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EqualLogic PS Series - The Best iSCSI SAN?

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The Dell EqualLogic PS Series is the industry’s leading iSCSI based enterprise SAN solution that offers an affordable alternative to traditional fibre channel storage systems. The PS Series virtual storage architecture enables exceptional performance, simple set up, automated management, multiple tiers of storage, on-demand scalability, and seamless interoperability with virtual infrastructure solutions.

EqualLogic PS6100 Series - The Best iSCSI SAN Just Got Better!

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Dell EqualLogic PS6100 series arrays deliver exceptional flexibility across multiple configurations. Fluid Data technology seemlessly tiers data between SSD, SAS and NL SAS disk to reduce latency and maximise performance. The 24-drive chassis delivers up to 72TB from a single 4U appliance.

EqualLogic PS6500E - Best Value iSCSI SAN

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The Dell EqualLogic PS6500 is a high-density virtualized storage array that can deliver a hugely scalable iSCSI SAN. The PS6500E or 'SUMO' appliance accomodates 48 SAS / SATA drives into just 4U of rack space, up to 16 appliances can be combined into a storage pool delivering a massive 1.5PB of high performance space.

PS4100 Series Entry Level Arrays, Enterprise Class Features

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Dell EqualLogic PS4100 series arrays provide datacenter class storage to small to medium sized businesses. Based upon the best selling PS6100 series arrays, the all inclusive licensing model ensures that there are no hidden costs - everything is included 'out of the box' to create a high performance, robust storage environment with a simple route to disaster recovery.

Virtualisation with VMware and EqualLogic

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By combining VMware Infrastructure and Dell EqualLogic PS Series arrays customers are provided a solution that delivers improved infrastructure scalability and management, high availability, significant cost savings and comprehensive disaster recovery. The excellent relationship between EqualLogic and VMware means that PS Series arrays are always amongst the first to support new features and standards.

Are You Ready for the Bake Off?

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We'd be lying if we told you that Dell EqualLogic was the only iSCSI SAN platform out there, but we're entirely comfortable telling you that it's the one you should choose. When you're ready for the 'bake-off' we'd love to show you why WE sell more EqualLogic arrays than all the other vendors arrays put together...

EqualLogic 10GbE - Here, Now and Faster than Fibre

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For a long time Fibre Channel storage vendors boasted about higher bandwidth connectivity into their arrays. Old school fibre channel buyers thought that Gigabit Ethernet iSCSI might compromise storage performance. We knew that wasn't the case, but if you're looking for high bandwidth it doesn't get fatter than this! Four 10GbE connections per array = blazing fast iSCSI!

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Dell Equallogic PS4000 series PS4000E PS4000X PS4000XV

 

The Dell EqualLogic PS 4000 series could be considered an entry level iSCSI SAN appliance, however it's excellent performance and comprehensive feature set makes it a perfect SAN storage platform for small to medium sized server estates and virtual environments. The low price point also makes it an ideal choice for project work or branch offices.

Scaling and performance of the PS4000 series has been adjusted in line with it's price point, although the user is still left with a much stronger feature set than you receive with many higher end arrays - including storage virtualisation, snapshots, replication, volume groups and more. It is also important to consider that all featured caps are removed when a PS4000 array shares a storage pool with a legacy PS Series array, a PS5000 series or a PS6000 series unit.

 

The same disk technologies are present (with the exception of SSD) so the familiar naming conventions apply - PS4000E (SATA), PS4000X (10K SAS), PS4000XV (15K SAS)  

Dell Equallogic PS4000 Series Rear Controllers PS 4000

A quick comparison between the PS4000 series and the PS6000 is shown in the table below, as the table shows it's still a very powerful box and sure to bring cost effective iSCSI SAN storage within reach of many more users.

If you'd like to find out more about the PS4000 series, or simply to discuss your storage requirements please get in touch using the contact form, or by mailing us on This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Description PS4000 Series PS6000 Series
     
Members Per Group 2* 16
Members Per Pool 2 8
Pools Per Group 2 4
Number of Controllers Single or Dual Single or Dual
Ports Per Controller 2 GBe Data, 1 10/100 Managment 4 Gbe Data
Memory Per Controller 2GB 2GB
Upgrades To Full PS Series Controller 10GbE
Disk Options SATA, 10K SAS, 15K SAS SATA, 10K SAS, 15K SAS, SSD
RAID Options 5 / 6 / 10 / 50 5 / 6 / 10 / 50
Software Features Full features, reduced levels Full Features
Volumes & Replica Sets in a Group 256 1024
Volume Size 15TB 15TB
Snapshots, Replicas per Group 2048 10,000
Snapshots of a Volume 128 512
Schedules (Snapshot/Replication) per Volume 16 16
Volumes Enabled for Replication 32 256
Replicas per Volume 128 512
Volumes Per Collection 8 8
Collections Per Group (Snapshot/Replication) 100 100
Replication Partners in Group 16 16
Replication Partners Per Volume 1 1
Drives Per Group 32 192
Pools in a Group 2 4
Members in a Pool 2 8
Volume Connections (per Pool) 256 1024
Volume Connections (total) 512 per Group (2 Pools) 4096 per Group (4 Pools)

 

*PS4000 series appliances can be placed in a storage group with PS5000/PS6000 series appliances, in which case the restriction on overall group size is relaxed, however only two PS4000 units may exist in any one group.

See Also: EqualLogic PS4000E , EqualLogic PS4000X , EqualLogic PS4000XV

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