EqualLogic
 | |
| Industry | Computer data storage |
|---|---|
| Founded | 2001 |
| Products | iSCSI arrays |
| Parent | Dell |
EqualLogic products are iSCSI-based storage area network (SAN) systems marketed by Dell. Dell has 3 different lines of SAN products: EqualLogic, Compellent and Dell PowerVault. Before the acquisition by Dell, in January, 2008, EqualLogic was an independent company.[1]
History
EqualLogic is a company based in Nashua, New Hampshire. Formed in 2001 by Peter Hayden, Paul Koning, and Paula Long, it raised $52 million from investors between 2001 and 2004. The company was considering an initial public offering on the Nasdaq stock-exchange, but accepted an offer from Dell in 2008.[1] The all-cash take-over transaction of $1.4 billion was the highest price paid for a company financed by venture investors at the time. At the time of acquisition, the company was backed by three venture capital investors: TD Capital Ventures, Focus Ventures and Sigma.
Architecture
EqualLogic systems use iSCSI via either Gigabit Ethernet or 10 Gigabit Ethernet controllers. The currently (June 2014) sold systems with 1 Gbit/s connections are the PS4100, PS6100 and PS6200 while the comparable systems with 10 Gbit/s Ethernet connections are PS4110, PS6110 and PS6210. There have been a number of previous generations, and as long as the software is updated on older systems they can work with the newer models. Within each series there are several options allowing for different types and sizes of hard disk drives or solid-state drives. EqualLogic options combine both in the same chassis and automatically migrate the most frequently accessed data to the SSDs. All PS series systems, except the PS-M4110 blade chassis system, are 19-inch rack systems in a 2 rack unit form factor or a 4 RU chassis for some of the PS61x0 models and the PS65x0 dense models.
EqualLogic Arrays can be combined with up to 16 arrays per group. Groups can mix different members, including multiple hardware generations, as well as different RAID types, in a group. By combining multiple arrays per group, very large storage groups can be created with maximum capacity in one group of over 1.5 PB. Arrays can be segmented into pools, and from pools, volumes. Volumes are exposed on a SAN network, and used by virtual machine hosts or other computers.
Controllers
Each array comes with two controllers, offering redundancy and load-balancing. A controller offers one or more data Ethernet interfaces for the iSCSI traffic and one management interface. A typical array has 2 or more iSCSI Ethernet interfaces and one management interface. The arrays with model PS XX00 have Gigabit Ethernet ports while the PS XX10 offer 10 Gigabit Ethernet ports for iSCSI traffic and a 10 Mbit/s / 100 Mbit/s management port. Depending on the model the interfaces can be either copper-based Gigabit Ethernet or 10GBaseT or fiber-optic interfaces using small form-factor pluggable transceivers. Controllers can be readily identified by a combination of their "faceplate" profile and color.[2]
| Controller Type | Profile | Color | Management | Data | Manufacturers P/N | Dell P/N |
|---|---|---|---|---|---|---|
| Type 1 SATA | wide | black | 1 (shared) | 3 x 1Gbase-T/1Gbit/s SFP (combo) | 70-0001 | |
| Type 2 SATA | wide | blue | 1 (shared) | 3 x 1Gbase-T/1Gbit/s SFP (combo) | 70-0011 | T946J / 0T946J |
| Type 3 SAS | narrow | blue | 1 (shared) | 3 x 1 Gbit/s | ||
| Type 4 SAS | narrow | grey | 0 | 3 x 1 Gbit/s | 70-0111c | |
| Type 5 SATA | narrow | light yellow | 0 | 3 x 1 Gbit/s | 70-0115 | |
| Type 6 SATA | narrow | tan | 1 (shared) | 3 x 1 Gbit/s | 70-0111a | |
| Type 7 SAS | narrow | light green | 0 | 4 x 1 Gbit/s | 70-0202 | |
| Type 8 SAS | narrow | magenta | 1 | 2 x 1 Gbit/s | 70-0120 | |
| Type 9 SAS | narrow | yellow | 1 x 10/100 Mbit/s | 2 x 1 Gbit/s | 70-0210 | |
| Type 10 | narrow | orange | 1 x 10/100 Mbit/s | 2 x 1 Gbit/s SFP | 70-0300 | |
| Type 11 | Wide | light green | 1 | 4 x 1 Gbit/s | ||
| Type 12 | Wide | magenta | 1 | 2 x 10Gbase-T | ||
| Type 13 | M-Blade | silver | ||||
| Type 14 | Wide | orange | 1 | 1x10Gbase-T/1xSFP+ | ||
| Type 17 | Wide | yellow | 1 | 1x10Gbase-T/1xSFP+ |
Models
The current primary models are the PS4200, PS6200 and PS6500 with 1Gb Ethernet and 10 Gb Ethernet model options. Within each "series" (i.e. 4200, 6200 and 6500) there are several sub models that include specific disk configurations. The last generation systems are the PS4100 and PS6100 series systems which continue to be sold.
