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why exactly is sas and sata separated here on this page? (see below)

Orian Pax
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Go to solution Solved by AbydosOne,
5 minutes ago, Orian Pax said:

so like what is physically different in sas drives compared to sata drives?
some sort of extra chip (bit different hardware) or just different firmware (or just different software)?

- thank you

Don't make a new post for each quote. You can quote multiple times in one post.

 

Likely the controller is the same chip running different firmware.

 

Physical differences, see below:

 

SAS_SATA_text_2_1024x1024.png?v=1604503325

Posted

https://www.newegg.com/seagate-exos-x18-st18000nm004j-18tb/p/1B4-00VK-00617

1) why exactly is sas and sata separated here on this page?


2) wait since when sas and sata HDDs are different?

3) what exactly is different between these(👇)  Hdds?

ST18000NM000J       

ST18000NM004J      

or

so like what is physically different in sas drives compared to sata drives?
some sort of extra chip (bit different hardware) or just different firmware (or just different software)?

 

- thank you very much

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1 minute ago, Orian Pax said:

1) why exactly is sas and sata separated here on this page?
2) wait since when sas and sata HDDs are different?
3) what exactly is different between these(👇)  Hdds?

SAS and SATA are not the same, which is why they are seperated on that page.

This video should explain the difference between SAS and SATA:

TL;DW: if you don't know you need SAS, you don't need SAS. SATA is the standard for consumer desktop/NAS devices and SAS is a similar, but still different standard.

"We're all in this together, might as well be friends" Tom, Toonami.

 

mini eLiXiVy: my open source 65% mechanical PCB, a build log, PCB anatomy and discussing open source licenses: https://linustechtips.com/topic/1366493-elixivy-a-65-mechanical-keyboard-build-log-pcb-anatomy-and-how-i-open-sourced-this-project/

 

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2 minutes ago, Orian Pax said:

wait since when sas and sata HDDs are different?

Since always.

 

SAS controllers can read SATA drives, but not vice versa.

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Proxmox Server (Veda): Ryzen 7 3800XT | AsRock Rack X470D4U | Corsair H80i v2 | 64GB Micron DDR4 ECC 3200MT/s | 4x 10TB WD Whites / 4x 14TB Seagate Exos / 2× Samsung PM963a 960GB SSD | Seasonic Prime Fanless 500W | Intel X540-T2 10G NIC | LSI 9207-8i HBA | Fractal Design Node 804 Case (side panels swapped to show off drives) | VMs: TrueNAS Scale; Ubuntu Server (PiHole/PiVPN/NGINX?); Windows 10 Pro; Ubuntu Server (Apache/MySQL)


Media Center/Video Capture (Jesta Cannon): Ryzen 5 1600X | ASRock B450M Pro4 R2.0 | Noctua NH-L12S | 16GB Crucial DDR4 3200MT/s CAS-22 | EVGA GTX750Ti SC | UMIS NVMe SSD 256GB / TEAMGROUP MS30 1TB | Corsair CX450M | Viewcast Osprey 260e Video Capture | Mellanox ConnectX-2 10G NIC | LG UH12NS30 BD-ROM | Silverstone Sugo SG-11 Case | Sony XR65A80K

 

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Network:

Spoiler 
                           ┌─────────────── Office/Rack ────────────────────────────────────────────────────────────────────────────┐
Google Fiber Webpass ────── UniFi Security Gateway ─── UniFi Switch 8-60W ─┬─ UniFi Switch Flex XG ═╦═ Veda (Proxmox Virtual Switch)
(500Mbps↑/500Mbps↓)                             UniFi CloudKey Gen2 (PoE) ─┴─ Veda (IPMI)           ╠═ Veda-NAS (HW Passthrough NIC)
╔═══════════════════════════════════════════════════════════════════════════════════════════════════╩═ Narrative (Asus USB 2.5G NIC)
║ ┌────── Closet ──────┐   ┌─────────────── Bedroom ──────────────────────────────────────────────────────┐
╚═ UniFi Switch Flex XG ═╤═ UniFi Switch Flex XG ═╦═ Byarlant
   (PoE)                 │                        ╠═ Narrative (Cable Matters USB-PD 2.5G Ethernet Dongle)
                         │                        ╚═ Jesta Cannon*
                         │ ┌─────────────── Media Center ──────────────────────────────────┐
Notes:                   └─ UniFi Switch 8 ─────────┬─ UniFi Access Point nanoHD (PoE)
═══ is Multi-Gigabit                                ├─ Sony Playstation 4 
─── is Gigabit                                      ├─ Pioneer VSX-S520
* = cable passed to Bedroom from Media Center       ├─ Sony XR65A80K (Google TV)
** = cable passed from Media Center to Bedroom      └─ Work Laptop** (Startech USB-PD Dock)

