPS and massive scalability. No external virtualization possible and higher latency. Does have EMC support which is expensive but high quality. IBM now has Pure Storage like subscription options and AI driven support with IBM Storage Insights. In addition with HyperSwap functionality you receive a guaranteed uptime of 100% over two sites. I would prefer FS9200, but specific requirements could make you choose differently. 
Rony_Sklar
IT Central Station
Feb 08 2021

What are some major benefits of all-flash storage arrays? Why should companies invest in all-flash as opposed to a different storage solution? 

AliBizmarkIt has better performance than Hybrid storage and customers can have more IOPS, for the mission critical application customers better use all-flash arrayas
PhPrIn general, all-flash arrays have much better price/performance (in case if turning on DECO is not slowing down the array - some vendors have this issue, so PoC is needed) than hdd-only or hybrid arrays. Higher performance, lower power consumption per TB. The support cost for the HDD-only and hybrid arrays will be more an more expensive, as the HDDs share is going lower, and the main R&D is moved to all-flash arrays. Of course, in some cases (i.e. video surveillance, D2D and maybe several others), HDD-only arrays are the better option, so it's better to make a decision case-by-case.
reviewer810810Speed (IOPs), increased reliability, compactness. If your application does not needs those you can go with legacy solutions as far as price justifies. Sooner or later even price will be in favour of all-flash
Senior technical and storage expert at a tech services company with 51-200 employees
Feb 02 2021

I'm researching All-Flash Storage Arrays. I'm looking for feedback about HPE 3PAR StoreServ and Hitachi Virtual Storage Platform F Series. Can anyone help?

Virgilio AlbertBoth are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Storage. It may be more expensive, but it should pay for itself for its functionalities.
PhPr3PAR is SAS-based storage. The industry is already moving away from the 35-year-old scsi-way, so it's a not a good idea to buy any product with it. I'm not sure about Hitachi, but as far as I know, they also have SAS backend, so, the obvious answer on the question "Which should I choose" is "none of them". My recommendation is - choose other vendors (or models) which provide end-to-end NVMe support and make a choice between them.
Ingo MünzerTake a Dorado 3000 V6 form Huawei. Huawei OceanStor Dorado V6 all-flash storage sets new benchmarks in storage performance and reliability. The OceanStor Dorado delivers best-in-class performance of up to 20,000,000 IOPS. With the AI chips they are the first in the industry to deliver storage systems that get more intelligent during the application operations.
Ariel Lindenfeld
Sr. Director of Community
IT Central Station
Jan 27 2021
Let the community know what you think. Share your opinions now!
it_user208149Primary requirement for me is the data reduction using data de-duplication algorithms. Second requirement is SSD's wear gauge. i need to be sure that SSD's installed in a Flash Array will work as many years as possible. So the vendor who has the best offering in those 2 topics has the best flash array.
it_user202749It depends on your requirements. Are you looking at Flash for Performance, ease of use, or improve data management. Performance; you likely want an array with larger block size and one where compression and de-duplication can be enabled or disabled on select volumes. Data reduction or data management: De-duplication and compression help manage storage growth however; you do need to understand your data. If you have many Oracle databases then Block size will be key. Most products use a 4-8K block size. Oracle writes a unique ID on the Data blocks which makes it look like unique data. If your product has a smaller block size your compression and de-duplication will be better. (Below 4K better but performance may suffer slightly) De-duplication: If you have several Test, Dev, QA databases that are all copies of production de-duplication might help significantly. With this if de-duplication is your goal you need to look at the de-duplication boundaries. Products that offer array wide or Grid wide de-duplication will provide the most benefit. Remote Replication: If this is a requirement you need to look at this carefully each dose it differently, some products need a separate inline appliance to accommodate replication. Replication with no rehydration of data is preferred as this will reduce Wan Bandwidth requirements and Remote storage volumes. Ease of use: Can the daily weekly tasks be completed easily, how difficult is it to add or change storage Volumes, LUN’s, Aggregates. Do you need Aggregates? Can you meet the RTO/RPO Business requirements with the storage or will you need to use a Backup tool set to do this? You should include the cost of meeting the RTP/RPO in the solution cost evaluation. Reporting: you need to look at the caned reports do they have the reports you need to sufficiently mange your data. And equally important to they have the reports needed to show the business the efficiencies provided by the storage Infrastructure. Do you need bill back reports? (Compression, de-duplication rates, I/O Latency reports, ect..).
it_user213957Understanding your particular use case is key to selecting the proper technology for your environment. We are Big Data, Oracle, Data Warehouse. NON-OLTP, So we are hyper sensitive to performance and HA. Flash and Flash Hybrid are the future for the datacenter, but there are varying ways of skinning this cat. so pay close attention to the details. for me HA is paramount. our storage must be NDU in all situations. Performance is important but we are seeing numbers well in excess of anyone's requirements. So what's next? sustained performance. Write Cliff issues, how is this addressed? datacenter cost if your a co-lo is important so having a smaller foot print and lower KW's should be considered. Then of course cost. becareful of the usable number. often de-duplication and compression is factored in with the marketing, So POC is important to understand true usable. I go back to my original statement, understanding what YOUR company needs is the most important piece of data one should take into the conversation with any and all of the suitors.
Rony_Sklar
IT Central Station
Jan 27 2021

How do thick and thin provisioning affect all-flash storage array performance? What are the relative benefits of each?