PS41x0
The PS4100 series consists of 4 rack-models and one PS-M4110 for placement in the Dell M1000e blade enclosure. This model is described separately below.
| PS4000 rack models | ||||
| Model | PS4100E[3] | PS4100KV3,5[4] | PS4110E[5] | PS4110KV3,5[6] |
|---|---|---|---|---|
| height (RU) | 2 RU | 2 RU | 2 RU | 2 RU |
| #HDD | 12 | 12 | 12 | 12 |
| HDD type | 7200 NL-SAS | 15K SAS | 7200 NL-SAS | 15K SAS |
| capacity min using | 12 TB 12 x 1 TB | 3.6 TB 6 x 600 GB | 5 TB 12 x 500 GB | 3.6 TB 6 x 600 GB |
| capacity max using | 36 TB 12 x 3 TB | 7.2 TB 12 x 600 GB | 36 TB 12 x 3 TB | 7.2 TB 12 x 600 GB |
| #controllers | 2 | 2 | 2 | 2 |
| memory/ctrl (Gb) | 4 | 4 | 4 | 4 |
| iSCSI ports per ctrl. | 2 GbE | 2 GbE | 1 x 10GBaseT 1 x 10 Gb SFP+ | 1 x 10GBaseT 1 x 10 Gb SFP+ |
| mgt ports per ctrl. | 1 x 10/100Mb | 1 x 10/100Mb | 1 x 100 Mb | 1 x 100 Mb |
| Max # volumes | 256 | 256 | 256 | 256 |
| Snapshots/volume | 128 | 128 | 128 | 128 |
| Snapshots/group | 2048 | 2048 | 2048 | 2048 |
| RAID levels | 5,6,10,50 | 5,6,10,50 | 5,6,10,50 | 5,6,10,50 |
| Max arrays/group | up to 2 x PS4xxx arrays/group |
PS61x0
The PS61x0 series consists of two main models: PS6100 and PS6110 for 1G or 10G iSCSI ethernet ports on the controller. All arrays support RAID levels 6,10 and 50.
For the PS6100 series and PS6110 series there are 6 sube-models, based on the type of disks used:[7][8]
| Model | PS61x0-E | PS61x0-X | PS61x0-XV | PS61x0-S | PS61x0-XS | PS61x0-XV3,5 |
|---|---|---|---|---|---|---|
| usage/type | high-capacity | balanced | high-performance | low latency | automated SSD tiering | high performance& high capacity |
| height (RU) | 4 | 2 | 2 | 2 | 2 | 4 |
| weight | 45,36 | 25,4 | 25,4 | 24,5 | 24,5 | 44,45 |
| max # disks/size | 24x 3,5" | 24x 2.5" | 24 x 2,5" | 24 x 2,5" | 7 x 2,5SSD 17 z 10K SAS | 24 x 3,5" |
| disk type | 7200 NL-SAS | 10K SAS | 15K SAS | SSD | SSD/10K SAS | 15K SAS |
| min capacity using | 12 TB 500 GB HDD | 7,2 TB 300 GB | 3,5 TB 146 GB | 9,6 TB 400 GB SSD | 13 TB 7 x 400 GB SSD 17 x 600 GB HDD | 7,2 TB 12 x 600GB |
| max capacity using | 72 TB 3 TB HDD | 21,6 TB 900 GB | 7,2 TB 300 GB | 19,2 TB 800 GB SSD | 13 TB fixed capacity | 14,4 TB 600 GB |
| Powerconsumption | 1080 W | 700 W | 700 W | 700 W | 700 W | 1080 W |
PS-M 4110
The PS-M 4110 is a SAN array in the form-factor of a dual 1/2 height blade-server and can be installed in the Dell M1000e blade-chassis. There are 4 models of this "datacenter in a box" solution where servers, storage and networking are all combined in one blade-enclosure
The SAN communicates with the blade servers in the chassis and/or external servers via Force10 MXL switches, PowerConnect M8024-K or Brocade based PC-M8428-K in the back of the enclosure. Also possible to use 10G Passthrough modules and external switches.[9]
| PS-M 4110 blade SAN | ||||
