Startech PEX8M2E2 with two KC3000 NVME M.2 and RS1221+ help

[PerOpstad]

The os recognice the disks: _**sh-4.4# cat /proc/partitions
major minor #blocks name

259 0 1000204632 nvme0n1
259 1 1000204632 nvme1n1
*
sh-4.4# '**_
so Hardware and PCIe card is working.
But DSM GUI is not showing them.

script output:
_sh-4.4# ./syno_hdd_db.sh
Synology_HDD_db v3.6.111
RS1221+ x86_64 DSM 7.2.2-72806-3
StorageManager 1.0.0-00502
rs1221+_host_v7 version 8047
Running from: /root/Synology_HDD_db-main/syno_hdd_db.sh
HDD/SSD models found: 1
ST24000NT002-3N1101,EN01,24000 GB
No M.2 drives found
No M.2 PCIe cards found
No Expansion Units found
Added ST24000NT002-3N1101 to rs1221+_host_v7.db
Edited unverified drives in rs1221+host_v7.db
Backed up synoinfo.conf
Support disk compatibility already enabled.
Support memory compatibility already enabled.
NVMe support already enabled.
Drive db auto updates already enabled.
DSM successfully checked disk compatibility.
You may need to reboot the Synology to see the changes.
sh-4.4#

So how can i get the disk up as cache in synology?
Please advice!
THX!

[007revad]

For the price of the Startech PEX8M2E2 I would have just spent a bit extra and got the Synology M2D20.

What does "Control Panel > Info Center > PCIe Slot 1" show?

The Synology E10M20-T1 also has ASMedia ASM2824 PCIe Gen3 Packet Switch (the same as the Startech PEX8M2E2). I suspect the Synology M2D20 does too.

So in theory we'd probably need to add the following to /usr/syno/etc/adapter_cards.conf and /usr/syno/etc.defaults/adapter_cards.conf

[PEX8M2E2_sup_nvme]
RS1221+=yes

and add a PEX8M2E2 section in /etc/model.dtb which is more work than just editing a text file (like /usr/syno/etc/adapter_cards.conf). This would look something like this:

	PEX8M2E2 {
		compatible = "StarTech";
		model = "startech_PEX8M2E2";
		power_limit = "14.85,14.85";

		m2_card@1 {

			nvme {
				pcie_postfix = "00.0,08.0,00.0";
				port_type = "ssdcache";
			};
		};

		m2_card@2 {

			nvme {
				pcie_postfix = "00.0,04.0,00.0";
				port_type = "ssdcache";
			};
		};
	};

[007revad]

PS we might be better taking this discussion to https://github.com/007revad/Synology_enable_M2_card

[PerOpstad]

THX!. It shows «Occupied» in the info center. Med vennlig hilsen Per Otto Opstad CEO / Daglig Leder ITVakta AS Innsidevegen 448 | 6475 Midsund M: +47 982 28 109 W: www.itvakta.no<http://www.itvakta.no/> | E: ***@***.******@***.***> Fra: Dave Russell ***@***.***> Sendt: tirsdag 24. juni 2025 09:11 Til: 007revad/Synology_HDD_db ***@***.***> Kopi: Per Otto Opstad ***@***.***>; Author ***@***.***> Emne: Re: [007revad/Synology_HDD_db] Startech PEX8M2E2 with two KC3000 NVME M.2 and RS1221+ help (Discussion #481) For the price of the Startech PEX8M2E2 I would have just spent a bit extra and got the Synology M2D20. What does "Control Panel > Info Center > PCIe Slot 1" show? The Synology E10M20-T1 also has ASMedia ASM2824 PCIe Gen3 Packet Switch (the same as the Startech PEX8M2E2). I suspect the Synology M2D20 does too. So in theory we'd probably need to add the following to /usr/syno/etc/adapter_cards.conf and /usr/syno/etc.defaults/adapter_cards.conf [PEX8M2E2_sup_nvme] RS1221+=yes and add a PEX8M2E2 section in /etc/model.dtb which is more work than just editing a text file (like /usr/syno/etc/adapter_cards.conf). This would look something like this: PEX8M2E2 { compatible = "StarTech"; model = "startech_PEX8M2E2"; power_limit = "14.85,14.85"; ***@***.*** { nvme { pcie_postfix = "00.0,08.0,00.0"; port_type = "ssdcache"; }; }; ***@***.*** { nvme { pcie_postfix = "00.0,04.0,00.0"; port_type = "ssdcache"; }; }; }; }; — Reply to this email directly, view it on GitHub<#481 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BPG76ZIZUETIPD5HKRUUASL3FD2WTAVCNFSM6AAAAAB75PP7IOVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTGNJVHA2TCMY>. You are receiving this because you authored the thread.Message ID: ***@***.******@***.***>>