Retired/Other:

Spoiler

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TrueNAS Server (La Vie en Rose): Xeon E3-1241v3 | Supermicro X10SLL-F | Corsair H60 | 32GB Micron DDR3L ECC 1600MHz | 1x Kingston 16GB SSD / Crucial MX500 500GB

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Posted

image.png.67e1ae9ae9262b53da12aedec2e53cb2.png

 

12gb/s vs 6gb/s

you can plug sata in sas, but not the other way around.

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10 minutes ago, SupaKomputa said:

image.png.67e1ae9ae9262b53da12aedec2e53cb2.png

 

12gb/s vs 6gb/s

you can plug sata in sas, but not the other way around.

If SAS exists, and it supports SATA drives, then why the hell was SATA Express a thing?

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Just now, HairlessMonkeyBoy said:

If SAS exists, and it supports SATA drives, then why the hell was SATA Express a thing?

yes that's why the question came to my mind in the first place and i guess it's bcuz
1) sas is only effective when multiple people are using/accessing the same hdds/storage at once! and sas is able to do it on one controller making it more targeted towards servers.
2) and sata express is effective even if a single user is accessing that storage. sata express i guess was more of "boosting" thing which had become a need bcuz tech wasn't as speedy as today is,bound by time, no wonder it's not available in most of modern motherboards.
 

 

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40 minutes ago, minibois said:

SAS and SATA are not the same, which is why they are seperated on that page.

This video should explain the difference between SAS and SATA:

TL;DW: if you don't know you need SAS, you don't need SAS. SATA is the standard for consumer desktop/NAS devices and SAS is a similar, but still different standard.

so like what is physically different in sas drives compared to sata drives?
some sort of extra chip (bit different hardware) or just different firmware (or just different software)?

- thank you

 

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41 minutes ago, AbydosOne said:

Since always.

 

SAS controllers can read SATA drives, but not vice versa.

so like what is physically different in sas drives compared to sata drives?
some sort of extra chip (bit different hardware) or just different firmware (or just different software)?

- thank you

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40 minutes ago, Eigenvektor said:

SAS - Serial Attached SCSI

SATA - Serial ATA

so like what is physically different in sas drives compared to sata drives?
some sort of extra chip (bit different hardware) or just different firmware (or just different software)?

- thank you

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5 minutes ago, Orian Pax said:

so like what is physically different in sas drives compared to sata drives?
some sort of extra chip (bit different hardware) or just different firmware (or just different software)?

- thank you

Don't make a new post for each quote. You can quote multiple times in one post.

 

Likely the controller is the same chip running different firmware.

 

Physical differences, see below:

 

SAS_SATA_text_2_1024x1024.png?v=1604503325

Main System (Byarlant): Ryzen 7 5800X | Asus B550-Creator ProArt | EK 240mm Basic AIO | 16GB G.Skill DDR4 3200MT/s CAS-14 | XFX Speedster SWFT 210 RX 6600 | Samsung 990 PRO 2TB / Samsung 960 PRO 512GB / 4× Crucial MX500 2TB (RAID-0) | Corsair RM750X | Mellanox ConnectX-3 10G NIC | Inateck USB 3.0 Card | Hyte Y60 Case | Dell U3415W Monitor | Keychron K4 Brown (white backlight)

 

Laptop (Narrative): Lenovo Flex 5 81X20005US | Ryzen 5 4500U | 16GB RAM (soldered) | Vega 6 Graphics | SKHynix P31 1TB NVMe SSD | Intel AX200 Wifi (all-around awesome machine)

 