| Model | PS-M4110-E | PS-M4110-X | PS-M4110-XV | PS-M4110-XS |
|---|---|---|---|---|
| Usage | Hi-capacity | balanced perf/capacity | high perf | low latency |
| Controllers | 1 or 2 | 1 or 2 | 1 or 2 | 2 only |
| Typical power | 248,9 W | 261 W | 293,3 W | 230,4 W |
| Weight (Kg) | 12,49 | 12,87 | 12,62 | 12,38 |
| Disk drives | 14 HDD | 14 HDD | 14 HDD | 9 x 10K SAS & 5 x SSD |
| Drive capacity | 500 GB or 1 TB | 600 GB 900 GB | 146 GB 300 GB | 600 GB HDD 400 GB SSD |
| Drive type | 7,2k NL-SAS | 10K SAS | 15K SAS | 10K SAS+SSD |
| System capacity | 7 - 14 TB | 8,4-12,5 Tb | 2,5-4,2 TB | 7,4 Tb |
PS6500 and PS6510
The PS65x0 series consists of in total 6 models scalable SAN solutions. As with the other series the PS6500 is using 1Gb ethernet NIC's and the PS6510 offers 10Gb SFP+ interfaces.[10]
| PS 65x0 SAN | |||
| Model | PS6500-E/P6510-E | PS6500-ES/PS6510-ES[11] | PS6500-X/PS6510-X[12] |
|---|---|---|---|
| Usage | Hugely scalable High density | Increased capacity+performance | High performance &Dense Capacity |
| Height (RU en cm | 4 = 17,5 cm | 4 = 17,5 cm | 4 = 17,5 cm |
| Weight (Kg) | 74,8 | 74,8 | 74,8 |
| Powerconsumption | 1000-1030 VA 1400 VA Peak | 1000-1030 VA 1400 VA Peak |
1000-1030 VA |
| Heat dispensation | 3400 BTU max | 3400 BTU | 3400 BTY |
| # disks | 48 | 7 SSD + 41 HDD | 48 |
| drive-options | 1TB SATA 2TB SATA 3 TB NL-SAS | 7 x 400 Gb SSD & 41 x 2 TB NL-SAS | 600 GB-SAS 900 GB SAS |
| driver speed | 7200 RPM SATA 7200 RPM SAS | SSD & 7200 RPM SAS | 10K RPM SAS |
| array capacity | 48 TB 96 TB 144 TB | 84.8 TB | 28,9 TB 43,2 T |
FS7500 / FS7600
Dell Fluid File System is available in combination with an EQLX array for the storage. FluidFS is also delivered in combination with Compellent and PowerVault SAN systems. Both the FS7500 and FS7600 NAS using EQLX SAN offers a maximum system site of 509 TB. The FS7600 is the 2nd generation system which is also available using 10G iSCSI speeds between the FS controller and the storage backbone[13]
References
- 1 2 XConomy Boston, Dell to buy EQLX for $ 1.4 billion, 5 November 2007. Visited: 1 March 2013
- ↑ "Used Dell EqualLogic Controllers iSCSI SAN Storage Systems". www.expresscomputersystems.com. Retrieved 2016-02-14.
- ↑ Technical specs PS4100E, visited 29 April 2013
- ↑ Technical specs PS4100KV3,5, visited 2 March 2013
- ↑ Technical specs PS4110E, visited 2 March 2013
- ↑ Technical specs PS4110KV3,5, visited 2 March 2013
- ↑ PS6100 series model overview, visited 2 March 2013
- ↑ PS6110 series model overview, visited 2 March 2013
- ↑ Dell datasheet on EQLX PS-M4110, downloaded: 2 March 2013
- ↑ Dell website on PS-65x0 series, visited 2 March 2013
- ↑ PS6500-ES/PS6510-ES specifications, visited 2 March 2013
- ↑ Technical specification 65x0-X, visited 2 March 2013
- ↑ Dell EQLX website on FS7600 NAS systems
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