Mellanox Connectx-2 VPI Dual Port Adapter - $49.99 OBO

T_Minus

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Can you do iSCSI over IB direct-connect?

IE: DB server <-> iSCSI Target on fileServer IB for MySQL ?

Seems like $50 + cable would be CHEAP for that speed if you don't need anything else.
 

CreoleLakerFan

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Oct 29, 2013
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Can you do iSCSI over IB direct-connect?

IE: DB server <-> iSCSI Target on fileServer IB for MySQL ?

Seems like $50 + cable would be CHEAP for that speed if you don't need anything else.
Yeah, I'm using IPoIB to export iSCSI LUNS via ZFS to my ESX hosts. I use the second port of the dual port cards for vmkernel (vmotion, ft, ha, etc).
 
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CreoleLakerFan

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I think these use a different connection - looks like they're ~$30 for QSFP-to-CX4 ... not sure how much QSFP cables are ... my switch is only DDR (CX4). I'll figure it out ... in the middle of getting partitions (IB VLANs) figured out.
 

Marsh

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It is QSFP connector.

Part Number : HCA-30024
Device Id : 26428
Revision Id : B0

Goto Mellanox site:
Firmware for ConnectX®-2 IB/VPI - Mellanox Technologies
To be safe, cross flash to the same version of firmware, but only change the PSID.
I picked MHQH29B firmware, flash it with override switch.
After the cross flash, then I flash the "new" MHQH29B card with the latest version firmware 2.10.720.

May be someone could try to flash it as MHQH29C board
 

Marsh

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Believe it or not, there is one ebay seller sells a real Mellanox cable for 99 cents each with free shipping.
I managed to buy half a dozen of genuine Mellanox QSFP cables.
Other times, they are around $10-15 each cable.
 

Marsh

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PS C:\Users> Get-NetAdapter

Name InterfaceDescription ifIndex Status MacAddress LinkSpeed
---- -------------------- ------- ------ ---------- ---------
Ethernet 3 Mellanox ConnectX-2 IPoIB Adapter #2 28 Up 00-08-F1-3D- 32 Gbps
Ethernet 2 Mellanox ConnectX-2 IPoIB Adapter 24 Up 00-08-F1-3D- 32 Gbps
Ethernet Broadcom NetLink (TM) Gigabit Ethernet 12 Up 90-FB-A6-23- 1 Gbps


PS C:\Users> Get-NetAdapterRDMA

Name InterfaceDescription Enabled
---- -------------------- -------
Ethernet 3 Mellanox ConnectX-2 IPoIB Adapter #2 True
Ethernet 2 Mellanox ConnectX-2 IPoIB Adapter True
 

T_Minus

Build. Break. Fix. Repeat
Feb 15, 2015
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Items in SaveCentral Outlet store on eBay!

I checked my ebay purchase, I brought lots of Mellanox cables from this seller.
Price range from 99 cents to $8 per cable.

Mellanox MCC4Q28C-004 13.1 Feet Network Cable - 4X QSFP Latch -26 AWG
Mellanox MCE4R28C-008 26.3 Feet Network Cable - 4X QSFP Latch 28 AWG
Doing a search for both show none at this time.

Do they update often? What about some that are 6 feet or 9 feet?