Proxmox Server (Veda): Ryzen 7 3800XT | AsRock Rack X470D4U | Corsair H80i v2 | 64GB Micron DDR4 ECC 3200MT/s | 4x 10TB WD Whites / 4x 14TB Seagate Exos / 2× Samsung PM963a 960GB SSD | Seasonic Prime Fanless 500W | Intel X540-T2 10G NIC | LSI 9207-8i HBA | Fractal Design Node 804 Case (side panels swapped to show off drives) | VMs: TrueNAS Scale; Ubuntu Server (PiHole/PiVPN/NGINX?); Windows 10 Pro; Ubuntu Server (Apache/MySQL)


Media Center/Video Capture (Jesta Cannon): Ryzen 5 1600X | ASRock B450M Pro4 R2.0 | Noctua NH-L12S | 16GB Crucial DDR4 3200MT/s CAS-22 | EVGA GTX750Ti SC | UMIS NVMe SSD 256GB / TEAMGROUP MS30 1TB | Corsair CX450M | Viewcast Osprey 260e Video Capture | Mellanox ConnectX-2 10G NIC | LG UH12NS30 BD-ROM | Silverstone Sugo SG-11 Case | Sony XR65A80K

 

Camera: Sony ɑ7II w/ Meike Grip | Sony SEL24240 | Samyang 35mm ƒ/2.8 | Sony SEL50F18F | Sony SEL2870 (kit lens) | PNY Elite Perfomance 512GB SDXC card

 

Network:

Spoiler 
                           ┌─────────────── Office/Rack ────────────────────────────────────────────────────────────────────────────┐
Google Fiber Webpass ────── UniFi Security Gateway ─── UniFi Switch 8-60W ─┬─ UniFi Switch Flex XG ═╦═ Veda (Proxmox Virtual Switch)
(500Mbps↑/500Mbps↓)                             UniFi CloudKey Gen2 (PoE) ─┴─ Veda (IPMI)           ╠═ Veda-NAS (HW Passthrough NIC)
╔═══════════════════════════════════════════════════════════════════════════════════════════════════╩═ Narrative (Asus USB 2.5G NIC)
║ ┌────── Closet ──────┐   ┌─────────────── Bedroom ──────────────────────────────────────────────────────┐
╚═ UniFi Switch Flex XG ═╤═ UniFi Switch Flex XG ═╦═ Byarlant
   (PoE)                 │                        ╠═ Narrative (Cable Matters USB-PD 2.5G Ethernet Dongle)
                         │                        ╚═ Jesta Cannon*
                         │ ┌─────────────── Media Center ──────────────────────────────────┐
Notes:                   └─ UniFi Switch 8 ─────────┬─ UniFi Access Point nanoHD (PoE)
═══ is Multi-Gigabit                                ├─ Sony Playstation 4 
─── is Gigabit                                      ├─ Pioneer VSX-S520
* = cable passed to Bedroom from Media Center       ├─ Sony XR65A80K (Google TV)
** = cable passed from Media Center to Bedroom      └─ Work Laptop** (Startech USB-PD Dock)

Retired/Other:

Spoiler

Laptop (Rozen-Zulu): Sony VAIO VPCF13WFX | Core i7-740QM | 8GB Patriot DDR3 | GT 425M | Samsung 850EVO 250GB SSD | Blu-ray Drive | Intel 7260 Wifi (lived a good life, retired with honor)

Testbed/Old Desktop (Kshatriya): Xeon X5470 @ 4.0GHz | ZALMAN CNPS9500 | Gigabyte EP45-UD3L | 8GB Nanya DDR2 400MHz | XFX HD6870 DD | OCZ Vertex 3 Max-IOPS 120GB | Corsair CX430M | HooToo USB 3.0 PCIe Card | Osprey 230 Video Capture | NZXT H230 Case

TrueNAS Server (La Vie en Rose): Xeon E3-1241v3 | Supermicro X10SLL-F | Corsair H60 | 32GB Micron DDR3L ECC 1600MHz | 1x Kingston 16GB SSD / Crucial MX500 500GB

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4 minutes ago, AbydosOne said:

Don't make a new post for each quote. You can quote multiple times in one post.

 

Likely the controller is the same chip running different firmware.

 

Physical differences, see below:

 

SAS_SATA_text_2_1024x1024.png?v=1604503325

thank you very much that helps a lot!
it means now
1) i should get sata ones.

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