ServerRaid M5110 JBOD or RAID0

[chandlerbing]

I have a x3550 M4 with a ServerRaid M5110 adapter.  On the VSAN HCL this adapter is supported for RAID0 on 5.5 and 6.0.  I was able to set the adapter in pass-thru mode by removing the memory cache card.  Does this mean that VMware does not support pass-thru mode for this adapter and i would have to put the card back and create a raid0 disk group?  I would rather go with pass-thru mode.

Brand Name	Model	Type	Feature	Product Description	Queue Depth	Supported Releases
IBM	ServeRAID M5110 SAS/SATA Controller for IBM System x (81Y4481)	Hybrid	RAID 0	Device Type: SAS-RAID VID: 1000 SVID: 1014 DID: 005B SSID: 040B	975	ESXi 6.0 ESXi 5.5 U2 ESXi 5.5 U1

[Ramakrishna Kempaiah]

while you are at it can you check what is the QueueDepth you are getting on this card configured for passthrough mode

you can refer here on how to cehck the queuedepth Disk Controller features and Queue Depth?

Thanks,

[chandlerbing]

Queue Depth

With Cache - 975

Without Cache - 250

I will try to install the inbox driver to see if the queue goes up but doesn't look promising

[chandlerbing]

never mind the inbox driver is already loaded.  Probably need to put back the cache card in this case and use RAID0? 

[Ramakrishna Kempaiah]

queue depth without cache is quite low for qualifying on VSAN.

send your finding query to [e-mail]

Thanks

[Bleeder]

The ServeRAID M5200 series controllers (M5210, M5210e, M5225) have the same problem.  Without cache, queue depth is horrible (234).  This is quite disappointing.  Tested JBOD and RAID 0 configurations.