Mark S. CruceNo performance implications. Its just a provisioning strategy... In thick provisioning, If I need 1GB, I provision 1 GB, even of only 10MB is being used. In thin provisioning, I initially provision 10MB and as the need for more storage grows, I grow the volume with it to the max of 1 GB... Most everyone uses the provisioning unless there’s a specific reason not to you
Marc StaimerApplications require shared block storage to be provisioned. The provisioning is by capacity per LUN (logical unit number) or volume. Thick provisioning means all of the capacity allocated is owned and tied up by that application whether it's used or not. Unused capacity is not sharable by other applications. Thin provisioning essentially virtualizes the provisioning so the application thinks it has a certain amount of exclusive capacity when in reality, it's shared. This makes the capacity more flexible and reduces over provisioning.
Mohamed Y AhmedThick and thin provisioning it's a service related configuration, simply as an example you should use the thick option when you are creating it to hold a storage of database to let the virtual hard disk be ready for heavy writing to don't affect the transaction during the partition expansion. And thin you should use it when you are aiming to hold a file server data like imaging as the delay of creating the virtual hard disk file will never impacting the data writing.  For heavily data writing its more suitable to use thick provisioning.  For heavily data reading no problem to use the thin provisioning.  I hope my answer to help you... 
Menachem D Pritzker
Director of Growth
IT Central Station
Dec 29 2020

Are all types of SSD flash, and vice versa? What's the difference?

Thanks! I appreciate the help. 

Khurram SaoodI believe all-flash means the storage box with the provision of Flash media type only, it may be SSDs it may be either flash media like IBM's Flash Core modules. The All-Flash hardware will only support SSDs, Flash Drives or IBM's Flash core modules. But if it is Hybrid Storage then it is capable of accommodating other media types like NLSAS, SAS drives along with SSDs.
Chetan WoodunI have seen a number of replies. Just clarifying. There are 3 storage Tiers with NVMe, SSD and SAS /NL SSD is a disk that doesn't have moving parts like SAS and NL Now, Flash is the implementation of SSD. SSDs are made mostly of flash memory
Jason Guo• Flash o == NAND o == Flash Memory chip o ==NVM o == SLC + MLC + TLC o == small pieces of chip made for other storage manufacture use, not ready for end user; • SSD o == (a few NAND chips + Interface) o == (SATA SSD + SAS SSD + NVMe SSD + M.2 SSD) o == 4 or 8 flash memory chips manufactured (welded together on PCB board) to become a Hard Drive, named Solid State Drive, ready for end user use, or for other storage manufacture use. • All flash storage array o == (lots of SSD + array Controller + SAN + LUN Masking + Dedupe + GUI + replication + Snapshot...) o == put all type of SSD or other type of raw Flash together, with a provision interface, to become a storage array, ready for end user.
Rony_Sklar
IT Central Station
Dec 28 2020

How does VDI work? 

Is All-Flash required, or can it work on other storage arrays?

reviewer1222509VDI is a server farm for virtualizing dedicated user desktops. Detailed information can be found at this link, for example, VMware https://www.vmware.com/topics/glossary/content/virtual-desktop-infrastructure-vdi How does VDI work? In the case of my organization for 2 thousand. 20 TB data has been reserved. VDI solutions have a large data reduction (deduplication and compression, up to 20: 1). If the data is reproducible, this factor may be even higher. Is All-Flash required or can it work on other memory arrays? VDI can work on hybrid arrays, but they are not so efficient in boot storm, non-Vistist, VDI, reboot of the whole farm, low response times below 1ms, requirements of similar experiments as on PC.
Rodney CarlsonVDI uses a server solution for virtual desktops. This way the horsepower needed to run applications comes from the server-side and not the client-side. This enables a couple of main things: a similar desktop experience for the end-user no matter where they are and what hardware they are using, and cost savings on the hardware required for the end-user. It enables patching and security benefits as well. The drawbacks are bandwidth requirements and server infrastructure cost. Using an all-flash storage array would help in the IO limitations of the server because any storage requests would be fulfilled quickly. Pros: consistency in all desktops (they are all the same), speed and performance, patching and security, easier upgrades, lower desktop machine cost, server maintenance. Cons: high server hardware requirements, server storage cost is higher, need a higher bandwidth between server and desktop, server maintenance. Any kind of decision to use VDI needs to consider the cost benefit. Would using a virtual desktop be worth it? You decide.
reviewer1243038No, you don't need allflash - but it depends how many users. If you deploy 'desktop just in time' then all vdi instances are in RAM (with small footprint on the storage). Allflash is recommended but not required. It's recommended to have separate storage for VDI solution. Look at vmware.com site - they have great documents and videos how it works.