PCI-e Sata expansion card

[sanfark]

2 hours ago, JorgeB said:

It's not dedicated to each port, if you have two disks connected, but are only sung one, it will have the full bandwidth.

Excellent. That being said, would be be unwise to over provision your PCIe x1 throughput by adding more disks than you have throughput? for example using a 4 port SATA controller on PCI 1.0.

 

If you leave your parity drive on MOBO dedicated SATA and your cache on MOBO dedicated SATA, one would believe it is fine to over provision or am I missing something? I am trying to think of a scenario where all disks are read/writing at once; then over provisioning would be unwise. Parity check perhaps?

[JorgeB]

7 minutes ago, sannitig said:

Excellent. That being said, would be be unwise to over provision your PCIe x1 throughput by adding more disks than you have throughput? for example using a 4 port SATA controller on PCI 1.0.

It's fine as long as you understand performance will suffer if they are used all together, you could have for example just one array disk there and use other ports for a pool, they wouldn't interfere if used separately.

[DerAndi]

Hallo zusammen,

 

ich glaube ich habe hier irgendwo schon im Thread jemanden gesehen der die IO Crest am laufen hat mit 5 Port.

 

O Crest Interne PCI-E x4 Controllerkarte

 

mich Interessiert natürlich wie lange diese schon im Einsatz ist und ob die einwandfrei mit Unraid funktioniert oder  ob die gar Probleme macht? Frage deshalb da ich bald eine Karte für die Erweiterung brauch.

 

gruß

[Gragorg]

13 hours ago, DerAndi said:

Hallo zusammen,

 

ich glaube ich habe hier irgendwo schon im Thread jemanden gesehen der die IO Crest am laufen hat mit 5 Port.

 

O Crest Interne PCI-E x4 Controllerkarte

 

mich Interessiert natürlich wie lange diese schon im Einsatz ist und ob die einwandfrei mit Unraid funktioniert oder  ob die gar Probleme macht? Frage deshalb da ich bald eine Karte für die Erweiterung brauch.

 

gruß

Diese Karte sollte gut funktionieren. Es handelt sich um einen unterstützten Chipsatz und eine anständige Marke.

[MrAndyBurns]

If it's of interest, I had to get 2 extra sata ports (Mobo/CPU upgrade with less ports then to find dead sata port) and was looking for a quick fix. I can't afford a nice HBA card so I went for an 'KALEA-INFORMATIQUE PCI Express PCIe x1 2 port controller card for SATA hard drives. Compact format, with ASM1061' as I believed the ASM1061 chip was okay ... sadly the card was not recognised by the system so I returned it and got a 'MZHOU PCIe SATA Card 2 Port - PCI Express SATA 3.0 GEN3 Expansion Card - 6 Gbp/s SATA Controller Expansion Cards with Low-Profile Bracket (Chip JMICRON+JMB582)'

 

So far so good with parity check running well for all drives and a drive passed through to a VM.