Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

Seagate Seagate Exos E series HDDs and NAS explained

2,486
840
NAS
Synology, TrueNAS
Operating system
  1. Linux
  2. Windows
Here you can see current status of Seagate Exos series, follow my research (May 7th 2020) from official sources - Seagate product list, Seagate website, Synology compatibility list.
I found some misinterpretation in source from blocksandfiles.com:
"Seagate documentation for the Exos and Archive HDDs explicitly spells out that they use SMR."
What is not true as you can see below. Better is read such information from precise sources, as we do.
If you haven't read my blog yet, it's time.

Basic split of the Exos line:
- Exos E (2.5" & 3.5" form factor), 3.5" FF is a successor of well known Seagate Constellation/Enterprise Capacity and Archive series, 2.5" FF is a successor of Enterprise Performance series
- Exos X (3.5" form factor only), successor of well known Seagate Constellation CS

Exos E series - Detailed description (SATA range) of most important parameters, from NAS point of view:

1. Exos 7E8 - 3.5" FF - successor Seagate Constellation/Enterprise Capacity
Capacity: 1/2/3/4/6/8 TB
Support workloads: 550 TB/year
Max. Sustained Transfer Rate: 215-249MB/s up to chosen model or sector size format in bytes (4k/512e/512n)
Cache: 256MB
Spindle Speed: 7200 rpm
Average Latency: 4.16ms (same as for WD Ultrastar)
Clearly defined as CMR in official Product sheet

2. Exos 7E2 - 3.5" FF - successor Seagate Constellation/Enterprise Capacity
Capacity: 1/2 TB
Support workloads: n/a or defined
Max. Sustained Transfer Rate: 194MB/s ... but in product documentation you will find 185MB/s only
Bytes per sector: 512
Cache: 128MB
Spindle Speed: 7200 rpm
Average Latency: 4.16ms (same as for WD Ultrastar)
Platters: 2x 1TB for both models! ... you can see it in official product documentation ... for 1TB model they use 2 disc with 2 heads, for 2TB model they use 2 disc with 4heads
Clearly defined as CMR in official Product sheet

3. Exos 5E8 - 3.5" FF - successor Seagate Archive
Capacity: 8 TB
Support workloads: 180 TB/year
Max. Sustained Transfer Rate: 190MB/s
Bytes per sector: 512e
Cache: 256MB
Spindle Speed: n/a ... Note: Archive model has 5900rpm
Average Latency: n/a
Platters: 4x 2TB
Clearly defined as SMR in official Product sheet

4. Exos 7E2000 - 2.5" FF - successor Seagate Enterprise Capacity
Capacity: 1/2 TB
Support workloads: 550 TB/year
Max. Sustained Transfer Rate: 135MB/s same for all sector size format in bytes (4k/512e/512n)
Cache: 128MB
Spindle Speed: 7200 rpm
Average Latency: 4.16 ms
Clearly defined as CMR in official Product sheet

rest of the HDDs from this line need SAS interface

Synology compatibility list:
- Exos 7E8 - passed
- Exos 7E2 - not listed till now, but you can find it as previous model - Seagate Enterprise Capacity
- Exos 5E8 - not listed till now, not easy to compare with previous Archive model, then we need to wait for Synology
 

Create an account or login to comment

You must be a member in order to leave a comment

Create account

Create an account on our community. It's easy!

Log in

Already have an account? Log in here.

Popular tags from this forum

Similar threads

  • Question Question
500TB NAS that would be nice :) Apart from the volume size not exceeding 108TB are there any HDD size /...
Replies
4
Views
2,264
  • Question Question
I have replaced the drive and the pool is now repairing itself with the new disk. I tested the old disk...
Replies
28
Views
2,733
  • Question Question
Define “compatible”. If you mean the list that Synology produces of tested drives, you'll have to ask...
Replies
1
Views
1,233

Thread Tags

Tags Tags
nas

Welcome to SynoForum.com!

SynoForum.com is an unofficial Synology forum for NAS owners and enthusiasts.

Registration is free, easy and fast!

Trending content in this forum

Back
Top